Oil leak on a fresh engine

[den912]

Recently had my 1970 911T engine completely rebuilt ,it has a slight oil leak is this except-able on a freshly built engine
Thanks Brian

[Henry Schmidt]

Originally Posted by den912

Recently had my 1970 911T engine completely rebuilt ,it has a slight oil leak is this except-able on a freshly built engine
Thanks Brian

Eventually all mag case engines will seep oil but a fresh rebuild should be leak free.
Ask your builder what he /she thinks. If he has pride in his work he'll want to fix it.

[911 SLANT]

My 1976 2.7 mag case was rebuilt last January 2020 to 2.8. No oil leaks to date.

[RA Smith]

1975 911 Carrera oil leak. Oil leak is coming from what appears to be a stud? coming out of the lower left rear of the block. Local Porsche repair guy attempted repair but it still leaks. Looks like he simply squirted liquid sealer behind the nut and tightened it. Question? Did he half ass the repair because he might cause MUCH more work if he removed the stud? and properly replace the seals?

Also, I am having a hard time locating the part on any diagram.

[dannobee]

Those of us who work(ed) on these things know exactly which stud you're talking about. It has pressurized oil behind it. He "half assed" the repair because it pulled the threads out of the mag case. To repair it correctly will require complete teardown, splitting the case, and the installation of a time-sert.

[HaroldMHedge]

RA,

It sounds like your intermediate shaft stud has pulled/stripped out.

John Walker recommends this repair in Intermediate stud pulled.

Originally Posted by john walker's workshop

remove the stud and tap the hole 10x1.25 about 1" deep. install a short bolt with an aluminum sealing ring and don't worry about it until you eventually rebuild it. the hole takes the tap without further drilling, and there's really no damage done where you can't go back to a 8mm stud/washer/nut.

Looking in the 77 PET:
Illustration 101-05 Item 20 M8 Washer 900-031-014-30
Illustration 101-05 Item 21 M8 Hexagon Nut 900-084-004-03
Illustration 101-10 Item 15 M8 x 108 Stud 999-062-051-02