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  1. #1

    Default Factory 4 Speed Final Drive Pulley Nut Torque

    1984 FXSB Lowrider. Buttoning up a transmission overhaul and I am running into a possible discrepancy with the service manual.

    80-90 FT LBS is the torque value stated for Late 83 and up final drive pulley nut.

    Then, I find this. Pic is blurry so I will post a direct link below. Which value should I follow?



    https://books.google.com/books?id=wo...harley&f=false

  2. #2

    Join Date
    Aug 2009
    Posts
    2,917

    Default

    80 ft lbs and red locktight
    Ditch the tab washer to gain thread engagement
    If sprocket has a threaded hole, install "safety" screw

  3. #3

    Join Date
    Dec 2018
    Posts
    1,723

    Default

    I use 120ft.lb. And I keep the lock plate and use red loctite (belt and suspenders).

    If you don't get it tight enough, it will come loose, and then it will leak.

    Jim

  4. #4

    Default

    Thanks Sky and Jim.

    The goal, and the reason for the teardown, is to ensure LEAK FREE!

    I'm hoping to have achieved this by:

    1. The Saddlebagrail fix has been applied, new 4th gear bushing fitted (old one was SLOPPY).
    2. I removed the 4 case mounting studs, applied red loctite and re-installed
    3. JAMES Supernut
    4. New O-rings and seals throughout

    Currently I am tackling the kicker bushings/seal. Mine is sloppy and was a source of leakage. Hopefully new bushings and seal will get it leak free. Shaft is OK. I don't use kicker that much with the use of a Tech Cycle starter but I would like to keep it.... a Shovel should have one!
    Last edited by garystaven88; 03-28-2020 at 7:48 AM.

  5. #5

    Join Date
    Dec 2018
    Posts
    1,723

    Default

    A leak free four speed is the Holy Grail. No one has found one yet.
    If it don't leak now, it will eventually.

    Jim

  6. #6

    Default

    Quote Originally Posted by JBinNC View Post
    A leak free four speed is the Holy Grail. No one has found one yet.
    If it don't leak now, it will eventually.

    Jim
    Besides, that’s how you know you have fluids in there! Haha

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