Subject: Oil Leaks From Engine Mount Bolt Models: 911 Carrera 1983
Bulletin Number: 83-09

On some vehicles, oil may leak from the upper right mounting bolt for the rear engine carrier.
These leaks are due to porous areas between the engine oil passage and threads
To prevent oil leaks from this area, the factory has replaced the M10 X 22 mm mounting bolt with an M10 X 15 mm stud secured with Loctite 270.™
Production change as of Sept. 23, 1983
Engine Number 930/21 64E00657
930/66 67E00188 ( Turbo/Canada )
In response to oil leak complaints, install stud with Loctite 270.™
Parts:
Stud P/N 99 061 056 02
Washer
Nut
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