 |
|
|
|
Next: radiator
|
| Author |
Message |
External
Since: May 25, 2004
Posts: 9
|
(Msg. 1) Posted: Mon Nov 13, 2006 11:59 pm
Post subject: Timing belt again
Archived from groups: alt>autos>ford (more info?)
|
|
|
|
| Here is another about my timing belt. 91 tracer with the 1.9 motor. How am
I sure that the cam gear is set to TDC on #1? Can it be 180 out when the
marks are aligned? I plan to use a compression gauge on #1 to set the crank
on TDC. Any ideas or info?
|
>> Stay informed about: Timing belt again |
|
| Back to top |
|
 | |
External
Since: Mar 17, 2006
Posts: 64
|
(Msg. 2) Posted: Tue Nov 14, 2006 1:14 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
gjtms wrote:
> Here is another about my timing belt. 91 tracer with the 1.9 motor. How am
> I sure that the cam gear is set to TDC on #1? Can it be 180 out when the
> marks are aligned? I plan to use a compression gauge on #1 to set the crank
> on TDC. Any ideas or info?
Technically speaking, the cam shaft doesn't have a TDC position. This
term applies to the crankshaft when the #1 piston is all the way up and
the valves are closed for that cylinder. The cam gear on your car has a
pointer or arrow cast into the webbing of the face. This should be
aligned with the mark on the head behind the gear. When the cam is in
that position, both valves are closed for the #1 cylinder. If the crank
and cam shafts are aligned accurately on their respective marks, there
can't be any phase error (180-deg) between them. Unlike older cars with
a mechanical distributor, the ignition system on your car fires the
plugs on every revolution of the crank because it gets it's timing from
the crank sensor not the cam shaft. The fuel injectors get their timing
from the cam shaft sensor. It doesn't affect the engine performance to
have the plugs firing on the top of the exhaust strokes in addition to
the compression strokes. I've wondered if the plugs wear a little faster
though.
Be sure to keep the belt taught on the forward (straight) side before
releasing the tensioner. This will insure that the belt won't skip on
either gear when the engine is started. It's best to crank the engine a
few turns without starting it, so the belt can seat properly. You can do
this on your Tracer by holding the gas pedal all the way to the floor
before and while you turn the key. The car's ignition system is designed
not to fire the plugs in this situation. It's a feature for clearing a
flooded engine. Did you also change the water pump? This would be a good
time to do it. I would also change the belt tensioner if it's never been
done. |
|
| Back to top |
|
| |
External
Since: Mar 17, 2006
Posts: 64
|
(Msg. 3) Posted: Tue Nov 14, 2006 1:14 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
gjtms wrote:
> Here is another about my timing belt. 91 tracer with the 1.9 motor. How am
> I sure that the cam gear is set to TDC on #1? Can it be 180 out when the
> marks are aligned? I plan to use a compression gauge on #1 to set the crank
> on TDC. Any ideas or info?
Technically speaking, the cam shaft doesn't have a TDC position. This
term applies to the crankshaft when the #1 piston is all the way up and
the valves are closed for that cylinder. The cam gear on your car has a
pointer or arrow cast into the webbing of the face. This should be
aligned with the mark on the head behind the gear. When the cam is in
that position, both valves are closed for the #1 cylinder. If the crank
and cam shafts are aligned accurately on their respective marks, there
can't be any phase error (180-deg) between them. Unlike older cars with
a mechanical distributor, the ignition system on your car fires the
plugs on every revolution of the crank because it gets it's timing from
the crank sensor not the cam shaft. The fuel injectors get their timing
from the cam shaft sensor. It doesn't affect the engine performance to
have the plugs firing on the top of the exhaust strokes in addition to
the compression strokes. I've wondered if the plugs wear a little faster
though.
Be sure to keep the belt taught on the forward (straight) side before
releasing the tensioner. This will insure that the belt won't skip on
either gear when the engine is started. It's best to crank the engine a
few turns without starting it, so the belt can seat properly. You can do
this on your Tracer by holding the gas pedal all the way to the floor
before and while you turn the key. The car's ignition system is designed
not to fire the plugs in this situation. It's a feature for clearing a
flooded engine. Did you also change the water pump? This would be a good
time to do it. I would also change the belt tensioner if it's never been
done. >> Stay informed about: Timing belt again |
|
| Back to top |
|
| |
External
Since: Mar 17, 2006
Posts: 64
|
(Msg. 4) Posted: Tue Nov 14, 2006 1:14 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
gjtms wrote:
> Here is another about my timing belt. 91 tracer with the 1.9 motor. How am
> I sure that the cam gear is set to TDC on #1? Can it be 180 out when the
> marks are aligned? I plan to use a compression gauge on #1 to set the crank
> on TDC. Any ideas or info?
Technically speaking, the cam shaft doesn't have a TDC position. This
term applies to the crankshaft when the #1 piston is all the way up and
the valves are closed for that cylinder. The cam gear on your car has a
pointer or arrow cast into the webbing of the face. This should be
aligned with the mark on the head behind the gear. When the cam is in
that position, both valves are closed for the #1 cylinder. If the crank
and cam shafts are aligned accurately on their respective marks, there
can't be any phase error (180-deg) between them. Unlike older cars with
a mechanical distributor, the ignition system on your car fires the
plugs on every revolution of the crank because it gets it's timing from
the crank sensor not the cam shaft. The fuel injectors get their timing
from the cam shaft sensor. It doesn't affect the engine performance to
have the plugs firing on the top of the exhaust strokes in addition to
the compression strokes. I've wondered if the plugs wear a little faster
though.
Be sure to keep the belt taught on the forward (straight) side before
releasing the tensioner. This will insure that the belt won't skip on
either gear when the engine is started. It's best to crank the engine a
few turns without starting it, so the belt can seat properly. You can do
this on your Tracer by holding the gas pedal all the way to the floor
before and while you turn the key. The car's ignition system is designed
not to fire the plugs in this situation. It's a feature for clearing a
flooded engine. Did you also change the water pump? This would be a good
time to do it. I would also change the belt tensioner if it's never been
done. >> Stay informed about: Timing belt again |
|
| Back to top |
|
| |
External
Since: Mar 17, 2006
Posts: 64
|
(Msg. 5) Posted: Tue Nov 14, 2006 1:14 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
gjtms wrote:
> Here is another about my timing belt. 91 tracer with the 1.9 motor. How am
> I sure that the cam gear is set to TDC on #1? Can it be 180 out when the
> marks are aligned? I plan to use a compression gauge on #1 to set the crank
> on TDC. Any ideas or info?
Technically speaking, the cam shaft doesn't have a TDC position. This
term applies to the crankshaft when the #1 piston is all the way up and
the valves are closed for that cylinder. The cam gear on your car has a
pointer or arrow cast into the webbing of the face. This should be
aligned with the mark on the head behind the gear. When the cam is in
that position, both valves are closed for the #1 cylinder. If the crank
and cam shafts are aligned accurately on their respective marks, there
can't be any phase error (180-deg) between them. Unlike older cars with
a mechanical distributor, the ignition system on your car fires the
plugs on every revolution of the crank because it gets it's timing from
the crank sensor not the cam shaft. The fuel injectors get their timing
from the cam shaft sensor. It doesn't affect the engine performance to
have the plugs firing on the top of the exhaust strokes in addition to
the compression strokes. I've wondered if the plugs wear a little faster
though.
Be sure to keep the belt taught on the forward (straight) side before
releasing the tensioner. This will insure that the belt won't skip on
either gear when the engine is started. It's best to crank the engine a
few turns without starting it, so the belt can seat properly. You can do
this on your Tracer by holding the gas pedal all the way to the floor
before and while you turn the key. The car's ignition system is designed
not to fire the plugs in this situation. It's a feature for clearing a
flooded engine. Did you also change the water pump? This would be a good
time to do it. I would also change the belt tensioner if it's never been
done. >> Stay informed about: Timing belt again |
|
| Back to top |
|
| |
External
Since: Mar 17, 2006
Posts: 64
|
(Msg. 6) Posted: Tue Nov 14, 2006 1:14 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
gjtms wrote:
> Here is another about my timing belt. 91 tracer with the 1.9 motor. How am
> I sure that the cam gear is set to TDC on #1? Can it be 180 out when the
> marks are aligned? I plan to use a compression gauge on #1 to set the crank
> on TDC. Any ideas or info?
Technically speaking, the cam shaft doesn't have a TDC position. This
term applies to the crankshaft when the #1 piston is all the way up and
the valves are closed for that cylinder. The cam gear on your car has a
pointer or arrow cast into the webbing of the face. This should be
aligned with the mark on the head behind the gear. When the cam is in
that position, both valves are closed for the #1 cylinder. If the crank
and cam shafts are aligned accurately on their respective marks, there
can't be any phase error (180-deg) between them. Unlike older cars with
a mechanical distributor, the ignition system on your car fires the
plugs on every revolution of the crank because it gets it's timing from
the crank sensor not the cam shaft. The fuel injectors get their timing
from the cam shaft sensor. It doesn't affect the engine performance to
have the plugs firing on the top of the exhaust strokes in addition to
the compression strokes. I've wondered if the plugs wear a little faster
though.
Be sure to keep the belt taught on the forward (straight) side before
releasing the tensioner. This will insure that the belt won't skip on
either gear when the engine is started. It's best to crank the engine a
few turns without starting it, so the belt can seat properly. You can do
this on your Tracer by holding the gas pedal all the way to the floor
before and while you turn the key. The car's ignition system is designed
not to fire the plugs in this situation. It's a feature for clearing a
flooded engine. Did you also change the water pump? This would be a good
time to do it. I would also change the belt tensioner if it's never been
done. >> Stay informed about: Timing belt again |
|
| Back to top |
|
| |
External
Since: Nov 21, 2004
Posts: 69
|
(Msg. 7) Posted: Tue Nov 14, 2006 1:14 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
"Fordfan" <Fordfan DeleteThis @bluesky.net> wrote in message
news:QL86h.2748$bj1.2560@trndny05...
> gjtms wrote:
>
>> Here is another about my timing belt. 91 tracer with the 1.9 motor. How
>> am I sure that the cam gear is set to TDC on #1? Can it be 180 out when
>> the marks are aligned? I plan to use a compression gauge on #1 to set
>> the crank on TDC. Any ideas or info?
>
> Technically speaking, the cam shaft doesn't have a TDC position. This term
> applies to the crankshaft when the #1 piston is all the way up and the
> valves are closed for that cylinder. The cam gear on your car has a
> pointer or arrow cast into the webbing of the face. This should be aligned
> with the mark on the head behind the gear. When the cam is in that
> position, both valves are closed for the #1 cylinder. If the crank and cam
> shafts are aligned accurately on their respective marks, there can't be
> any phase error (180-deg) between them. Unlike older cars with a
> mechanical distributor, the ignition system on your car fires the plugs on
> every revolution of the crank because it gets it's timing from the crank
> sensor not the cam shaft. The fuel injectors get their timing from the cam
> shaft sensor. It doesn't affect the engine performance to have the plugs
> firing on the top of the exhaust strokes in addition to the compression
> strokes. I've wondered if the plugs wear a little faster though.
>
> Be sure to keep the belt taught on the forward (straight) side before
> releasing the tensioner. This will insure that the belt won't skip on
> either gear when the engine is started. It's best to crank the engine a
> few turns without starting it, so the belt can seat properly. You can do
> this on your Tracer by holding the gas pedal all the way to the floor
> before and while you turn the key. The car's ignition system is designed
> not to fire the plugs in this situation. It's a feature for clearing a
> flooded engine.
Holding the throttle wide open while cranking shuts down the fuel injectors
and not the ignition system. The engine will start if any residual fuel is
left in the intake or cylinders.
Bob
> Did you also change the water pump? This would be a good time to do it. I
> would also change the belt tensioner if it's never been done. >> Stay informed about: Timing belt again |
|
| Back to top |
|
| |
External
Since: Nov 21, 2004
Posts: 69
|
(Msg. 8) Posted: Tue Nov 14, 2006 1:14 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
"Fordfan" <Fordfan.RemoveThis@bluesky.net> wrote in message
news:QL86h.2748$bj1.2560@trndny05...
> gjtms wrote:
>
>> Here is another about my timing belt. 91 tracer with the 1.9 motor. How
>> am I sure that the cam gear is set to TDC on #1? Can it be 180 out when
>> the marks are aligned? I plan to use a compression gauge on #1 to set
>> the crank on TDC. Any ideas or info?
>
> Technically speaking, the cam shaft doesn't have a TDC position. This term
> applies to the crankshaft when the #1 piston is all the way up and the
> valves are closed for that cylinder. The cam gear on your car has a
> pointer or arrow cast into the webbing of the face. This should be aligned
> with the mark on the head behind the gear. When the cam is in that
> position, both valves are closed for the #1 cylinder. If the crank and cam
> shafts are aligned accurately on their respective marks, there can't be
> any phase error (180-deg) between them. Unlike older cars with a
> mechanical distributor, the ignition system on your car fires the plugs on
> every revolution of the crank because it gets it's timing from the crank
> sensor not the cam shaft. The fuel injectors get their timing from the cam
> shaft sensor. It doesn't affect the engine performance to have the plugs
> firing on the top of the exhaust strokes in addition to the compression
> strokes. I've wondered if the plugs wear a little faster though.
>
> Be sure to keep the belt taught on the forward (straight) side before
> releasing the tensioner. This will insure that the belt won't skip on
> either gear when the engine is started. It's best to crank the engine a
> few turns without starting it, so the belt can seat properly. You can do
> this on your Tracer by holding the gas pedal all the way to the floor
> before and while you turn the key. The car's ignition system is designed
> not to fire the plugs in this situation. It's a feature for clearing a
> flooded engine.
Holding the throttle wide open while cranking shuts down the fuel injectors
and not the ignition system. The engine will start if any residual fuel is
left in the intake or cylinders.
Bob
> Did you also change the water pump? This would be a good time to do it. I
> would also change the belt tensioner if it's never been done. >> Stay informed about: Timing belt again |
|
| Back to top |
|
| |
External
Since: Nov 21, 2004
Posts: 69
|
(Msg. 9) Posted: Tue Nov 14, 2006 1:14 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
"Fordfan" <Fordfan DeleteThis @bluesky.net> wrote in message
news:QL86h.2748$bj1.2560@trndny05...
> gjtms wrote:
>
>> Here is another about my timing belt. 91 tracer with the 1.9 motor. How
>> am I sure that the cam gear is set to TDC on #1? Can it be 180 out when
>> the marks are aligned? I plan to use a compression gauge on #1 to set
>> the crank on TDC. Any ideas or info?
>
> Technically speaking, the cam shaft doesn't have a TDC position. This term
> applies to the crankshaft when the #1 piston is all the way up and the
> valves are closed for that cylinder. The cam gear on your car has a
> pointer or arrow cast into the webbing of the face. This should be aligned
> with the mark on the head behind the gear. When the cam is in that
> position, both valves are closed for the #1 cylinder. If the crank and cam
> shafts are aligned accurately on their respective marks, there can't be
> any phase error (180-deg) between them. Unlike older cars with a
> mechanical distributor, the ignition system on your car fires the plugs on
> every revolution of the crank because it gets it's timing from the crank
> sensor not the cam shaft. The fuel injectors get their timing from the cam
> shaft sensor. It doesn't affect the engine performance to have the plugs
> firing on the top of the exhaust strokes in addition to the compression
> strokes. I've wondered if the plugs wear a little faster though.
>
> Be sure to keep the belt taught on the forward (straight) side before
> releasing the tensioner. This will insure that the belt won't skip on
> either gear when the engine is started. It's best to crank the engine a
> few turns without starting it, so the belt can seat properly. You can do
> this on your Tracer by holding the gas pedal all the way to the floor
> before and while you turn the key. The car's ignition system is designed
> not to fire the plugs in this situation. It's a feature for clearing a
> flooded engine.
Holding the throttle wide open while cranking shuts down the fuel injectors
and not the ignition system. The engine will start if any residual fuel is
left in the intake or cylinders.
Bob
> Did you also change the water pump? This would be a good time to do it. I
> would also change the belt tensioner if it's never been done. >> Stay informed about: Timing belt again |
|
| Back to top |
|
| |
External
Since: Nov 21, 2004
Posts: 69
|
(Msg. 10) Posted: Tue Nov 14, 2006 1:14 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
"Fordfan" <Fordfan.RemoveThis@bluesky.net> wrote in message
news:QL86h.2748$bj1.2560@trndny05...
> gjtms wrote:
>
>> Here is another about my timing belt. 91 tracer with the 1.9 motor. How
>> am I sure that the cam gear is set to TDC on #1? Can it be 180 out when
>> the marks are aligned? I plan to use a compression gauge on #1 to set
>> the crank on TDC. Any ideas or info?
>
> Technically speaking, the cam shaft doesn't have a TDC position. This term
> applies to the crankshaft when the #1 piston is all the way up and the
> valves are closed for that cylinder. The cam gear on your car has a
> pointer or arrow cast into the webbing of the face. This should be aligned
> with the mark on the head behind the gear. When the cam is in that
> position, both valves are closed for the #1 cylinder. If the crank and cam
> shafts are aligned accurately on their respective marks, there can't be
> any phase error (180-deg) between them. Unlike older cars with a
> mechanical distributor, the ignition system on your car fires the plugs on
> every revolution of the crank because it gets it's timing from the crank
> sensor not the cam shaft. The fuel injectors get their timing from the cam
> shaft sensor. It doesn't affect the engine performance to have the plugs
> firing on the top of the exhaust strokes in addition to the compression
> strokes. I've wondered if the plugs wear a little faster though.
>
> Be sure to keep the belt taught on the forward (straight) side before
> releasing the tensioner. This will insure that the belt won't skip on
> either gear when the engine is started. It's best to crank the engine a
> few turns without starting it, so the belt can seat properly. You can do
> this on your Tracer by holding the gas pedal all the way to the floor
> before and while you turn the key. The car's ignition system is designed
> not to fire the plugs in this situation. It's a feature for clearing a
> flooded engine.
Holding the throttle wide open while cranking shuts down the fuel injectors
and not the ignition system. The engine will start if any residual fuel is
left in the intake or cylinders.
Bob
> Did you also change the water pump? This would be a good time to do it. I
> would also change the belt tensioner if it's never been done. >> Stay informed about: Timing belt again |
|
| Back to top |
|
| |
External
Since: Nov 21, 2004
Posts: 69
|
(Msg. 11) Posted: Tue Nov 14, 2006 1:14 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
"Fordfan" <Fordfan RemoveThis @bluesky.net> wrote in message
news:QL86h.2748$bj1.2560@trndny05...
> gjtms wrote:
>
>> Here is another about my timing belt. 91 tracer with the 1.9 motor. How
>> am I sure that the cam gear is set to TDC on #1? Can it be 180 out when
>> the marks are aligned? I plan to use a compression gauge on #1 to set
>> the crank on TDC. Any ideas or info?
>
> Technically speaking, the cam shaft doesn't have a TDC position. This term
> applies to the crankshaft when the #1 piston is all the way up and the
> valves are closed for that cylinder. The cam gear on your car has a
> pointer or arrow cast into the webbing of the face. This should be aligned
> with the mark on the head behind the gear. When the cam is in that
> position, both valves are closed for the #1 cylinder. If the crank and cam
> shafts are aligned accurately on their respective marks, there can't be
> any phase error (180-deg) between them. Unlike older cars with a
> mechanical distributor, the ignition system on your car fires the plugs on
> every revolution of the crank because it gets it's timing from the crank
> sensor not the cam shaft. The fuel injectors get their timing from the cam
> shaft sensor. It doesn't affect the engine performance to have the plugs
> firing on the top of the exhaust strokes in addition to the compression
> strokes. I've wondered if the plugs wear a little faster though.
>
> Be sure to keep the belt taught on the forward (straight) side before
> releasing the tensioner. This will insure that the belt won't skip on
> either gear when the engine is started. It's best to crank the engine a
> few turns without starting it, so the belt can seat properly. You can do
> this on your Tracer by holding the gas pedal all the way to the floor
> before and while you turn the key. The car's ignition system is designed
> not to fire the plugs in this situation. It's a feature for clearing a
> flooded engine.
Holding the throttle wide open while cranking shuts down the fuel injectors
and not the ignition system. The engine will start if any residual fuel is
left in the intake or cylinders.
Bob
> Did you also change the water pump? This would be a good time to do it. I
> would also change the belt tensioner if it's never been done. >> Stay informed about: Timing belt again |
|
| Back to top |
|
| |
External
Since: Mar 17, 2006
Posts: 64
|
(Msg. 12) Posted: Wed Nov 15, 2006 1:13 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
Bob wrote:
> "Fordfan" <Fordfan.DeleteThis@bluesky.net> wrote in message
> news:QL86h.2748$bj1.2560@trndny05...
>
>>gjtms wrote:
>>
>>
>>>Here is another about my timing belt. 91 tracer with the 1.9 motor. How
>>>am I sure that the cam gear is set to TDC on #1? Can it be 180 out when
>>>the marks are aligned? I plan to use a compression gauge on #1 to set
>>>the crank on TDC. Any ideas or info?
>>
>>Technically speaking, the cam shaft doesn't have a TDC position. This term
>>applies to the crankshaft when the #1 piston is all the way up and the
>>valves are closed for that cylinder. The cam gear on your car has a
>>pointer or arrow cast into the webbing of the face. This should be aligned
>>with the mark on the head behind the gear. When the cam is in that
>>position, both valves are closed for the #1 cylinder. If the crank and cam
>>shafts are aligned accurately on their respective marks, there can't be
>>any phase error (180-deg) between them. Unlike older cars with a
>>mechanical distributor, the ignition system on your car fires the plugs on
>>every revolution of the crank because it gets it's timing from the crank
>>sensor not the cam shaft. The fuel injectors get their timing from the cam
>>shaft sensor. It doesn't affect the engine performance to have the plugs
>>firing on the top of the exhaust strokes in addition to the compression
>>strokes. I've wondered if the plugs wear a little faster though.
>>
>>Be sure to keep the belt taught on the forward (straight) side before
>>releasing the tensioner. This will insure that the belt won't skip on
>>either gear when the engine is started. It's best to crank the engine a
>>few turns without starting it, so the belt can seat properly. You can do
>>this on your Tracer by holding the gas pedal all the way to the floor
>>before and while you turn the key. The car's ignition system is designed
>>not to fire the plugs in this situation. It's a feature for clearing a
>>flooded engine.
>
>
> Holding the throttle wide open while cranking shuts down the fuel injectors
> and not the ignition system. The engine will start if any residual fuel is
> left in the intake or cylinders.
> Bob
Thanks for the correction. I don't know what I was thinking when I said
the ignition system is turned off.  >> Stay informed about: Timing belt again |
|
| Back to top |
|
| |
External
Since: Mar 17, 2006
Posts: 64
|
(Msg. 13) Posted: Wed Nov 15, 2006 1:13 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
Bob wrote:
> "Fordfan" <Fordfan DeleteThis @bluesky.net> wrote in message
> news:QL86h.2748$bj1.2560@trndny05...
>
>>gjtms wrote:
>>
>>
>>>Here is another about my timing belt. 91 tracer with the 1.9 motor. How
>>>am I sure that the cam gear is set to TDC on #1? Can it be 180 out when
>>>the marks are aligned? I plan to use a compression gauge on #1 to set
>>>the crank on TDC. Any ideas or info?
>>
>>Technically speaking, the cam shaft doesn't have a TDC position. This term
>>applies to the crankshaft when the #1 piston is all the way up and the
>>valves are closed for that cylinder. The cam gear on your car has a
>>pointer or arrow cast into the webbing of the face. This should be aligned
>>with the mark on the head behind the gear. When the cam is in that
>>position, both valves are closed for the #1 cylinder. If the crank and cam
>>shafts are aligned accurately on their respective marks, there can't be
>>any phase error (180-deg) between them. Unlike older cars with a
>>mechanical distributor, the ignition system on your car fires the plugs on
>>every revolution of the crank because it gets it's timing from the crank
>>sensor not the cam shaft. The fuel injectors get their timing from the cam
>>shaft sensor. It doesn't affect the engine performance to have the plugs
>>firing on the top of the exhaust strokes in addition to the compression
>>strokes. I've wondered if the plugs wear a little faster though.
>>
>>Be sure to keep the belt taught on the forward (straight) side before
>>releasing the tensioner. This will insure that the belt won't skip on
>>either gear when the engine is started. It's best to crank the engine a
>>few turns without starting it, so the belt can seat properly. You can do
>>this on your Tracer by holding the gas pedal all the way to the floor
>>before and while you turn the key. The car's ignition system is designed
>>not to fire the plugs in this situation. It's a feature for clearing a
>>flooded engine.
>
>
> Holding the throttle wide open while cranking shuts down the fuel injectors
> and not the ignition system. The engine will start if any residual fuel is
> left in the intake or cylinders.
> Bob
Thanks for the correction. I don't know what I was thinking when I said
the ignition system is turned off. >> Stay informed about: Timing belt again |
|
| Back to top |
|
| |
External
Since: Mar 17, 2006
Posts: 64
|
(Msg. 14) Posted: Wed Nov 15, 2006 1:13 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
Bob wrote:
> "Fordfan" <Fordfan DeleteThis @bluesky.net> wrote in message
> news:QL86h.2748$bj1.2560@trndny05...
>
>>gjtms wrote:
>>
>>
>>>Here is another about my timing belt. 91 tracer with the 1.9 motor. How
>>>am I sure that the cam gear is set to TDC on #1? Can it be 180 out when
>>>the marks are aligned? I plan to use a compression gauge on #1 to set
>>>the crank on TDC. Any ideas or info?
>>
>>Technically speaking, the cam shaft doesn't have a TDC position. This term
>>applies to the crankshaft when the #1 piston is all the way up and the
>>valves are closed for that cylinder. The cam gear on your car has a
>>pointer or arrow cast into the webbing of the face. This should be aligned
>>with the mark on the head behind the gear. When the cam is in that
>>position, both valves are closed for the #1 cylinder. If the crank and cam
>>shafts are aligned accurately on their respective marks, there can't be
>>any phase error (180-deg) between them. Unlike older cars with a
>>mechanical distributor, the ignition system on your car fires the plugs on
>>every revolution of the crank because it gets it's timing from the crank
>>sensor not the cam shaft. The fuel injectors get their timing from the cam
>>shaft sensor. It doesn't affect the engine performance to have the plugs
>>firing on the top of the exhaust strokes in addition to the compression
>>strokes. I've wondered if the plugs wear a little faster though.
>>
>>Be sure to keep the belt taught on the forward (straight) side before
>>releasing the tensioner. This will insure that the belt won't skip on
>>either gear when the engine is started. It's best to crank the engine a
>>few turns without starting it, so the belt can seat properly. You can do
>>this on your Tracer by holding the gas pedal all the way to the floor
>>before and while you turn the key. The car's ignition system is designed
>>not to fire the plugs in this situation. It's a feature for clearing a
>>flooded engine.
>
>
> Holding the throttle wide open while cranking shuts down the fuel injectors
> and not the ignition system. The engine will start if any residual fuel is
> left in the intake or cylinders.
> Bob
Thanks for the correction. I don't know what I was thinking when I said
the ignition system is turned off. >> Stay informed about: Timing belt again |
|
| Back to top |
|
| |
External
Since: Mar 17, 2006
Posts: 64
|
(Msg. 15) Posted: Wed Nov 15, 2006 1:13 am
Post subject: Re: Timing belt again [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
|
|
|
Bob wrote:
> "Fordfan" <Fordfan.DeleteThis@bluesky.net> wrote in message
> news:QL86h.2748$bj1.2560@trndny05...
>
>>gjtms wrote:
>>
>>
>>>Here is another about my timing belt. 91 tracer with the 1.9 motor. How
>>>am I sure that the cam gear is set to TDC on #1? Can it be 180 out when
>>>the marks are aligned? I plan to use a compression gauge on #1 to set
>>>the crank on TDC. Any ideas or info?
>>
>>Technically speaking, the cam shaft doesn't have a TDC position. This term
>>applies to the crankshaft when the #1 piston is all the way up and the
>>valves are closed for that cylinder. The cam gear on your car has a
>>pointer or arrow cast into the webbing of the face. This should be aligned
>>with the mark on the head behind the gear. When the cam is in that
>>position, both valves are closed for the #1 cylinder. If the crank and cam
>>shafts are aligned accurately on their respective marks, there can't be
>>any phase error (180-deg) between them. Unlike older cars with a
>>mechanical distributor, the ignition system on your car fires the plugs on
>>every revolution of the crank because it gets it's timing from the crank
>>sensor not the cam shaft. The fuel injectors get their timing from the cam
>>shaft sensor. It doesn't affect the engine performance to have the plugs
>>firing on the top of the exhaust strokes in addition to the compression
>>strokes. I've wondered if the plugs wear a little faster though.
>>
>>Be sure to keep the belt taught on the forward (straight) side before
>>releasing the tensioner. This will insure that the belt won't skip on
>>either gear when the engine is started. It's best to crank the engine a
>>few turns without starting it, so the belt can seat properly. You can do
>>this on your Tracer by holding the gas pedal all the way to the floor
>>before and while you turn the key. The car's ignition system is designed
>>not to fire the plugs in this situation. It's a feature for clearing a
>>flooded engine.
>
>
> Holding the throttle wide open while cranking shuts down the fuel injectors
> and not the ignition system. The engine will start if any residual fuel is
> left in the intake or cylinders.
> Bob
Thanks for the correction. I don't know what I was thinking when I said
the ignition system is turned off. >> Stay informed about: Timing belt again |
|
| Back to top |
|
| |
| Related Topics: | timing belt question - I have a 91 tracer with the 1.9 engine. The timing belt snapped. Is this engine freewheeling, or do you think I trashed the valves? Thanks
98 contour timing belt - I replace my water pump and timing belt. After about a month the timing belt was shreaded. I replaced the belt and the tensioner and idler pullies. After two days the belt was slideing off the cam shaft cogs. I have read on the net where others have..
88 ford escort problem (timing belt) - Is there any "quick and easy" way to replace the timing belt on an 88 ford escort (1.9L engine). Mine recently broke and when looking at it there is very little room at the bottom to fit the new belt in. can anyone give me any tips that woul...
89 festiva jumped timing - yes, my 89 ford festive jumped timing. The mechanic said the crank pully slipped causing the problem, the belt did not break..... Well, I got it back and it doesnt have any power. Did this timing slip casuse any permanent damage? Or maybe its just no...
1998 Ford Contour GL timing - Does anybody know how to time the '98 Ford Contour that has a spring-loaded camshaft gear? Thanks, |
|
You can post new topics in this forum
You can reply to topics in this forum
You can edit your posts in this forum
You can delete your posts in this forum
You can vote in polls in this forum
|
|
|
|
|
|
|
FAQ
Profile
Private Messages
Log in
