1971 Wiper Problem
Thread Starter
Burning Brakes
Joined: Aug 2007
Posts: 1,084
Likes: 8
From: Illinois
1971 Wiper Problem
When I turn the wipers off the passanger side wiper doesn't seem to go down far enough the trip the interlock valve. I know you can adjust the valve--needs to come up 1/16 inch but the wiper looks like it should go down farther. Any adjustment on the wiper. Everything else works great and the drivers wiper goes all the way down to the stop. When the door comes down its hits the top of the passenger wiper. Is this normal?
Safety Car
Joined: Feb 2006
Posts: 3,557
Likes: 0
From: Ridgeway VA
Make sure your LH wiper goes completely down - if not it will prevent the RH wiper from coming down on the relay valve. Hopefully all you have to do is adjust the LH wiper further down. This worked for me. NOTE: look closely at the LH wiper it may be seated but bent up so the RH wiper does not seat. The door should not touch the wiper at all.
Team Owner
Joined: Sep 2006
Posts: 31,271
Likes: 4,362
From: Westminster Maryland
Hi W,
The adjustment at the wiper motor shaft determines how far down the wiper transmission shaft pulls the wiper arm. The driver's side blade rests against the stop plate first, and then the passenger's side. The adjustment procedure is on UPC 1, Sheet D6.
This picture show the adjustment at the wiper motor in the wiper well. It's those 4 nuts and 2 plates under the grill mounting bracket.
Regards,
Alan
The adjustment at the wiper motor shaft determines how far down the wiper transmission shaft pulls the wiper arm. The driver's side blade rests against the stop plate first, and then the passenger's side. The adjustment procedure is on UPC 1, Sheet D6.
This picture show the adjustment at the wiper motor in the wiper well. It's those 4 nuts and 2 plates under the grill mounting bracket.
Regards,
Alan
Thread Starter
Burning Brakes
Joined: Aug 2007
Posts: 1,084
Likes: 8
From: Illinois
I adjusted the the shaft as far as it would go and now my wiper door won't go down--just stays up. Whomever thought up the vacuum system for wipers and lights should be shot. Must have a vaccum leak somewhere because the relay/interlock valve worked last night. I fix one thing another stops.
Team Owner
Joined: Sep 2006
Posts: 31,271
Likes: 4,362
From: Westminster Maryland
Hi W,
Do you realize that in 1973 the service managers all got together and had the engineer who designed the wiper/headlight systems assasinated?
It's really neat when it works but it can drive you absolutely crazy!!!
Do you have the trouble shooting guide from Dr. R. ? It really helps.
Regards,
Alan
Do you realize that in 1973 the service managers all got together and had the engineer who designed the wiper/headlight systems assasinated?
It's really neat when it works but it can drive you absolutely crazy!!!
Do you have the trouble shooting guide from Dr. R. ? It really helps.
Regards,
Alan
Safety Car
Joined: Aug 2001
Posts: 4,883
Likes: 11
From: North Easton Mass
Pull the outer rubber bellows off the canister and make sure the seal hasn't popped off. My 72 hadn't been run in 10 years and the wiper door didn't work. I found that the seal had popped out and when I re-seated it the door worked fine. Miracles do happen.
Rick B.
Rick B.
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