headlight motor adjust?
Thread Starter
Racer
Joined: Nov 2004
Posts: 265
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From: Angleton Tx
headlight motor adjust?
Just installed headlight motors on my 1990 Vette but when opening or closing the motors seem not to know when to stop and keep clicking and the adjust **** keeps rotating for a few seconds. How is this adjusted for it to find it's limit?
Instructor
Joined: Jul 2002
Posts: 172
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From: jax fl
It sounds like the plastic gears in the motors are worn. Ecklers, mid america etc sells replacement sets for less than $10 per side. The motors will run longer and longer as the gears continue to wear out. Eventually they will keep running and not shut off .. This was my experience anyway on my 91.
Thread Starter
Racer
Joined: Nov 2004
Posts: 265
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From: Angleton Tx
Originally Posted by 1lapRacer
It sounds like the plastic gears in the motors are worn. Ecklers, mid america etc sells replacement sets for less than $10 per side. The motors will run longer and longer as the gears continue to wear out. Eventually they will keep running and not shut off .. This was my experience anyway on my 91.
Actually the lights still want to go up, it's not as if they are slipping.
They jsut don't seem to know when to stop.
Instructor
Joined: Jul 2002
Posts: 172
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From: jax fl
The motor will continue to run after they are put up or down. Then the motors will shut off after a few seconds/minutes... Eventually they may not want to go up or down and you can do it manually.
This help?
This help?
Pro
Joined: Jul 2002
Posts: 729
Likes: 4
From: Yukon OK
On the 88 and later head lights there are 3 delrin bushings that transfer drive from the gears to the headlight assembly. When these go bad the lights appear to "slip" and the motor keeps running, sometimes with a rapid klunking sound. You have to take the motor apart and pull the gear apart to replace them, but it is not too tough. They usually just turn to white dust inside the gear. Bad gears will cause the headlights not to move at all.
Thread Starter
Racer
Joined: Nov 2004
Posts: 265
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From: Angleton Tx
so there isn't a adjustment for the open and closed position?
They really don't seem to be slipping but rather clunking over and over at the limits. The motors that I replaced were slipping and I am about to put the bushings in those and have them as spares. These new motors are suppose to work very well but act as if they need an adjustment. What is the adjustment at the bottom of the motor that requires a flat head screw driver for?
They really don't seem to be slipping but rather clunking over and over at the limits. The motors that I replaced were slipping and I am about to put the bushings in those and have them as spares. These new motors are suppose to work very well but act as if they need an adjustment. What is the adjustment at the bottom of the motor that requires a flat head screw driver for?
Drifting
Joined: Oct 2003
Posts: 1,594
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From: CALGARY ab
Originally Posted by prodadiv
so there isn't a adjustment for the open and closed position?They really don't seem to be slipping but rather clunking over and over at the limits. The motors that I replaced were slipping and I am about to put the bushings in those and have them as spares. These new motors are suppose to work very well but act as if they need an adjustment. What is the adjustment at the bottom of the motor that requires a flat head screw driver for?
for more info :HOW TO FIX YOUR HEAD LITES
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