How does the drive shaft stay in place? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 4 (permalink) Old 02-28-2017, 10:39 AM Thread Starter
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Question How does the drive shaft stay in place?

My post from last night described a clunking noise. I found out that it was the drive shaft that slipped almost off the bevel gear and was hitting the inside of the swingarm. I'm almost positive from my rebuild that I have everything together in the final drive correctly... But how does the drive shaft stay in place? Is it just the pressure from the differential pinion that causes it not to slip off?

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post #2 of 4 (permalink) Old 02-28-2017, 11:02 AM
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When you put the thing back together before did you remember to put the spring back in that fits between the rear end assembly and the back end of the drive shaft? Its function is to keep the drive shaft pushed forward so it doesn't slide forward/rearward. If it's not installed, that could be the cause of your clunking. When I reassembled mine after changing the tire and lubing the splines, I had it all together and was proud of myself until I looked down and there it was on the floor. DAMN! So everything came back off again so I could put it in where it belonged.

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post #3 of 4 (permalink) Old 02-28-2017, 12:26 PM
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Quote:
Originally Posted by snoopyonderdonk View Post
My post from last night described a clunking noise. I found out that it was the drive shaft that slipped almost off the bevel gear and was hitting the inside of the swingarm.
LOL.... that would do it! I actually forgot about about that damn little spring. I had to look it up. I do remember that little POS circle clip, though. And actually, if either the circle clip or the spring are missing you would end up with the your drive shaft slipping off. The spring holds it forward so that the U-joint doesn't slip off the tranny. the circle clip keeps that spring from pushing the drive shaft completely out of the draft shaft coupling. That coupling is what engages and disengages with the splines on the bevel gear. So depending on which end of the draft shaft is slipping off will be a clue as to which is missing. luckily, they are both located in the back, inside the coupling. unfortunately both mean you have to take you wheel off again.

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post #4 of 4 (permalink) Old 02-28-2017, 01:43 PM
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