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Registered
Join Date: Jun 2006
Location: Woodinville, WA
Posts: 29
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Just had my top end rebuilt
I was wondering that if the fellow pelicans thought that a puff of blue smoke at start-up would be acceptable after a fresh top end rebuild. They replaced all 6 exhaust valves. Doesn't the smoke indicate worn valve guides? Would these have been replaced during a routine rebuild? BTW the motor is an 3.0 SC 1983.
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-Gabe '83 SC '01 Duramax '04 Toureg |
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09-13-2006, 09:06 AM
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Friend of Warren
Join Date: Oct 2000
Location: Lincoln, NE
Posts: 16,502
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The puff at start up is normal even on a rebuilt engine.
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Kurt V No more Porsches, but a revolving number of motorcycles. |
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09-13-2006, 09:07 AM
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Registered
Join Date: Nov 2000
Location: Dallas
Posts: 3,597
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I'd watch the overall oil consumption which should improve. Does your bill show valve guides were replaced?
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Buck '88 Coupe, '87 Cab, '88 535i sold, '19 GLC 300 DD Warren Hall, gone but not forgotten |
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09-13-2006, 09:09 AM
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Registered
Join Date: Dec 1999
Location: Novato, CA
Posts: 4,740
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That puff at startup is oil getting past the rings when the crank case fills to the level of the cylinders after parking overnight. There is no way that oil could travel uphill on the exhaust guides no matter how bad they were.
Joe 74 w/86 3.2 |
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09-13-2006, 09:40 AM
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