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89 GEN1 LWB Headlight Washer Pump Rebuild #1104423
06/24/18 06:13 AM
06/24/18 06:13 AM
C
chadzeilenga  Offline OP
Getting the Wheeling Fever
Joined: Apr 2018
Posts: 32
Charlotte, NC USA
Hi All,
Still continuing to sort out some issues on my Montero. One that is annoying is my front washers. I first filled up the resevoir with new fluid, only to have it start leaking out of the washer nozzles. I'm assuming that it was leaking past the non-operating pump...so I pulled that out of there.

I found a spare reservoir and pump at the JY and installed them. Unfortunately the pump (MB510538) is dead when I push the button on turn signal lever. I looked for a replacement and they are pricey.

Has anyone taken one of these pumps apart to rebuild?


Chad Zeilenga
1989 Gen 1 Montero
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Re: 89 GEN1 LWB Headlight Washer Pump Rebuild [Re: chadzeilenga] #1104424
06/24/18 03:59 PM
06/24/18 03:59 PM
D
dfreem01  Offline
Need a Spot
Joined: Oct 2016
Posts: 12
CO
Howdy Chad,

I've rebuilt one from a 91. The main problem it had was the impeller wasn't spinning but I could hear the relay engage. You could try, lubing the impeller from the outside. The risk is there's a rubber gasket that you don't want to damage. Taking it apart does allow you full access to that. But be warned! There are some small parts in there that are NOT FUN to reassemble. In order to completely fix it up, you may need to take the pole magnets (stators?) out. They are itty bitty tiny spring loaded demons who laugh and mock you and then unleash hate, cussing and alcoholism.

So, overall, it's great fun.

I tried to rebuild one from a 87. It spun like a dream but there was so much corrosion, I couldn't save the 'lectrics. But since I knew I had another, I put it in a bag and may try again when the-one-that-works-but-I-dont-use-because-I-dont-remember-its-there craps out. I think it's still apart. If so, I can post some pics before you get in there.

Lemme know.

David

Re: 89 GEN1 LWB Headlight Washer Pump Rebuild [Re: chadzeilenga] #1104425
06/25/18 02:40 AM
06/25/18 02:40 AM
C
chadzeilenga  Offline OP
Getting the Wheeling Fever
Joined: Apr 2018
Posts: 32
Charlotte, NC USA
Hmm, thanks for the input! I have two pumps, one doesn't turn at all and the other spins, but doesn't pump anything. I'll probably start with the one that doesn't turn at all and see what I can find out.


Chad Zeilenga
1989 Gen 1 Montero
Re: 89 GEN1 LWB Headlight Washer Pump Rebuild [Re: chadzeilenga] #1104430
06/27/18 04:02 AM
06/27/18 04:02 AM
rxinhed  Offline
Trail Leader
Joined: Feb 2005
Posts: 7,108
Gerber, CA *****
Jay Ayala did a write up on this topic:

Jay's article


1988 Mighty Max turbo 2.6 service body
1980 Power Wagon W400
Sundry Mitsubishi Montero Gen 1 parts, Gen 1 and Gen 2 Max parts
Parts vehicles: 89 LS Montero 4-door, 2002 Sport AWD
For Sale: 1989 Power Ram 50 extended cab, #277 Montero
Re: 89 GEN1 LWB Headlight Washer Pump Rebuild [Re: rxinhed] #1104432
06/27/18 05:31 PM
06/27/18 05:31 PM
C
chadzeilenga  Offline OP
Getting the Wheeling Fever
Joined: Apr 2018
Posts: 32
Charlotte, NC USA
Originally Posted by rxinhed
Jay Ayala did a write up on this topic:

Jay's article


Thanks RX, It's a good reminder to check those archives to stay familiar with the items that have been covered.


Chad Zeilenga
1989 Gen 1 Montero

Moderated by  Macka, Mudraider, off-roader, PajEvo, rxinhed 

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