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Thread: D2 pony motor balancer

  1. #11
    Join Date
    May 2018
    Location
    Elko NV
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    43

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    Quote Originally Posted by TOGNOT View Post
    I made such a puller.... Two long bolts ( about 12" or so) that thread into the balancer. At the "head" end of the bolt a pieces of 1" thick steel about 8" x 2". 2 holes in that plate match the distance between the holes in the balancer. Place a hydraulic Jack ( that will work on its side - some won't ) between the plate and the pony shaft.

    On a D6 I did this and had to use a cheater bar on the hydraulic Jack. I covered the entire assembly with a heavy tarp, expecting shrapnel to fly or the Jack to blow. There was a loud bang, but the balancer popped off.

    I posted pictures in an old post about this....
    Tognot, thanks for mentioning that post. I took a look at it, I have tried most of what was mentioned. I put the puller under as much pressure as my impact would give it and left it for 24 hours and nothing happened. I put heat to it while under pressure (although not too much ) I think I will try pressure and more heat again this weekend. Now that I understand that heat wonít hurt the flywheel. I will have to look but I donít remember seeing holes in the flywheel but then again I wasn't looking for them and they are probably there and using them and a jack will be the next option.

    Thanks again

  2. #12
    Join Date
    Jan 2007
    Location
    long island NY, Hancock Ma
    Posts
    2,128

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    sometime long ago I read that while you have the flywheel under strain to take a hammer and hit it perpendicular to the crankshaft to get it to pop off
    Cat 941B, Cat D2 4U, Cat D3B, Cat D4 7U, Cat D6 9U

  3. #13
    Join Date
    Nov 2006
    Location
    Pittsford NY
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    4,023

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    I crank my 10t hyd puller up, and then while holding my 20# against one side of the flywheel, tap the other side with my 10#. Specifically that is tapping on the circumference, not the front face
    Cheers,
    Neil.

  4. #14
    Join Date
    May 2018
    Location
    Elko NV
    Posts
    43

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    Quote Originally Posted by Neil View Post
    I crank my 10t hyd puller up, and then while holding my 20# against one side of the flywheel, tap the other side with my 10#. Specifically that is tapping on the circumference, not the front face


    I e tried tapping on it but not with two hammers. Iíll give that a try thanks

  5. #15
    Join Date
    May 2018
    Location
    Elko NV
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    43

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    ...............
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    Last edited by Hal; 09-07-2018 at 11:03 PM.

  6. #16
    Join Date
    Nov 2006
    Location
    Faunsdale, AL USA
    Posts
    3,649

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    Looks like you have a good grip on it. Did it pop off yet?
    D2-5J's, D6-9U's, D318 and D333 power units, 12E-99E grader, 922B & 944A wheel loaders, D330C generator set, DW20 water tanker and a bunch of Jersey cows to take care of in my spare time

  7. #17
    Join Date
    May 2018
    Location
    Elko NV
    Posts
    43

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    Quote Originally Posted by ccjersey View Post
    Looks like you have a good grip on it. Did it pop off yet?
    When I post that picture I had been messing with it off and on for hours yesterday and was getting pretty frustrated with it. I had put all my 220 pounds on that 10 ton puller and still nothing. As I was walking away for the night it popped loose so after a couple of months of messing with it I can finally move on with rebuilding it ! Thanks to everyone for your suggestions Iím sure Iíll have more questions along the way

  8. #18
    Join Date
    Dec 2015
    Location
    Bakersfield, CA
    Posts
    593

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    Hal, that's called " Victory!!"

  9. #19
    Join Date
    Nov 2007
    Location
    NW Ohio
    Posts
    2,704

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    "Bravo!!!!!"
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