XL Windshield Washer Pump

[Jerry Winchester]

In the spirit of "if I can fix an AquaHot, I can fix anything", I tried to figure out why my windshield washer pump was inoperative.

When I turned it on, it ran for a few seconds then started leaking water out of the housing by the electric motor. After removing the washer tank, I removed the pump and started taking it apart.

It is a rather ingenious little mechanical diaphragm looking pump made in Germany. However, the Prevost parts book only shows the washer pump as an assembly. I can tell what parts I need, but wanted to know if anyone had tried to rebuild one of these and if so, where did you get the parts?

Looks Mangoesk easy, but without the parts I may be buying a new one.

[ken&ellen]

No kidding.....it even heats the water for those frosty mornings. I believe they are standard in BMW or that other high priced Germany car. I can see a new topic for future POG rallies. Ken

[Jerry Winchester]

Well I can't believe as big as that washer fluid reservoir is that Jon hasn't rigged his up to "Hot Shot" the fluid onto the windshield.

Then Roger would want to plug into the Webasto circuit and rig a crab boiler up to it for those times when seafood is scarce....

[lewpopp]

Hey Jer

I recall that Jeff said he had a swimming pool pump for water supply in his new coach. Maybe he can bottle up some pressured water and send it on. The way he talks, it would blow the rubber off of the wipers.

[Jerry Winchester]

Well the pump is scrap. No parts to be had from Prevost, so I ordered a new one.

Only $52 LewBucks.

[MangoMike]

We better see some pixs and part #s. If you want to keep your POG card.

MM

[Jerry Winchester]

Well I got the long awaited windshield washer pump. Of course it didn't look anything like the one I took off, but I hoped that it was a direct bolt on replacement. NOT.

I should have just gone down to the local truck parts place and bought one off the shelf and rigged it up.

Anyway, here are the photos. And Jon, before you rip my cheese about the dirt, I was on the other side of the airport, not near the wash rack or my hanger, so it will be squeeky clean by the weekend, so turn the gain down on the anal-o-meter.

Old Pump - Crappy pump, crappy photo



New Pump - I'm sure it fits some kind of Prevost



New Pump Installed

[Jon Wehrenberg]

Jerry,

Did the new pump come with any specs like feet of lift or flow rate or some other sizing indicator? My reason for asking is that there is a high probability a suitable pump could probably be found at a store that sells pumps for aquariums or outdoor garden ponds or even at the WW Grainger store.

If a Prevost repaired part requires modifications then why not just get your own pump locally.

I do like the junkyard as a source of parts. I did that a lot on my last coach.

And without a word I now have you jumpy about your bus cleanliness. I love it.

[Jerry Winchester]

I think the only issue with the pump is that it is a 24V pump which would make it more difficult to replace.

It pumps like like Lew trying to get the truckers to honk, but none of the holes in the bracket match, the inlet / outlet don't match the old pump and the spade connectors on the top of the pump are so close together they interfere with each other.

Other than that, I guess it is a good pump. For $52.

[Just Plain Jeff]

Hopefully this work will not involve disassembly to get to the Sprague air controller. That would be taking off the interior wall (right side) of the stairwell to get at it.