Air Actuated Windshield Wipers

[Glennman]

Remember that quite a few problems with the wipers are actually from the control valves, so maybe talk through the problems you're having with Luke - he should be able to help you decide if it's the motor or the control valves.

That makes sense. The air actuators make a lot of air noises. I'll should give Luke a call.

[biff]

I made my own they work great. and the cost was less than 400.00.I posted pic.

[chessie4905]

If you are handy, I'm sure you can make something work. Also, run the exhaust tub down through the floor to outside. You don't need to breathe that oil mist when they are operating.

[Iceni John]

I overhauled my Sprague HP-200 wiper motors a few years ago when the driver-side became noticeably slower than the other side.   Their O-rings were completely worn out, so a few dollars-worth of new O-rings, a thorough cleaning, and a liberal dose of Triflow lubricant got them both working smoothly and much quieter.   One thing I did was to add an inline mister lubricator to each motor's air line so they now are always lubricated  -  what a difference!   I used the 1/4" Harbor Fright misters but they're now discontinued, but a Norgren (at three times the price) is the next best alternative.

The air-operated washer pump did however defeat all my best efforts to make it work without squirting fluid back onto my leg while driving.   I now have two cheapo (less than $20 each) electric pumps from Pep Boys, one for the original wiper arm nozzles, and the other for a new pair of nozzles above the windshield:  there's no way any bugs will stay stuck on now!   I managed to graft the original Sprague push knob onto a momentary-on push switch, so now it all looks and works like original.

Neither of these jobs was that hard, and the end results are well worth it.   Well-lubricated air wiper motors with new O-rings may be all you need.   Don't give up on them.

John

[drg]

I've had good experiences with these guys for my MCI D project:
They are 'breaking' stripping some MCIs. They have a large number of electric wiper assemblies for $250 per pair/set.
https://fowlersautowrecking.com/bus-parts/bus-part-search/
Stock #P-26

[chessie4905]

Uxcel 1/4" air line lubricator, available on Amazon.

[Iceni John]

Uxcel 1/4" air line lubricator, available on Amazon.

The Uxcell AL2000-02 1/4" lubricator looks identical to the now-discontinued Harbor Fright ones that I use, and they work just fine for the wiper motors.

John

[TomC]

There's a real good reason why air wipers and not used anymore.

[dtcerrato]

Our oem air wipers work just fine & w/o misters. A clean air system helps.