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Registered
Join Date: Aug 2004
Location: Andover, NY
Posts: 1,350
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Diesel Sound only at Idle
Hello all,
I noticed today the car making a diesel like noise at idle coming from what appears to be the cam tower (although I am not too certain of the exact location). I filled up with oil but the sound remains. Strangely it only is audible at idle. As soon as a tiny bit of throttle is given the engine note smooths out. Any ideas on what it could be? Please don't be anything major, I just had my timing belt and clutch replaced.
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Alexander '75 911S Targa '86 951 SOLD |
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06-12-2013, 05:57 PM
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Registered
Join Date: Sep 2011
Location: Florida
Posts: 1,949
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Was the car sitting for a while? If they sit the oil drains from the lifters and the diesel sound happens from the cam tower. Not a issue, drive it and the sound will eventuallly go away.
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06-12-2013, 06:29 PM
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Join Date: Aug 2004
Location: Andover, NY
Posts: 1,350
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Car has been driven regularly recently. Went on an hour drive and the sound was there at the beginning when idling and at the end when idling.
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Alexander '75 911S Targa '86 951 SOLD |
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06-12-2013, 06:33 PM
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Back from Beyond
Join Date: Nov 2004
Location: Alberta, Canada
Posts: 2,697
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Pop your distributor cap off and check the rotor. If the cam bolt was reused after a reseal it could have backed out and the rotor may be striking the inside of the cap.
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06-12-2013, 09:20 PM
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Registered
Join Date: Aug 2004
Location: Andover, NY
Posts: 1,350
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Could an exhaust manifold leak cause a diesel like sound?
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Alexander '75 911S Targa '86 951 SOLD |
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06-13-2013, 09:20 PM
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Registered
Join Date: Mar 2002
Location: London, UK
Posts: 415
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Quote:
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06-13-2013, 10:27 PM
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