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  1. #1
    Join Date
    Apr 2021
    Posts
    19

    Default Raw Water Pump Rehab

    I'm almost done winterizing my '89 Supra Mariah, and I currently have the raw water pump back in my garage. When I opened it up, I noticed some rust inside the flywheel portion of the pump. I also noticed some built-up corrosion at the area where the metal gasket/flange meets the pump body. What is the best way to clean this without causing damage to the bearings?

  2. #2
    Join Date
    Nov 2021
    Posts
    1

    Default

    No one has any ideas on this?
    ...

  3. #3
    Join Date
    Apr 2021
    Posts
    19

    Default

    It seems not unfortunately. I ended up buying a refurbished one and sent the old one back in as a core. Pulling apart all the bearings, retaining rings, etc, to do a proper rehab seemed more trouble than it was worth.

  4. #4
    Join Date
    Jun 2012
    Location
    Knoxville TN
    Posts
    1,343

    Default

    Quote Originally Posted by asmithcveg View Post
    It seems not unfortunately. I ended up buying a refurbished one and sent the old one back in as a core. Pulling apart all the bearings, retaining rings, etc, to do a proper rehab seemed more trouble than it was worth.
    There was a video out there at one time from someone who sold pumps. Not sure what boat maker, but my overall opinion was the same on the cost vs the hassle of tracking down parts (the right parts).
    2018 Supra SL400

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