Automatic primary chain tensioner

Discussion in 'Dyna Models' started by Dswartz, Oct 17, 2011.

  1. Dswartz

    Dswartz Active Member

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    I just installed an automatic primary chain tensioner in my '02 Superglide. It seems like the chain is too tight now. I followed the instructions the best that I could and it says that if the tensioner moves up and down when you flex the chain then you are good. The tensioner will move up and down slightly so I'm assuming I did it correctly but there doesn't seem to be hardly any loose free play at all. Is that normal with the auto adjuster? I have the bracket adjusted as low as it will go. The only thing I could try to correct is to reset the tensioner.
     
  2. Jack Klarich

    Jack Klarich Expert Member

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    How many miles? I yacked to a friend who is a tech at a Stealership about this once and he said they always put a new chain on at the same time, Idont know if this helps
     
  3. Dswartz

    Dswartz Active Member

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    22,000 on the chain. The tensioner came used off of ebay. It apparently came off a wrecked bike with less than 500 miles. Whether thats true or not i dont know but it was in good shape.
    [​IMG]
     
  4. Dswartz

    Dswartz Active Member

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    Just got back from my first test ride with the tensioner. I'm still not sure if it is too tight or not but I will have to admit it's shifting smooth as silk. The bike has never shifted so nice. I'm not sure if that's due to the tensioner or not.

    However, I have noticed a slight whining noise coming from the primary with the engine running. I only notice it when Idling and sticking my head close to the primary. It's not super loud but I hope it's not an indication of a primary that is too tight. It could have been there before as well but I never noticed it.
     
  5. glider

    glider Veteran Member

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    You didn't mention which tensioner you installed but the auto tensioners will make a bit of noise when operating. If the noise is excessive then I would recheck the tension on the chain.
     
  6. Dswartz

    Dswartz Active Member

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    I have the Harley tensioner that came stock on all of the newer bikes. Is there a way to check the tension to ensure that it is working properly? I have almost no free play at all but the tensioner will flex slightly as I flex the top of the chain. I can only move the chain approx 1/4in to 3/8in or so, and that's with pressure when cold. Seems tight to me when compared to the manual tensioner. Is there a measurement that I can test it with to ensure it is properly adjusted?

    The noise is not terrible but noticeable at idle.
     
  7. glider

    glider Veteran Member

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    The stock HD auto tensioner will keep the chain rather tight compared to past models. There's usually no slack in the chain to be measured when using one of the newer type retrofits in an older bike. I personally don't like the new design because they run too tight and can cause damage to seals and bearings but that's just my personal opinion and they will have a habit of being noisy because of the tightness.
     
  8. Jack Klarich

    Jack Klarich Expert Member

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    There is nothing in the owners manual, I would guess 3/8 to 1/2 inch should be good