Ball Stud Versions; Replacing Ball Stud - Porsche 928 Workshop Manual

928
Clutch,
Controlr
30
BALL STUD VERSIONS
1 - Original version with 10 mm ball diameter.
M 6 threads (originally this version was
without threads. also refer to "Replacing Ball
Stud").
2 - Modified version, 19 mm ball diameter,
M 6 threads without washer (was used briefly
in standard production).
3 - Modified version, 19 mm ball diameter,
l
M 6 threads with washer.
4 - Present version, 19 mm ball diameter,
M 8 threads with washer.
REPLACING BALL STUD
1. Unscrew ball stud after removing clutch (air
cleaner removed).
Note
Ball studs are locked with Loctite so that removal
must be done carefully and perhaps turning back
and forth several times will be necessary.
Heat a removed clutch housing (up to about
250 "C/480 OF) to facilitate removal of the ball
stud.
2. Clean threads with, for example, Loctite Cleaner
0706 prior to screwing in a new ball stud
(19 mm dia. instead of 10 mm dia.). Spread a
thin coat of Loctite 270 on thread flanks.
Screw ball stud version 3 with washer in clutch
housing. After depletion of stocks version 3 will
no longer be available. Then use ball stud
version 4 with washer (tap M 8 threads in
clutch housing).
The ball stud in cars prior to Chassis Number
9288200491
is not screwed, but pressed in. On these cars the
replacement of the ball stud will require installing
a M 6 - hnw, p " H-lwm
For ball stud version 4 (after depletion of version 3
stocks) the clutch housing has 8 mm threads
(without a threaded insert).
Printed in Germany - VI, 1982
Ball Stud Versions
Replacing Ball Stud
30.21