Wiper Motor

John Ganton · #1 30-11-04, 04:04

Does anyone know a source of rebuild kits for the Trico wiper motors?

Pete Ashby · #2 30-11-04, 21:49

Hi John

Try Chev's of the forties or Vintage Power Wagon both in the US

Pete

Bob Carriere · #3 01-12-04, 15:02

How similar are the wiper motors of Dodge M37 comapred to the CMP models....?? look very similar but.......

EBay.... listed by A B Lynn...... had some NOS rebuild kits for the wipers a while back.... about 10 bucks..... got a a couple...still sealed in preservative envelope. Would be nice if parts were interchangeable.

Any one with wiper motor rebuild experience out there....??

Bob C.

John Ganton · #4 13-12-04, 22:43

I had three wiper motors - all seized. I stripped one and there was no sign of wear or corrosion. The main "paddle" was stuck to the housing by fifty year old oil. On the second unit I just squirted in some gunwash. It freed right up. Can I declaire it "fixed " and just squirt in some light oil? Someone must have fooled around with these things.

Pete Ashby · #5 15-12-04, 20:48

John

don't use light oil, originally the paddle box is filled with a thick fatty grease you can still get this from various vintage part suppliers mostly in the USA, try a Ford or Mopar or Chev vintage parts dealer.

Or use Vaseline petroleum jelly, it works OK here in the UK but may get too thin in hot climes. The idea of the grease is to act as a vacuum seal between the paddle and the body of the wiper motor.

Pete

Phil Waterman · #6 15-12-04, 23:38

I pick up a Tri-co military wiper service kit at a flee market believe it or not they had both summer and winter grease.

Pete Ashby · #7 16-12-04, 21:30

That's right Phil,

There were two grades; I've seen these kits here in the UK some years back.
A summer grade used in artic conditions will end up with sized paddles or very slow wipers, where as a winter grade used in hot climes will just melt into the bottom of the chamber again ending up in no wipers due to loss of pressure differential across the paddle.

Pete

rob love · #8 16-12-04, 22:05

I have rebuilt several of the old CMP wipers and basically found what most of you have; the grease in the paddle has thickened over 50 years. Also, it seems like the mud wasps (or some similar insect) like to make a cacoon in the vacuum tube.
I use a Dow Corning #55 o-ring lubricant (silicone based grease) on the paddles. It is temperature stable so it keeps it's consistancy on those +35C days we have here, as well as the -35C we hit on the other end of the scale. It's actually rated for -65 to +177C, so it's effective for pretty much all of God-foresaken Manitoba. I have not had to replace any parts in the wipers, just a good cleaning and the paste.