Oil Burning?
Thread Starter
Senior Member
Joined: Jul 2009
Posts: 392
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From: Northern Suburb of Indianapolis
CLS55
Oil Burning?
Hey all, if I drive any reasonable distance I am smelling what seems to be oil burning...anything to look for here? I'll be taking my intake and cover off next weekend...just wanted to see if any of you ran into something simliar...sure hoping its not a leaky head or anything....
Seems to be recent don't remember smelling this before...
Seems to be recent don't remember smelling this before...
Senior Member
Joined: Jul 2008
Posts: 353
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From: Middle TN
03 C32 AMG
Did you do an oil change recently? I know this happened to me when I did my oil change and did not change the crush washer. Leaking oil and had that burning oil smell.
Those washers supposedly one time use only.
Those washers supposedly one time use only.
Thread Starter
Senior Member
Joined: Jul 2009
Posts: 392
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From: Northern Suburb of Indianapolis
CLS55
Nah, no oil change. I didn't notice it until I was running idle and opened my car door...I'm guessing the smell is burning oil...sure think it is anyway.
it happens to me before, take a look to the back of the crank pulley there is a gasket that was leaking oil in my car after i installed my 185 pulley. put your hand below the crank pulley and see if there is a leaking.
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02 C32 AMG
testnight, check for oil leaking near the crank pulley. also, see if the crank pulley wobbles at all. it should be spinning relatively smoothly (with no wobble)
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Joined: Jul 2006
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From: Maine
Not an AMG :(
Hey all, if I drive any reasonable distance I am smelling what seems to be oil burning...anything to look for here? I'll be taking my intake and cover off next weekend...just wanted to see if any of you ran into something simliar...sure hoping its not a leaky head or anything....
Seems to be recent don't remember smelling this before...
Seems to be recent don't remember smelling this before...
However, the most common cause of a burning oil smell is due to leaking of the gasket on the recirculation cover sitting on top of the valve covers (see red arrows).
Oil seeps out (not that much) and drips onto the exhaust manifolds and voila - burning of oil once the manifolds get hot. Remove the airboxes and look to see if the exhaust manifolds / headers have oil stains.
Unfortunately, a replacement gasket does not exist; however, you can easily remedy this using gasket maker.
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From: murfreesboro,tn
2003 porsche 996 turbo
also check around your oil filter. if the o rings have gotten hard or were installed improperly they will leak causing the oil to drip down on the belt and be burned.
Thread Starter
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From: Northern Suburb of Indianapolis
CLS55
Its coming from the front of the car. I see it puddling just underneath and the crankshaft pulley is wobbling a bit (it was just installed about two weeks ago). Could the seal have gone and caused the issue with the pulley?
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02 C32 AMG
i installed my first pulley with a buddy. we used an old crank bolt. after a while, i noticed there was a slight wobble. i didnt think anything of it. after a while....same problem.....except i completely blew it and lost several quarts of oil.
the wobbling rubs up against the seal, weakening it, and if persistent contact between the seal and pulley continue, it could cause this seal to blow. i've had my rear main seal fixed/replaced (thankfully under warranty)
was there a wobble when initially installed? was a new crank bolt used? was it torqued 270 ft/lbs + 90 degree turn?
oh....and the six little screws on the inside of the pulley....are those all equally tightened/torqued?
Thread Starter
Senior Member
Joined: Jul 2009
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From: Northern Suburb of Indianapolis
CLS55
yes. oh dear.....is this about the time you first noticed the oil burning smell?
i installed my first pulley with a buddy. we used an old crank bolt. after a while, i noticed there was a slight wobble. i didnt think anything of it. after a while....same problem.....except i completely blew it and lost several quarts of oil.
the wobbling rubs up against the seal, weakening it, and if persistent contact between the seal and pulley continue, it could cause this seal to blow. i've had my rear main seal fixed/replaced (thankfully under warranty)
was there a wobble when initially installed? was a new crank bolt used? was it torqued 270 ft/lbs + 90 degree turn?
oh....and the six little screws on the inside of the pulley....are those all equally tightened/torqued?
i installed my first pulley with a buddy. we used an old crank bolt. after a while, i noticed there was a slight wobble. i didnt think anything of it. after a while....same problem.....except i completely blew it and lost several quarts of oil.
the wobbling rubs up against the seal, weakening it, and if persistent contact between the seal and pulley continue, it could cause this seal to blow. i've had my rear main seal fixed/replaced (thankfully under warranty)
was there a wobble when initially installed? was a new crank bolt used? was it torqued 270 ft/lbs + 90 degree turn?
oh....and the six little screws on the inside of the pulley....are those all equally tightened/torqued?
Member
Joined: Feb 2009
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From: Denver, CO
C32
Good luck with that mess. Hopefully they will rule in your favor and take care of you. Thank you for posting this info. I’m soon to do my install and will make double sure that there is no pulley wobbling before I take off.
Anyone know the torque specs for the multiple bolts in the crank?
Anyone know the torque specs for the multiple bolts in the crank?
Senior Member
Joined: Jul 2008
Posts: 353
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From: Middle TN
03 C32 AMG
02C32, you shouldn't have any wobbling with the used pulley I sold you. Just make sure as Jturkel mentioned to use a new crank bolt that you can purchase at your local MB dealer for approx. $7.
Sorry, didn't mean to hijack this thread.
Sorry, didn't mean to hijack this thread.
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Joined: Oct 2006
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02 C32 AMG
check with Jake or Jerry at eurocharged for the tq specs on those things. you DONT want to break them. THAT would be bad.
