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Thread: 134f total rebuild

  1. #1
    Senior Member pelago's Avatar
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    134f total rebuild

    When i started my m38a1 restoration project i had in fact wo engines , one with unknown use or mileage and one with reported 15k on speedometer, and was told it had in fact been rebuilt, just sat for long time. Well, long story short i used that in the running m38a1, and one of the reasons was i could see a corner of head gasket, and it was not old original style but new one. Consequently i have a spare motor. Have decided to use local machine shop, one reason for this is they helped me rebuild a little kubota diesel and it is still going strong today
    Have decided to do a total rebuild

    rebuild6.jpg rebuild7.jpg rebuild12.jpg PISTON1.jpg ROD BEARING2.jpg

    received call yesterday, the head is finished, looking good, and will deliver the bare block to them also

  2. #2
    Senior Member pelago's Avatar
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    Machine shop has the block, and i was able to pull up all the readings and specs for block, cyl, and crank, hoping that will NOT need new pistons, owner of shop felt crank only needed polish, but he has the specs and i can get quite a variety of rings and bearings...
    The head looks great, got it wrapped in a towel with light coat of oil
    head1.jpghead2.jpg

  3. #3
    Super Moderator LarrBeard's Avatar
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    Don't forget that there is a head bolt under the carburetor throat. It's a little short one. If you leave it out, the engine will almost run, for a little while. Really bad JuJu.

  4. #4
    Super Moderator gmwillys's Avatar
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    Looking great! It never hurts to have a spare power plant.

  5. #5
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    Looks like one cylinder got a little water in it but other than that I think you got material to work with.

  6. #6
    Super Moderator bmorgil's Avatar
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    Definitely a good core for a rebuild. I am pretty sure your gonna need pistons. A good fit with the rings pistons and cylinders, is the key to a great running motor, for a long duration. Your going to love that rebuild. How are you going to stop yourself from putting it in right away!?
    Last edited by bmorgil; Today at 07:36 AM.

  7. #7
    Senior Member pelago's Avatar
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    Quote Originally Posted by bmorgil View Post
    definitely a good core for a rebuild. I am pretty sure your gonna need pistons. A good fit with the rings pistons and cylinders, is the key to a great running motor, for a long duration. Your going to love that rebuild. How are you going to stop yourself from putting it in right away!?
    pistons?? All depends on what the micrometer says?? Put it in just dont know??

    brings up a question. when do you decide to scrap pistons?? i am hoping to use 10thousan over rings
    Last edited by pelago; Today at 01:33 PM.

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