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Removing spicer 18 with warn overdrive

Discussion in 'Early CJ5 and CJ6 Tech' started by 64WILLYS, Mar 9, 2006.

  1. Mar 9, 2006
    64WILLYS

    64WILLYS GOT JEEP?

    Central California
    Joined:
    May 31, 2005
    Messages:
    6
    Anyone done this before?
    I'm just trying to remove the transfercase from the transmittion so that i can rebuild the t case. I have the main part of the overdrive removed and now I'm having a hell of a time trying to remove the OD planetary gears (barrel assy). After removing the retaining clip and then the special washer you are supposed to be able to remove a very tight fitting nut using a 1/2" socket extension(just the square part). the problem is when i try to loosen this nut, the whole engine turns no matter what gear i have the transmittion in. At this point the nut that i'm trying to loosen is not connected to the t case, so it does'nt matter what gear the t case is in. Any Ideas?

    -Mark-
     
    64WILLYS, Mar 9, 2006
    #1
  2. Mar 9, 2006
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
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    8,126
    Yup, it can Be A Bear :(.

    I used an air impact wrench last time & it loosened right off. Otherwise you'll have to find a way to stop the engine rotating, seems to me in Pre-Pneumatic times I found that bracing the rad fan gave enough extra drag to break the nut loose.

    H.
     
    Howard Eisenhauer, Mar 9, 2006
    #2
  3. Mar 10, 2006
    Posimoto

    Posimoto Hopeless JEEP Addict

    Minden, Nevada
    Joined:
    Aug 7, 2003
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    4,538
    If I'm not mistaken, at this point your T case is still connected via the planetary gear set. Put your T case in high range, block the wheels and try cracking the nut loose. If it still won't budge, go buy or rent an electric impact wrench, that'll get it loose. I got one from Harbor Freight. Pretty cheap and a lot easier to setup and use than an air impact. I've got both and I use the electric one the most. The other thing you can try takes two people. Put a socket with a breaker bar on the crankshaft damper nut to keep the engine from turning. It's kinda tight quarters though. Use 1st or Rev gear in the tranny.
     
    Posimoto, Mar 10, 2006
    #3
  4. Mar 10, 2006
    termin8ed

    termin8ed I didn't do it Staff Member

    Mason, MI
    Joined:
    Dec 22, 2002
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    4,422
    No. He's right. Once the OD is off, the tCase is basicly in neutral. Doesn't help any.

    What I've done before is take out one of the sparkplugs and fill the piston with nylon rope. When the piston comes up to the compression stroke, it will jam on the rope and not allow the engine to turn.
     
    termin8ed, Mar 10, 2006
    #4
  5. Mar 10, 2006
    Jim Wiseman

    Jim Wiseman New Member

    Palo Alto, CA
    Joined:
    Dec 3, 2002
    Messages:
    36
    Take the top of the trany off and put it in reverse and 2nd at the same time.
     
    Jim Wiseman, Mar 10, 2006
    #5
  6. Mar 10, 2006
    Ppilotmike

    Ppilotmike old JEEPer

    Oscoda Mi
    Joined:
    Oct 24, 2003
    Messages:
    142
    I use a socket on the front of the crank with a long breaker bar that I wedge into the frame channel
     
    Ppilotmike, Mar 10, 2006
    #6
  7. Mar 10, 2006
    termin8ed

    termin8ed I didn't do it Staff Member

    Mason, MI
    Joined:
    Dec 22, 2002
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    4,422
    That too.
    Knew you could do it with a T14. wasn't sure about the T90.
     
    termin8ed, Mar 10, 2006
    #7
  8. Mar 11, 2006
    64WILLYS

    64WILLYS GOT JEEP?

    Central California
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    May 31, 2005
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    6
    Well, i've got some good ideas. I'll write back soon to tell you guys what worked. Thanks to everyone!
     
    64WILLYS, Mar 11, 2006
    #8
  9. Mar 18, 2006
    64WILLYS

    64WILLYS GOT JEEP?

    Central California
    Joined:
    May 31, 2005
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    6
    Finaly I got it. After trying several things I noticed that the main drive pully on the motor had a large nut on the front of it. I had a second person hold that nut with a large crescent wrench while i turned the special nut holding on the warns planetary gears. once it broke loose I could almost unscrew it by hand.
     
    64WILLYS, Mar 18, 2006
    #9
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