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What is this noise.....
When cranking our 2.2 ltr by hand, we can hear a rubbery scrapping, sound on the right bank close to the rear cylinders.
Two months earlier, the previous owner overfilled the motor with oil by 3-4 liters and we suspect ran it. we're wondering if what were hearing is a rubber valve guide jammed on the valve. Turning by hand as we cannot get the motor to run and we suspect this may be why. Thoughts.... Thanks for your input. |
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06-02-2010, 04:29 PM
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Registered
Join Date: Jan 2004
Location: CT
Posts: 11,563
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Do a compression and leak-down test and listen to where the leakage comes from.
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Tom Butler 1973 RSR Clone 1970 911E 914-6 GT Recreation in Process |
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06-02-2010, 05:17 PM
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Max Sluiter
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"rubbery scraping" sounds like a cam chain guide has fallen apart.
The valve guides are bronze, not rubber. 
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1971 911S, 2.7RS spec MFI engine, suspension mods, lightened Suspension by Rebel Racing, Serviced by TLG Auto, Brakes by PMB Performance |
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06-02-2010, 05:31 PM
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1971 Porsche 911S
