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Next: 95 Dakota 3.9Litre V6 running sluggish
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Since: Jul 25, 2005
Posts: 12
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(Msg. 1) Posted: Mon Jul 25, 2005 10:29 pm
Post subject: 1987 560 sel smoking problem
Archived from groups: alt>auto>mercedes (more info?)
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my vehicle has only 190 thou miles tons of power super clean BUT after
idling about 5 min it begins to smoke oil lightly then about 10 min
smoking pretty good so I take it out bout a quarter mile down the road and
no smoke I turn around punch it and im at about 90 in a hundred yards i
pull in the drive about 5 min later smokes back 8 min later lots of white
smoke now i press the gas tons of white smoke for 1 min then decreases to
none then i take it down the road again no smoke turn around come back
very fast no problem back in the drive 5 min later light blue smoke again.
NOW the thing is the car was bought yesterday it has sat in a heated garage
for 4 years and a divorce later and 1 year outside. basically the vehicle
has not been driven (but started and moved around slightly) for 5 years.
underneath the oil pan gasket seems to leak slightly on rear corner. I
changed oil to 10w40 and new filter and STP oil treatment. Trans fluid was
about a quart low seems fine. I just want to figure out some diagnostic
ideas other than my own. |
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External
Since: May 28, 2005
Posts: 85
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(Msg. 2) Posted: Mon Jul 25, 2005 10:29 pm
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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| Sounds like a head gasket failing and dumping oil and coolant into
combustion chamber.Also to consider is a crack in the head itself near
an exhaust valve.Oxygen sensor is probably screwed up at this point
also.
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>> Stay informed about: 1987 560 sel smoking problem |
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External
Since: Dec 08, 2003
Posts: 130
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(Msg. 3) Posted: Mon Jul 25, 2005 10:29 pm
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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Contrary to other (pessimistic) opinions I suggest you drive it (don't
hot rod it) a while and keep a log of fluid additions. Qt of oil at xxx
miles and date , added coolant miles & date, so you have a track of
what's going on with this engine. It could be (optimistic) that the
rings have gotten "lazy"; some longer drives will cure that.
I believe the motor's valve guide seals - the plastic seals around the
valve stems - may be worn out and need to be replaced. This can be done
without removing the cylinder heads - but wait until you log confirms
(i) excess oil use and (ii) no coolant loss. >> Stay informed about: 1987 560 sel smoking problem |
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External
Since: May 28, 2005
Posts: 85
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(Msg. 4) Posted: Mon Jul 25, 2005 10:29 pm
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
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Or just use a vacuum gauge if you have one.
Connect and if the needle fluctuates between 10 and 25 in./Hg. as the
engine speed increases will tell you that the head gasket is leaking.
If it vibrates excessively between 8 and 20 in./Hg at idle,this
indicates worn valve guides.
Park it!!! >> Stay informed about: 1987 560 sel smoking problem |
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Since: May 28, 2005
Posts: 85
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(Msg. 5) Posted: Mon Jul 25, 2005 10:29 pm
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
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Since: Aug 25, 2004
Posts: 141
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(Msg. 6) Posted: Mon Jul 25, 2005 11:55 pm
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
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news:ff6bfd45528af1a3aafa0addf5b114ee@localhost.talkaboutautos.com...
> my vehicle has only 190 thou miles tons of power super clean BUT after
> idling about 5 min it begins to smoke oil lightly then about 10 min
> smoking pretty good so I take it out bout a quarter mile down the road and
> no smoke I turn around punch it and im at about 90 in a hundred yards i
> pull in the drive about 5 min later smokes back 8 min later lots of white
> smoke now i press the gas tons of white smoke for 1 min then decreases to
> none then i take it down the road again no smoke turn around come back
> very fast no problem back in the drive 5 min later light blue smoke again.
> NOW the thing is the car was bought yesterday it has sat in a heated garage
> for 4 years and a divorce later and 1 year outside. basically the vehicle
> has not been driven (but started and moved around slightly) for 5 years.
> underneath the oil pan gasket seems to leak slightly on rear corner. I
> changed oil to 10w40 and new filter and STP oil treatment. Trans fluid was
> about a quart low seems fine. I just want to figure out some diagnostic
> ideas other than my own.
PARK the car >>NOW<<!
Looks like you've got a blown head gasket, do NOT turn the engine on, you might add a couple grand worth of damage, like I did. Tow
it to the nearest mech.
cp >> Stay informed about: 1987 560 sel smoking problem |
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Since: Aug 25, 2004
Posts: 141
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(Msg. 7) Posted: Tue Jul 26, 2005 12:55 am
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
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> Contrary to other (pessimistic) opinions I suggest you drive it (don't hot rod it) a while and keep a log of fluid additions. Qt
> of oil at xxx miles and date , added coolant miles & date, so you have a track of what's going on with this engine. It could be
> (optimistic) that the rings have gotten "lazy"; some longer drives will cure that.
>
> I believe the motor's valve guide seals - the plastic seals around the valve stems - may be worn out and need to be replaced. This
> can be done without removing the cylinder heads - but wait until you log confirms (i) excess oil use and (ii) no coolant loss.
What he SHOULD do is check the coolant and oil; if the coolant cloudy and the oil muddy (or cloudy) then it's time to stop. Best to
pay $50 and tow it and get it checked out before potentially causing 10 times as much damage.
cp >> Stay informed about: 1987 560 sel smoking problem |
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Since: Aug 25, 2004
Posts: 141
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(Msg. 8) Posted: Tue Jul 26, 2005 1:55 am
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
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Too complicated!
> Or just use a vacuum gauge if you have one.
> Connect and if the needle fluctuates between 10 and 25 in./Hg. as the
> engine speed increases will tell you that the head gasket is leaking.
>
> If it vibrates excessively between 8 and 20 in./Hg at idle,this
> indicates worn valve guides.
>
> Park it!!!
> >> Stay informed about: 1987 560 sel smoking problem |
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External
Since: Aug 25, 2004
Posts: 141
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(Msg. 9) Posted: Tue Jul 26, 2005 1:55 am
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
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> Not at all,and less time consuming than a fluid log! 5 minutes and your
yeh, 5 minutes if you knows what you is doing!
> done,so would that be pessimistic or optimistic? hah
I learned my lesson; had I not been too cheap to call a tow truck I would have saved myself $1500
cp >> Stay informed about: 1987 560 sel smoking problem |
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Since: Aug 03, 2004
Posts: 196
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(Msg. 10) Posted: Tue Jul 26, 2005 1:55 am
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
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On 2005-07-25 22:14:41 -0700, "cp" <asdf DeleteThis @asdf.com> said:
<snip>
> I learned my lesson; had I not been too cheap to call a tow truck I
> would have saved myself $1500
Ouch! Live and learn is the best we can hope for sometimes... >> Stay informed about: 1987 560 sel smoking problem |
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Since: Jul 25, 2005
Posts: 9
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(Msg. 11) Posted: Tue Jul 26, 2005 6:21 am
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
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*Sometimes not being driven is as hard on a car as rough driving.*
white smoke == gas not burning.
If the exhaust smells like anything BUT unburned fuel,
then consider something more serious. There might be another cause.
Per the earlier posting, the coolant/oil check is practical and simple.
If the results are positive (that is, if the engine is ill ),
then maybe a compression test is in order.
It would let you know something as well.
And not too expensive to get done.
But the Safest thing to do is hire a professional.
Some things are not meant for amateur sleuthing.
Especially if you don't have the tools
Take care of your car and it will take care of you. >> Stay informed about: 1987 560 sel smoking problem |
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Since: Jan 07, 2004
Posts: 226
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(Msg. 12) Posted: Tue Jul 26, 2005 8:58 am
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
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Since: Aug 25, 2004
Posts: 141
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(Msg. 13) Posted: Wed Jul 27, 2005 2:55 am
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
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Since: Aug 03, 2004
Posts: 196
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(Msg. 14) Posted: Thu Jul 28, 2005 10:05 am
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
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On 2005-07-26 06:21:59 -0700, "Cheesehead" <dplotusnotes.TakeThisOut@yahoo.com> said:
> *Sometimes not being driven is as hard on a car as rough driving.*
>
> white smoke == gas not burning
No! unburned fuel is black.
White is usually water or antifreeze. >> Stay informed about: 1987 560 sel smoking problem |
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Since: Jul 25, 2005
Posts: 12
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(Msg. 15) Posted: Thu Jul 28, 2005 9:59 pm
Post subject: Re: 1987 560 sel smoking problem [Login to view extended thread Info.]
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