Quote:
Originally Posted by yelcab1
Compression test.
Leak down test.
And go from there. Why guess?
|
for the OP it`s most likely valve guides.As i mentioned back in 1980`-90` i have done plenty with very low mileage on 1987 low as 30K miles totaly worn out guides.I his case it is for sure.I had a friend in Germany who then confirmed to us(the shop) that they did do on 1987 some metallurgical changes to the valve guides on 87 models ---he worked at the Factory.I did hear some crazy stories from him about the production i cannot mention here...
Ivan
__________________
1985 911 with original 502 191 miles...808 198 km
"The difference between genius and stupidity is that, genius has its limits". Albert Einstein.
Last edited by proporsche; 12-05-2025 at 01:57 AM..
|