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  1. #1
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    1940s mccormick deering 0-4, 170 allis chalmer, 950 john deere, 7030 and 7040 allis chalmer 986 international

    Default 04 mccormick deering engine problems

    hello, i am rebuilding a mccormic deereing 04 and replaced bearings, pistons and every thing els and put engine in frame and tryed to use a pry bar to turn the fly wheel but it wouldnt budge do you have any ides what is wrong? thanks

  2. #2
    Gold Member
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    NH Boomer 1025

    Default Re: 04 mccormick deering engine problems

    What size rod & main bearings did you install ?? The pistons the same as the old one ??

  3. #3
    Elite Member
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    MASSEY, CASE , FARMALL

    Default Re: 04 mccormick deering engine problems

    Quote Originally Posted by boomer1025 View Post
    What size rod & main bearings did you install ?? The pistons the same as the old one ??
    Sounds correct. Were clearances measured before installation?

  4. #4
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    1940s mccormick deering 0-4, 170 allis chalmer, 950 john deere, 7030 and 7040 allis chalmer 986 international

    Default Re: 04 mccormick deering engine problems

    Yes every clearence was measured and was correct

  5. #5
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    Default

    Could the engine have to much compression that you cannot over come. Try turning it with the spark plugs out to releave compression.

  6. #6
    Silver Member heviduty's Avatar
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    central NC
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    Kubota L3400HST/LA463 loader JD 318 / 3ph(cat. 0)

    Default Re: 04 mccormick deering engine problems

    Is it in neutral?
    Happy as if I had good sense.
    One orange, one green.

  7. #7
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    1940s mccormick deering 0-4, 170 allis chalmer, 950 john deere, 7030 and 7040 allis chalmer 986 international

    Default Re: 04 mccormick deering engine problems

    no spark plugs in and it still wont turn, is it possible for a connecting rod to get cockeyed?

  8. #8
    Member
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    1940s mccormick deering 0-4, 170 allis chalmer, 950 john deere, 7030 and 7040 allis chalmer 986 international

    Default Re: 04 mccormick deering engine problems

    it is just in the frame its not connected to the transmission just sitting in the frame no spark plugs in it either and it is still froze, it has new bearings and sleeves and pistons, could a connecting rod be in slightly wrong?

  9. #9
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    1940s mccormick deering 0-4, 170 allis chalmer, 950 john deere, 7030 and 7040 allis chalmer 986 international

    Default Re: 04 mccormick deering engine problems

    Quote Originally Posted by nattynuts5886 View Post
    Yes every clearence was measured and was correct
    it is just in the frame its not connected to the transmission just sitting in the frame no spark plugs in it either and it is still froze, it has new bearings and sleeves and pistons, could a connecting rod be in slightly wrong?

  10. #10
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    Default

    Could be a connecting rod installed backwards (180degrees out) or too tight of fit on the parts.
    Last edited by MIKE R; 09-10-2012 at 04:40 PM.

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