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P80 wagon rear wiper washer motor re-hab question?

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

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scot850
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P80 wagon rear wiper washer motor re-hab question?

Post by scot850 »

I have read here of guys opening up the rear washer motor and lubing it. How on earth do you do that without braking it?

I have about 3 used motors of which one runs. I managed to break one of the plastic 'bands' that hold one of the latches on the bottom of the pump even after warming it carefully with a heat-gun to soften the plastic. Even then that only gives access to the 2 lower pump cogs. The one attached to the motor was stuck fast and it took a fair amount of force to get it moving even slightly. Still not enough to get the motor running.

So those who have taken them apart to lube the units what did you do? Did you manage to remove the top black portion where the plug connects to somehow?

Advice appreciated.

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

scot850
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Post by scot850 »

I've attached a few photos of the offending item, and looking out for info on how to re-hab the unit and lube it?

I had someone say they had managed this before, but not sure who.
Rear washer pump motor P80 (1)
Rear washer pump motor P80 (1)
Rear washer pump motor P80 (2)
Rear washer pump motor P80 (2)
Rear washer pump motor P80 (3)
Rear washer pump motor P80 (3)
I want to know if the repair is done through the top of the unit by removing the black 'cap' as I can see no other way of accessing the motor.

Thanks,

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

Teddy1975
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Post by Teddy1975 »

Hi Neil.

I haven't done this exact procedure myself, but yes, I'd say you have to go in through the black cap somehow if you want to get to the motor itself. I'm not sure what you'd be lubing inside it however.

You may be interested in this instead though. It says for 760, but looks amazingly just like the one you're holding, $18 with free shipping:
http://www.ebay.com/itm/Windshield-Wash ... vd&vxp=mtr

/Teddy
Current: 850 2.0L N/A, 4 door 1996 manual
Previous: 740 2.3L N/A, 5 door 1992 manual, and S70 2.5T 1999 manual

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sleddriver
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Post by sleddriver »

I 'rehab'd' the pump section itself. Didn't venture into the motor case.
I'm curious how you'll open it without breaking. Inside a 200F oven for awhile until the adhesive loosens?
1998 V70 T5 226,808 miles. Original Owner.
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scot850
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Post by scot850 »

If I need to with 3 bad ones, I can take this one and cut it open to figure out how it is made for future reference. For $5 CDN at PnP it is not a big loss for learning for me and others.

Thanks for the tip in the 'cheap' version. I bought 2 from FCP from good old Pro-parts. I know they will be crap, but as a back up for less than $9 each that is ok. The did reduce them to lest than $6 US to clear them out!

Thanks for the reply guys. I'll let you know how I get on and take pictures. At $50 US plus shipping from FCP or $90 CDN from dealer I don't mind finding out haw to fix a part if it can be especially when the one in the "R" didn't last 4 years and 6000km of driving and is seized. It is the one in the pictures.

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

scot850
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Post by scot850 »

Well it turns out that you don't need to access the top end. It just turns out the one that is in the picture was the most stuck of the 3 motors that were not working. Turns out I had left it soaking at the bottom end where the cog wheels are with Deep Creep and (close your eyes those electrical inclined) and sprayed a bunch of contact cleaner down the sides of the cog wheel recess into the body of the unit. Today the motor cog started to turn more easily so I decided to try again and run the motor without the other cog in and the bottom plate left off. The damn thing started to run and slowly got faster and went into a fast speed (normal). Reassembled after cleaning the parts and snapped the bottom plastic cover back on. Tested it again and all was good. Decided to do like the headlight wiper motors and heat the tang area at the front by the outlet pipe to soften them. The white material is not very flexible and easy to break. I used 2 medium sized flat blade screwdrivers to help lever the cover off and cleaned the other 2 motors that were stuck and they both now run nicely. Once rebuilt I tested them fitted to the spare washer tank and they all ran with no leaks. So I now have 4 OE motors for the rear windshield that work so an interesting exercise.

Now just need to re-assemble the washer system and headlight wipers!

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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Post by abscate »

Well done. It's nice when you can recover and OEM part for labour only.
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scot850
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Post by scot850 »

No idea how long they will last and they are a real PITA to access and swap out. Think the only option is to remember to a) use the car more, and b) remember to cycle the motor weekly to keep it moving ( a kind of laxative method for washer pumps).

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

Teddy1975
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Post by Teddy1975 »

Does the washer fluid get into the section where the cogs are? If not, you could put ball bearing grease in there to prevent the axle from seizing. Otherwise option b sounds like the way to go :)
Current: 850 2.0L N/A, 4 door 1996 manual
Previous: 740 2.3L N/A, 5 door 1992 manual, and S70 2.5T 1999 manual

scot850
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Year and Model: 2000 V70 R
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Post by scot850 »

Yes the water gets in where the cogs are as that is what pumps the water.

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

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