Thread: 911T oil leak
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Forssling Forssling is offline
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Join Date: Feb 2016
Location: Gothenburg - Sweden
Posts: 474
911T oil leak

Hi All!
I'm at the end of a 5 year total restoration of a -71T. The engine has been rebuilt to mostly stock spec. The only deviation is the oil bypass mod. I have not upgraded the oil pump. I have not upgraded to oil fed tensioners.

Today I started it up for the first time with the 20 min 2000rpm procedure. It all went very well except for some oil leaks. One minor at the oil hose that I gave some more tension.

The other drips from pretty high up on the right side and drops off the tension release valve plug. It is hard to see exactly.

My guess is the upper seals of the oil cooler. All seals replaced of course but maybe they need to be tightened a bit more.

My questions are:
1) Do you agree with the above?
2) If not, what would you guess?
3) Can a bit overfilling of oil cause this? I was too excited and forgot to check the dipstick.
4) Anything else I should look fore before the next start?

I assume I can get to the upper bolts without dropping the engine but I need to remove carbs and fan shield. If I do this I want to know if to check anything else.

Appreciate all your input!
Jörgen Forssling
Gothenburg
SWEDEN

Old 05-29-2021, 08:31 AM
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