911 2.7 Trobleshooting Help
hello, I have a 1975 911S with a 2.7 engine. Th engine start Ok, however when it warms up it starts producing white smoke...does anyone have any suggestions as to the possible causes?
Thanks in advance! |
RE: 911 2.7 Trobleshooting Help
I would do a compression test and a leak down and see what your numbers are. Sounds like you might be looking at a complete or top end rebuild
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RE: 911 2.7 Trobleshooting Help
Initial compression tests were OK...Can you discribe the process of a leak test.
Thanks |
RE: 911 2.7 Trobleshooting Help
A leak down test injects air into the combustion chamber when the piston is at TDC. It is a good indicator if you have bad valves or rings. I would almost bet your valve guides/seals need replacement. The test is done using an air compressor and a special tool
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