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Problems after Nylon Gear Replacement

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  • Retrorockit
    replied
    With the gear in backwards, or the clutch in the gear bacwards. You would be driving the motor bacwards through the reduction gear (hard pedaling) and the motor would freewheel under power (no drive).

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  • dalexander
    replied
    I was speaking to a specialist and what he said sounds like it might be right, he said if there is not much air flow over the motor and you are straining it then its likely the "coil" (what he called it) has overheated and cause it to fail in producing the power or enough power, its probably there that I'm feeling the resistance when trying to turn it if the Nylon gear has been replaced. To be fair I was towing 2 kids on huffy sliders up the hill, which was typically ok, however one of the kids this time was slightly bigger and it ground to a a halt near the top. Im thinking its a replacement motor now :( but thanks for your suggestions.

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  • Retrorockit
    replied
    There is an arrow on the roller clutch race showing which way it turns.

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  • AZguy
    replied
    Just visualize which way it "should" turn based on the the crank turning forward - I recall doing that when I did a teardown and lube

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  • dalexander
    replied
    Can you get the nylon gear in backwards? I was looking at it to see what way it should go in but at a visual there was no "put it this way" and when I turned it up side down it looked like the nylon ribbing was still going the same way, so thought it didnt matter. I will pull a part again and have a look at the bearings thanks.

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  • Retrorockit
    replied
    Roller clutches can be fussy about lubrication. Idealy they would operate in a light weight oil bath. But they prefer light grease, around 50% full, and no anti friction additives. Too much grease keeps the rollers from moving to lock up. So don't pack it full of heavy teflon lube!

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  • AZguy
    replied
    I think I heard of someone getting the nylon gear in backwards

    I've also heard of folks that managed to have the clutch in the gear stick after installing and that would explain the difficulty pedaling but not loss of "power"

    It should turn freely on the shaft in one direction and engage the shaft in the other (when the motor is turning)

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  • Retrorockit
    replied
    Nylon gear problem may have been related to a bearing issue. Check the bearings related to that shaft. I'm just basing this on what people are finding on the TSDZ2 forum. I've had zero issues with my BBSHD. So others may know more about this than I do.

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  • dalexander
    started a topic Problems after Nylon Gear Replacement

    Problems after Nylon Gear Replacement

    Could use some help here fellas, I had to replace the Nylon gear due to stripping it out, but find afterwards that I'm not getting power that I used to. After putting it together, when doing throttle only it fluctuates between 200 and 300 watts and up on stand wheel spins to 60km. When I test it with my big ass on it, it will try to power but doesn't have enough to push it anywhere. I have noticed also that its really stiff to push the peddles around, more than normal. I have replaced the clutch, but wonder if something else has broken to cause it not to power that well. HELP!
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