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  1. #1
    New Member
    Join Date
    Jan 2012
    Posts
    3
    Tractor
    1960's Mitsubishi R1500

    Default Mitsu R1500..problems

    My Mitsubishi R1500 was running good until it ran hot, then loss of compression, wouldnt start, fixed the compression loss and i had to set the valves and then started to experience white smoke and loss of power. As you increase the throttle there is a knocking sound, i was told there was too much diesel getting in the cylinder and that i needed an injector. Does that sound right? I am no disesl mechanic and where do you think would be the best place to find parts for this old tractor?

  2. #2
    Veteran Member
    Join Date
    Sep 2002
    Posts
    1,499
    Location
    Mt. Ulla, NC
    Tractor
    Satoh S-470D, Mitubishi FD 1450D

    Default Re: Mitsu R1500..problems

    Sounds like a head gasket at least. Could the white smoke be steam?

  3. #3
    Silver Member
    Join Date
    Nov 2011
    Posts
    233
    Tractor
    John Deere Garden Tractors

    Default Re: Mitsu R1500..problems

    I believe if you start it up (cold) and run it with the radiator cap off, you will see bubbles in the radiator fluid if you have a coolant to combustion leak. Another trick I heard is to take the coolant overflow line and submerse it under water and see if that causes bubbles.

    But yes, unburn diesel fuel makes for white smoke as well.
    Mitsubishi/ Satoh S-373D

    John Deere 70, 140, 332, 345, and 420 Garden Tractors and attachments, Struck MD45 Dozer

    2002 Silverado, 1950 3100 Pickup, 2002 VW Golf TDI

  4. #4
    Veteran Member
    Join Date
    Jun 2010
    Posts
    1,421
    Location
    Southern California
    Tractor
    International Harvester 284, Yanmar 1401D, Yanmar 240, and others...many others...

    Default Re: Mitsu R1500..problems

    How did you assess and repair the low compression? How much white smoke are you getting? Does it smell like burning oil or rubber, or does it have a sweeter antifreeze smell? What do you mean by a knocking sound?

    Try the tips duwem gave you to check if it could be a head gasket leak. Valley Power sells Mitsubishi and Satoh tractor parts, but it seems wise to figure out what is broken first, before ordering parts.

  5. #5
    New Member
    Join Date
    Sep 2014
    Posts
    3
    Location
    Pennington Gap, Va
    Tractor
    all different kinds

    Default Re: Mitsu R1500..problems

    were can you find a head gasket for one of this

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