Winshield Wiper rebuild

reddog · Post by **reddog** » Tue Jul 07, 2009 9:00 pm

Does anybody know who sells rebuild kits for my M38 wiper motor? Or do I have to buy a whole new motor?

Bill_F · Post by **Bill_F** » Tue Jul 07, 2009 9:10 pm

I need to know the same thing. I hooked mine up, if you move the arm it sounds like they would work, and if you move the arm fast enough the over wiper will move, however is I turn the valve nothing happens.

Post by **Ryan_Miller** » Tue Jul 07, 2009 9:26 pm

The wiper man: google the wiper man, he rebuilds trico wiper motors and many other vacuum motor windshield wipers.

www.wiperman.com

Post by **wesk** » Tue Jul 07, 2009 9:43 pm

Vacuum wipers take a lot of undue verbal abuse. They did a wonderful job for more than 60 years yet they are constantly bad mouthed.

!/2 of the wipers out there that aren't performing well are usually improperly plumbed or not recieving adequate vacuum from the engine and adequate vacuum boost from the fuel pump.

The other 1/2 can in some cases just be lightly lubricated to bring them up to snuff and the rest need a rebuild.

The kits can be found but if one takes their time and cleans and inspects closely all parts you'll find that most items can be returned to service and things like gagskets and flappers can readily be fabricated from new materials.

If you would rather hire the rebuild done then the place to go is:
http://www.wiperman.com/

Keith · Post by **Keith** » Thu Jul 09, 2009 9:50 am

what is the best type of lubrication for them and best type of material for making the internal parts?

thanks
keith

Post by **wesk** » Thu Jul 09, 2009 11:46 am

Any modern man made rubber like material. The lubricant should be a material that is normally used to soften and renew that particular material. For example silicon based rubbers respond well to spray silicon and clean up well with alcohol first.

Boomer573 · Post by **Boomer573** » Sat Jul 11, 2009 8:56 pm

Ok, silly question time.....where does the wipers get the vaccum from. Please help the "new guy" with a lot of details/description

Post by **wesk** » Sat Jul 11, 2009 11:58 pm

It's all in your service manual.

The original suck comes from the intake manifold. This suck is boosted to an even higher suck by the vacuum pump half of the fuel pump assembly. This super suck is delivered via a small tube from the pump up through a "T" fitting and then a hose near the firewall just about even with the rear end of the intake and then that hose goes through a small hole in the left side of the cowl and the hose connects to a small 7/32" tube at the lower left arm of the windshield and goes to a on/off valve at the bottom of the driver's windshield then via the same small tubing and hose to each wiper motor.