this motor is sealed:
All the stops are internal, from what I remember. There are only a few
adjustments in the outside, it sounds like the bevel gear has worn, and the
worm gear slips a bit after the linkage hits the stops.
Maybe time for a new one, unless parts are available.
Time to PING the man: bigfig, he's the resident genius on parts and
I hope this helps?
See other post by Bruce. This is a common problem that the aftermarket, not the
OEM has fixed with inguenity.
As I recall, GM will make you buy the whole ball of wax when the old parts can
easily be replaced/repaired.
Joe--ASE Certified Parts Specialist & 10th Ann.Club Tech Director
'80 Carousel Red Turbo T/A, 27k orig.
'79 "Y89" 400/4 speed 10th Ann. T/A, 57k orig
'84 Olds 88 Royale Bgm 2 dr, 307 "Rocket" (lol), 143k and still going....
'91 S10 Blazer 4.3Z
The balls inside the motor have finally given and now become a fine dust.
You'll need to get new internal bumpers. I bought them here:
Worked fine on both my headlights.
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