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Thread: Windshield washer tank valve disassembly

  1. #1
    Join Date
    Sep 2014
    Location
    Fort Wayne Indiana USA
    Posts
    53
    My Cars
    1991 BMW 750il.

    Moon Windshield washer tank valve disassembly

    PT#: 61671382927
    I'm impressed on the number of parts on this car that can be reconditioned or repaired instead of buying a new part. It was leaking and the rubber o rings inside were rotten. Found o rings at the local hardware.

    20190121_082313.jpg PT#:61671382927

    ************************************************** ***********************************************
    Winshieldwashertankvalve.jpg

    This was the final assembly. The nylon washer was cut down from another washer to fit. I used a large drill bit. Added masking tape to the bit until the washer fit snugly. Then spun the drill and used sand paper until the washer was fitting into the valve cap perfectly. The threads into the tank were wrapped in plumbers tape to stop them from leaking. Do not over tighten!
    Last edited by Narly9999; 01-26-2019 at 11:17 PM. Reason: 61671382927

  2. #2
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    54,748
    My Cars
    11/88 E32 750iL+98 E36M3
    Finally someone posts a detailed parts pic, thanks. Some years back I also had that quick connect valve taken apart on a 750, it was completely clogged by concentrated (wrong) "window washer". They had added dishwasher or whatever into the large tank , although there is the smaller tank on the 750 for the concentrate.
    Shogun tricks and tips for the E32 series are HERE!

  3. #3
    Join Date
    Sep 2014
    Location
    Fort Wayne Indiana USA
    Posts
    53
    My Cars
    1991 BMW 750il.
    You're welcome! I've found through my searches, there needs to be more Video on these repairs. The PDFs are indispensable but videos sure would be nice. Shogun, You probably have a YouTube channel with videos right?

    I dropped this in a bench vise and scared the end a tiny bit. I suggest caution and a suitable material to grip and protect the valve housing while disassembly.

  4. #4
    Join Date
    Jan 2005
    Location
    Japan
    Posts
    54,748
    My Cars
    11/88 E32 750iL+98 E36M3
    No, I do not have a youtube channnel, all is on the youtube channel of one of my wrenching buddies , on the right side of this website there is a link to the youtube channel http://e32b12.blogspot.com/
    Shogun tricks and tips for the E32 series are HERE!

  5. #5
    Join Date
    Sep 2014
    Location
    Fort Wayne Indiana USA
    Posts
    53
    My Cars
    1991 BMW 750il.
    cool! And here are the two o-rings I used with a little Vaseline. She works like a well oiled machine. Removing all the corrosion/calcium deposits from the O-ring areas is important to good sealing.
    20190122_200844.jpg

  6. #6
    Join Date
    Sep 2014
    Location
    Fort Wayne Indiana USA
    Posts
    53
    My Cars
    1991 BMW 750il.
    I'm fairly certain there is a missing gasket from under the lid/cap of the valve housing. I'm getting a slow drip. I saw some materiel under there and was hoping it was just inconsequential. Now to make a gasket for the cap. hmm.

  7. #7
    Join Date
    Sep 2014
    Location
    Fort Wayne Indiana USA
    Posts
    53
    My Cars
    1991 BMW 750il.
    Winshieldwashertankvalve.jpg

    This was the final assembly. The nylon washer was cut down from another washer to fit. I used a large drill bit. Added masking tape to the bit until the washer fit snugly. Then spun the drill and used sand paper until the washer was fitting into the valve cap perfectly. The threads into the tank were wrapped in plumbers tape to stop them from leaking. Do not over tighten!

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