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Windshield Wiper Operstion

 

(@buckaroo01-2-2-2-2)
Eminent Member Registered
Joined: 7 months ago
Posts: 19
Topic starter  

I just got caught in a surprise rain shower. To operate my windshield wipers I had the turn the switch on then off to make one cycle.  Is this the normal operation for my 1948 Chevrolet Fleetmaster Woodie ?

 

 


   
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Tiny
 Tiny
(@tiny)
Hall Monitor Moderator
Joined: 19 years ago
Posts: 676
 

Nope. If you're not wanting to disassemble your wiper motor and restore it you'll need to send it off for a rebuild. The motor has a flapper (for lack of a better term) that is moved back and forth by the engine vacuum. Over time the seal and/or lubrication on that flapper dries out and it stops functioning correctly. There are methods for working transmission fluid into the motor to soften the old grease and restore function. I've not personally done that so I can't comment from personal experience. There are shops that advertise wiper motor rebuild services on line and in Hemmings Motor News. You also have the option of putting a 6v electric motor on your car. The Filling Station (ad at the top of the page) sells them. IMO the large down side to the electric is the switch knob doesn't match and will stand out like a sore thumb.

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Stovblt
(@ole-olson)
Reputable Member Registered
Joined: 5 years ago
Posts: 253
 

Tiny is right.

The answer is "nope".

I removed mine after I got my truck and before even trying to see if it worked.

I held the motor up so that gravity would help work the oil into the vacuum line while slowly turning the shaft back and forth through it's full travel.

I kept doing that until I couldn't get any more oil to go in, and I could hear oil moving around inside, then held the motor with the vacuum line down and turned the shaft back and forth until all the excess oil drained out.

When I was done, it worked fine.

I used light engine oil, but ATF may be better, I don't know.

You may have to let yours sit a while filled with oil to soften things up.

You could connect the motor to a vacuum hose and check to see if it works before going to the trouble of installing it.

If it doesn't, time to look for a professional as Tiny advised.

I too think electric is a last resort.

Ole S Olson
Saskatoon, Sask, Canada
1139 old site posts


   
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(@buckaroo01-2-2-2-2)
Eminent Member Registered
Joined: 7 months ago
Posts: 19
Topic starter  

I located a video on You Tube by The Jayhawker on how to fix a “Trico Vacuum Windshield Wiper Motor” using Marvel Mystery Oil.  I’m going to give it a try this weekend.


   
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