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  1. #1

    Join Date
    Apr 2019
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    8

    Default Have I missed something here .. 51 Panhead clutch nut

    G'day .. Have a 51 Pan with a belt drive enclosed BDL I think , Have just changed from 23 to 25 tooth on final drive . Everytime I attempt to tighten the clutch nut up it locks the hole gearbox up , if I back it off final drive and clutch hub spin but bugger all torque on the clutch nut .. I've tried both sides of the 25 sprocket to no avail with internal primary cover and without .. Am I missing something here a washer or spacer between clutch nut and sprocket ?
    The front engine drive shaft is a 55 splined I'll get to that once I sort this out .. I was half cut when I pulled it apart
    Cheers









  2. #2
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    Where is your little L shaped clip?????????

  3. #3
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    Quote Originally Posted by Froger View Post
    Am I missing something here a washer or spacer between clutch nut and sprocket ?
    No spacer required....... Do you own a manual?????????? If not you know you can down load one for free.......

  4. #4
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    The sprocket nut with seal is standing too proud and hitting the back of the clutch hub. You must use the early style sprocket with counterbore on the back side and I assume you have that correct. Take out the sprocket nut lock plate and use red loctite on it. That little extra space should solve your problem.

    Jim

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    Quote Originally Posted by JBinNC View Post
    The sprocket nut with seal is standing too proud and hitting the back of the clutch hub. You must use the early style sprocket with counterbore on the back side and I assume you have that correct. Take out the sprocket nut lock plate and use red loctite on it. That little extra space should solve your problem.

    Jim
    Yea Jim I thought of that also but you would figure if it was on there before and it worked something must have changed???????????? I guess we need more info of what all he changed????????? What ya think??????

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    Quote Originally Posted by Tattooo View Post
    Yea Jim I thought of that also but you would figure if it was on there before and it worked something must have changed???????????? I guess we need more info of what all he changed????????? What ya think??????
    Shiny new sprocket nut lock plate.

    Jim

  7. #7

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    Quote Originally Posted by Tattooo View Post
    Where is your little L shaped clip?????????
    Clips in there Tattoo and I also have an early manual ..

  8. #8
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    Think I would get rid of the lock plate and just use green locktite ...
    Might have the room for the supernut then

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    Quote Originally Posted by Dragstews View Post
    Think I would get rid of the lock plate and just use green locktite ...
    Might have the room for the supernut then
    What I said. We've been in this movie before, right?

    Jim

  10. #10
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    Quote Originally Posted by JBinNC View Post
    Shiny new sprocket nut lock plate.

    Jim
    How old was the old one????????????? 2 months 2 years?????? Way more info needed.............

  11. #11

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    Apr 2019
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    Jim and Tattoo use were correct .. I pulled the lock washer out and mocked it back up and wouldn't you know that little distance let it all spin again .. So theoretically the clutch assembly wasn't tight to start with as I had bugger all pressure to release the nut and the hub .

    Tattoo I don't know as I bought this bike 2 years ago from a deceased estate from Paradise California and had it shipped over to Australia , the bloke had owned the bike since 1985 so basically i'm sorting it out as I go , really don't have much previous info on it ..

  12. #12

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    Cheers for your input Dragstews , yeah that was the problem ...

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