911 Carrera Coupe F6-3164cc 3.2L (1984)
Mainshaft: Technical Service Bulletins
M/T - Torque For Mainshaft Castellated Nut Revised
Subject
Transmission Mainshaft
Part Identifier 3541
Applies To
911
from 1972 Model Year
Group
35
Key Points
Torque specification for castellated nut increased
C
Number
84-01
August 31, 1984
The torque specification for the castellated nut on the mainshaft (M18 x 1.5) has been increased to 160 N-m (118 ft lb).
This increase has been in effect in production as of January 24, 1984:
VIN 91 ES 121121 (Coupe) 91 ES 161110 (Targa) 91 ES 170632 (Cabrio)
During repairs on older transmissions built as of the 1972 Model Year, torque the nut to the new 160 N-m specification.
