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cant disconnect engine from tranny

Discussion in 'The Hokey Ass Message Board' started by marty mar, Mar 13, 2013.

  1. marty mar
    Joined: Jan 26, 2012
    Posts: 12

    marty mar
    Member
    from Rio Rancho

    i have a 1954 chevy 210 235cid with a standard 3 speed transmission. I'm simply trying to remove the engine to put a 350 in It's place. I Can't disconnect engine from transmission ...I have taken all necessary bolts motor mounts etc.....but no matter how much jiggle and pull, the bell housing will not separate more than an inch or so from the tranny. The engine can jiggle a lot, enough to tell that it is free from obstruction. I also removed the clutch fork from the throw out bearing, but still cannot disconnect.... any suggestions??? Thanks!
     
  2. Hnstray
    Joined: Aug 23, 2009
    Posts: 11,566

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    You may be hangingup on the clutch disc splines. If you don't support the trans at the same angle as the engine is tilted, the splines often will bind in the clutch disc hub.

    Try keeping the eng/trans in alignment when seperating, the same as you would if installing the trans.

    Ray
     
  3. Mr48chev
    Joined: Dec 28, 2007
    Posts: 27,192

    Mr48chev
    ALLIANCE MEMBER

    I wonder if the pilot bearing might have welded it's self or froze to the input shaft on the trans and is hanging up on the clutch disk spline. Being able to move it that far before it hangs up sounds right for that.
     
  4. Hnstray
    Joined: Aug 23, 2009
    Posts: 11,566

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    Perhaps you can help the situation by removing the bolts from the pressure plate to the flywheel. In either my scenario, or that of Mr48chev, doing that would improve alignment and/or access.

    Ray
     
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  5. 62nova
    Joined: Jul 13, 2008
    Posts: 339

    62nova
    Member

    Big prybar.
     
  6. Hnstray
    Joined: Aug 23, 2009
    Posts: 11,566

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL




    :D noting your avatar.........are you recommending, or asking for, a big prybar? :D

    Ray
     
  7. Mr48chev
    Joined: Dec 28, 2007
    Posts: 27,192

    Mr48chev
    ALLIANCE MEMBER

    I was thinking big slidehammer but also thought about what Hnstray suggested on unbolting the pressure plate bolts and you should have enough room to see up in between the clutch and flywheel and see what the problem is.
     
  8. goose-em
    Joined: Aug 23, 2008
    Posts: 349

    goose-em
    Member
    from Louisiana

    I am curious as to how you removed the throwout bearing if the shaft is still attached to the motor?
     
  9. slimpick
    Joined: Aug 4, 2008
    Posts: 97

    slimpick
    Member

    I always remove engine and transmission as a unit for this reason. So much easier to separate and mate properly when both are out of the car.
     
  10. ffr1222k
    Joined: Nov 5, 2009
    Posts: 1,111

    ffr1222k
    ALLIANCE MEMBER

    I think he is saying he removed the clutch fork, leaving the throwout bearing on the transmission input shaft sleeve.
     
  11. 62nova
    Joined: Jul 13, 2008
    Posts: 339

    62nova
    Member

    Ha. I guess the avatar is a metyphor for the clutch.
     
  12. EXracer64
    Joined: Dec 7, 2011
    Posts: 226

    EXracer64
    Member
    from nj

    had this happen, two prybars on each side and work it out.
     
  13. black 62
    Joined: Jul 12, 2012
    Posts: 1,895

    black 62
    Member
    from arkansas

    good sound advice ---have at it and good luck...
     
  14. Had this same thing happen to me when separating a '37 Ford V8 from the trans.
    Combination of rust , grime and age. I made sure all fasteners were removed then went it SLOWLY. After several tries, using Liquid Wrench, etc, they separated.
    Keep at it. Remember take your time. Less chance of damaging either.
     
  15. Bill Nabors
    Joined: Jul 24, 2011
    Posts: 281

    Bill Nabors
    Member

    Have you checked to see if there are any bolts on the inside. I seem to recall hitting this but it has been fifty years ago.
     
  16. Hnstray
    Joined: Aug 23, 2009
    Posts: 11,566

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL


    There are two bolts into the tranny from inside the bellhousing on this model. I had thought about that too, but discounted it as the OP said he had "seperated them about an inch".......I reasoned that if the lower bolts were in place, they would not permit any movement, much less an inch.


    Ray
     
  17. Jamoke
    Joined: Sep 1, 2011
    Posts: 673

    Jamoke
    Member

    Yes like he said 100 % easier and cleaner where you dont brake your back pulling something on the ground or in the air
     
  18. studebaker eric
    Joined: May 9, 2008
    Posts: 1,514

    studebaker eric
    Member
    from Diablo Ca.

    Hook up the clutch linkage, and push in the pedal, see what happens. Might move the tranny a little. Make sure you got a jack, or sometng under it.
     
  19. GregCT.
    Joined: Jun 16, 2008
    Posts: 599

    GregCT.
    Member
    from CT.

    floor jack under trans. and lift the engine up and down a few times while pulling forward, it has to break free. The pry bars with the weight removed from the input shaft also will do the trick.
     
  20. meester_jamie
    Joined: Dec 20, 2012
    Posts: 9

    meester_jamie
    Member

    when I have encountered this... it has been rust on the pilot shaft, and it won't pass thru the clutch.. so you are pulling on the pressure plate springs and getting that "jiggle" movement... if you can get a wrench in there to undo the pressure plate, the trans will separate then... hope that helps
     
  21. COOP
    Joined: Mar 27, 2006
    Posts: 256

    COOP
    Member

    use a lil' C4........ just not too much. Oh, unless you wanna use it again.
     
  22. mr.chevrolet
    Joined: Jul 19, 2006
    Posts: 6,802

    mr.chevrolet
    Member

    i read your first post again. you do know that a V8 bellhousing isn't going to bolt to your original tranny right?
     
  23. sunbeam
    Joined: Oct 22, 2010
    Posts: 4,914

    sunbeam
    Member

    I've even had the pilot bearing stick on the input shaft and come out of the back of the crank instead
     

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