XK8 / XKR ( X100 ) 1996 - 2006

puff of smoke from cam cover

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Old Oct 24, 2012 | 04:05 PM
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Default puff of smoke from cam cover

While messing about with the coolant leak from the filler tank, I noticed puffs of smoke coming from the cam cover. I had just given the car a hard 5 min drive to try to build up some good coolant pressure, left the engine running and popped the hood. It was then I noticed the smoke which continued for a couple of minutes then subsided.

The camera did not pick up the smoke puffs, but it was coming from this area, looks like there is a small oil leak above the exhaust manifold.

Will new cam cover gaskets fix this?

 

Last edited by RaceDiagnostics; Oct 25, 2012 at 05:30 AM.
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Old Oct 24, 2012 | 07:37 PM
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Yes, unless some one overtightened the cover and cracked it. Speaking of which, you might try backing off the cap screws and re- torquing. Not much to lose since it's already leaking.
RJ_______________
95 XJ6 120K mi
97 XK8 86K mi
 
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Old Oct 25, 2012 | 04:54 AM
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Thanks for the retorqing suggestion, Ill try that before going down the new gasket route.
 
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Old Oct 25, 2012 | 05:08 AM
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Was there a Genie? What did you wish for ?
 
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Old Oct 25, 2012 | 05:31 AM
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Originally Posted by steveinfrance
Was there a Genie? What did you wish for ?
An easy life, no chance with these two cars!
 
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Old Oct 25, 2012 | 07:28 AM
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Yes more than likely just the cam cover leaking. I noticed the same thing. First few minutes of driving it looked like puffs of smoke or steam coming from that area. Then it would subside until the next drive. The cam cover or gasket leaks over time. Usually in the lower back rear. The small leak drains onto the exhaust manifold and burns off as the engine heats up. Re-torque and then look at possible gasket replacement. I have heard that the cam covers themselves slightly warp over time. Due to age, heat and improper torque.
 
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Old Oct 25, 2012 | 08:21 AM
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When you retorque, loosen all the bolts first.

Next tighten the two center bolts between the spark plugs.

Then tighten the perimeter bolts, working from the middle of the valve cover outwards, alternating top and bottom of the cover.
 
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Old Oct 28, 2012 | 08:12 AM
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Guys, I'm having difficulty getting a socket and wobly on to this bolt due to the limited acces, any suggestions?
 
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Old Oct 28, 2012 | 09:53 AM
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Originally Posted by RaceDiagnostics
Guys, I'm having difficulty getting a socket and wobly on to this bolt due to the limited acces, any suggestions?
Easier to use a 1/4" flexible extension - takes up less room than a universal.
 
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