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  1. #1
    Bronze Member
    Join Date
    Dec 2001
    Posts
    58

    Default Water Pump Leak on '81 Satoh S-630 Bull

    Only while the cooling system is pressurized does a small leak appear from the water pump. It is hard to tell if it is from the shaft seal or gasket area. Anyhow, a pump rebuild / replacement may be in order. Any ideas to pinpoint the cause and locate parts would be great and much appreciated.

  2. #2
    Silver Member
    Join Date
    Jan 2002
    Posts
    239
    Location
    Roanoke, Va
    Tractor
    Satoh S470D

    Default Re: Water Pump Leak on '81 Satoh S-630 Bull

    I can supply a replacement if you need it. Call toll free 1-800-609-5110 or email me at satohparts.com. Bill

  3. #3
    Gold Member
    Join Date
    Mar 2005
    Posts
    254
    Location
    Talladega county, Sylacauga, AL
    Tractor
    Yanmar YM2020D Satoh Beaver III Yanmar 1500

    Default Re: Water Pump Leak on '81 Satoh S-630 Bull

    Check the hose first. Water pump usually leaks when cold it it is the shaft seal and leakes from a weep hole under the shaft. presure leak indicates a hose, gasket or a cracked housing. Most likely a hose.

  4. #4
    Bronze Member
    Join Date
    Dec 2001
    Posts
    58

    Default Re: Water Pump Leak on '81 Satoh S-630 Bull

    Thanks Bill and Norm. I'll check it out.

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