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99trooper

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Since: Mar 24, 2004
Posts: 36



(Msg. 1) Posted: Mon Oct 03, 2005 11:18 am
Post subject: TDC 99 Sonata help!!!
Archived from groups: alt>autos>hyundai (more info?)
Hello,


99 sonata v6 2.5
I do have a problem.... Being that my cams are directly opposite of TDC
and my Timing mark on the crank is directly opposite of the TDC mark as
well.... HOW do I get the timing alingned?

How do I know when the crank is at TDC? Even if it is at the mark, it
could still be wrong (not at TDC..) Should I take the plug out of # 1 to
see when the cylinder comes to the top? I am lost now (doesn't the crank
make 2 revolutions per each cam gear?).....

I feel sick over this now!!!


THANKS FOR ANY HELP!

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green99

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Since: Sep 26, 2005
Posts: 2



(Msg. 2) Posted: Mon Oct 03, 2005 11:18 am
Post subject: Re: TDC 99 Sonata help!!! [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
When #1 Cylinder is at TDC, shouldn't the intake valve(s) be wide open,
and the exhaust valve(s) closed? Or I guess maybe that should be the
other way around. Just a thought.

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99trooper

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Since: Mar 24, 2004
Posts: 36



(Msg. 3) Posted: Mon Oct 03, 2005 12:00 pm
Post subject: Re: TDC 99 Sonata help!!! [Login to view extended thread Info.]
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Ok, I'm thinking of this now...

TDC on the crankshaft is TDC on cylinder 1 ALL the time the mark on the
shaft is in line with the TDC mark on the engine right? (the shaft is 1
piece that for every revolution pushes the #1 cylinder to the top when it
is on the TDC timing mark- on the CRANKSHAFT).

The dillema is the CAMSHAFT gears that I have to line the Timing marks on
once the CRANKSHAFT is at TDC timing... What can I do?

Thanks
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hyundaitech2

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Since: Oct 09, 2004
Posts: 1966



(Msg. 4) Posted: Mon Oct 03, 2005 1:22 pm
Post subject: Re: TDC 99 Sonata help!!! [Login to view extended thread Info.]
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Just line up the timing marks on all the sprockets to the marks on the
heads/block.
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99trooper

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Since: Mar 24, 2004
Posts: 36



(Msg. 5) Posted: Mon Oct 03, 2005 1:59 pm
Post subject: Re: TDC 99 Sonata help!!! [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
There is no timing belt on now....Don't I have to turn the CRANKSHAFT back
(counter clockwise) a couple teeth, and then move the CAMSHAFT clockwise
the same amount of teeth? Or can I move any of them freely without
worring about hitting the valves to the cylinder while lining up the marks
(it is pretty far out now.. the cam timing marks are on the opposite side
of the cam gear now, and the crank mark is on the opposite side of that
gear as well.)
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nothermark

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Since: Jul 21, 2003
Posts: 69



(Msg. 6) Posted: Mon Oct 03, 2005 7:55 pm
Post subject: Re: TDC 99 Sonata help!!! [Login to view extended thread Info.]
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On Mon, 03 Oct 2005 13:59:56 -0400, "99trooper"
<thkamentz.RemoveThis@netscape.net> wrote:

>There is no timing belt on now....Don't I have to turn the CRANKSHAFT back
>(counter clockwise) a couple teeth, and then move the CAMSHAFT clockwise
>the same amount of teeth? Or can I move any of them freely without
>worring about hitting the valves to the cylinder while lining up the marks
>(it is pretty far out now.. the cam timing marks are on the opposite side
>of the cam gear now, and the crank mark is on the opposite side of that
>gear as well.)

sounds like you do it by feel. move the crank some, if it binds then
rotate the cams to clear the offending valves. repeat unitl they are
all lined up.
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hyundaitech2

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Since: Oct 09, 2004
Posts: 1966



(Msg. 7) Posted: Tue Oct 04, 2005 12:35 pm
Post subject: Re: TDC 99 Sonata help!!! [Login to view extended thread Info.]
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Do make sure you don't put undue force on anything. It should be easy to
tell if something bad is happening. It'll get nearly impossible to turn
very quickly.
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Dan

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Since: May 18, 2005
Posts: 4



(Msg. 8) Posted: Thu Oct 06, 2005 2:55 pm
Post subject: Re: TDC 99 Sonata help!!! [Login to view extended thread Info.]
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green99 DeleteThis @gmail.com wrote:
> When #1 Cylinder is at TDC, shouldn't the intake valve(s) be wide open,
> and the exhaust valve(s) closed? Or I guess maybe that should be the
> other way around. Just a thought.
>
At TDC, both valves should be closed. TDC is the point where the highest
compression would take place if the cylinder did not fire. Firing
usually occurs a few degrees Before TDC (BTDC).
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