How to repair stud.

[Porsche 2]

After installing a '77 911 2.7 Ltr. in my 914 i was able to inspect the bottom of the engine more carefully. I have an oil leak that is coming from a stud shown in the pic. with two nuts on it. The stud rotates when attempting to tighten it which explains why the previous owner attempted to stop the leak with extra including one oversize washers and some sort of sealant (see "frozen" drop hanging from stud). Short of removing the engine and stripping the engine to split the case, what "satisfactory" method would you suggest I attempt to repair this oil leak?

[turbo owner]

Case bolt? If so, get the correct parts and fix it and get the seal also.

[Porsche 2]

Not the "typical" case bolt, see smaller long stud in the center of this pic.

[turbo owner]

OK, you should treat it like one

[Flat6pac]

It's a cam stud into magnesium. Like head bolts you need to open the case and install a case saver to hold the 8 mm stud. You won't find success trying to fix it from the outside.
Bruce

[75 911s]

As an alternative temporary solution to splitting the case you can tap it out and plug with a short bolt and crush washer.

[Jack Stands]

My 2.7 lived with the tapped case and a bolt with a washer until it was apart for a full rebuild. As it only helps in an area that holds the intermediate shaft, it's not a particularly high stress area. Then, when it's rebuild time, use a Timesert or a CasSaver to properly repair it.

[john walker's workshop]

Tap for 10mm and run in a short 10mm bolt and aluminum washer. Timesert it properly if ever the cases get split. It'll live fine with this repair. No drilling required BTW.

[Porsche 2]

Thanks fellows. I will do the 10 mm tap/thread, finishing with a short bolt and crush washer. This "brain trust is invaluable, thanks.