Headlamp Door Mort Replacement
Thread Starter
Instructor
Joined: Jan 2016
Posts: 148
Likes: 16
From: Verona KY
Headlamp Door Mort Replacement
Hey Gang
I hit a deer Fri night with my '86 coupe.
The FSM doesn't show any special procedures to install the motor in regards to timing the motor to the door travel.
Where am I missing this information?
Jonathan.....
I hit a deer Fri night with my '86 coupe.
The FSM doesn't show any special procedures to install the motor in regards to timing the motor to the door travel.
Where am I missing this information?
Jonathan.....
Team Owner
Joined: Jul 2004
Posts: 28,472
Likes: 3,290
From: Hartford WI
And I doubt it will if it is similar to my 91. It hits the limiter and the motor struggles against it and that draws more current. That spike is interpreted by the module as "limit reached" and it shuts off the current and the motor stops where it is.
Safety Car
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
So you have the same bottom line answer: there is no alignment or "timing" of the motor in the headlight assembly for either the early style or the late style headlight doors.
If you are rebuilding your motor, be sure to lubricate the motor armature bearings with a light weight white grease, like LubriPlate or CRC StaLube so the armature can shift position as the motor stalls, and be sure the limit switches are clean.
Thread Starter
Instructor
Joined: Jan 2016
Posts: 148
Likes: 16
From: Verona KY
Thanks for the help.
Bambi disintegrated the pass side headlamp pod w/ NO damage to the hood anywhere and put an antler point through the driver's door.
This is also my excuse to get some needed paint work done
Jonathan.....
Bambi disintegrated the pass side headlamp pod w/ NO damage to the hood anywhere and put an antler point through the driver's door.
This is also my excuse to get some needed paint work done
Jonathan.....
Team Owner
Joined: Jul 2004
Posts: 28,472
Likes: 3,290
From: Hartford WI
It's a bit different in the '84-'87's. When the headlight door hits the door bump stops at the end of its travel, the motor will stall. The motor armature detects the stalling of the motor and actuates the limit switch inside the motor to shut off the motor. There is no current sensing "module" in the early circuit.
So you have the same bottom line answer: there is no alignment or "timing" of the motor in the headlight assembly for either the early style or the late style headlight doors.
If you are rebuilding your motor, be sure to lubricate the motor armature bearings with a light weight white grease, like LubriPlate or CRC StaLube so the armature can shift position as the motor stalls, and be sure the limit switches are clean.
So you have the same bottom line answer: there is no alignment or "timing" of the motor in the headlight assembly for either the early style or the late style headlight doors.
If you are rebuilding your motor, be sure to lubricate the motor armature bearings with a light weight white grease, like LubriPlate or CRC StaLube so the armature can shift position as the motor stalls, and be sure the limit switches are clean.
Thread Starter
Instructor
Joined: Jan 2016
Posts: 148
Likes: 16
From: Verona KY
Hey Gang
I'm back to trying to finish this headlamp door motor problem with the passenger side after the deer strike back in December.
I took the motor back apart and cleaned the contacts and used a very light lube on the gears. The issue is now that the door spins to the open position and stays there soon as I plug in the connector.
I'm sitting here now looking at Section 8A-102 in the FSM. The motor connector voltages in the table on 8A-102-3 are correct so the problem is inside the motor. Is there an any kind of adjustment on the limit switches that I need to perform or replace the motor?
Jonathan.....
I'm back to trying to finish this headlamp door motor problem with the passenger side after the deer strike back in December.
I took the motor back apart and cleaned the contacts and used a very light lube on the gears. The issue is now that the door spins to the open position and stays there soon as I plug in the connector.
I'm sitting here now looking at Section 8A-102 in the FSM. The motor connector voltages in the table on 8A-102-3 are correct so the problem is inside the motor. Is there an any kind of adjustment on the limit switches that I need to perform or replace the motor?
Jonathan.....
