I was riding around the coast this evening with a passenger, and suddenly we heard a scrape sound on each revolution of the rear wheel. Didn’t think much of it. I get home, and investigate. Sure enough, the bike vibrates loose every Allen bolt holding the rear sprocket in place! I hand tightened them but I need to really secure them. What do you recommend?

 

That looks like very aggressive threads. Shouldn't it be fine threads?

Also it seems that there should be a shoulder on the bolt for the depth of the sprocket. ls that an aftermarket sprocket?

 

not sure, couldn’t tell ya. The chrome belt adjuster cover is stamped KOREA inside so maybe aftermarket? I was hoping just to be able to loctite these bolts back.

 

What kind of bike? Did you buy it used? How many miles? You should have stopped immediately. Buy a lottery ticket.

 

98 Fatboy bought used 30,000 miles

 

Whoever works on that bike should loctite every fastener. I suspect you need stronger than blue on those. Maybe yellow?

http://www.type2.com/library/chemicals/loctite.htm

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Not arguing with Ron but I would probably try blue loctite and keep an eye on it. Also I would be darn sure that I had that size Allen wrench handy at all times. I prefer the 3/8 drive sockets myself when they can be used and practical.

 

I’m no expert. Hopefully someone who is will post.

Seek and you shall find!
http://loctite.sg/sea/content_data/L...tion_Guide.pdf

 

You got lucky....
https://www.hdforums.com/forum/dyna-...-new-post.html

get new bolts (those are cooked now) and loctite them

 

I once had a 1984 Yamaha 650 with a shaft drive that did that. I just tightened up the bolts evenly and didn`t even use a torque wrench. I don`t recommend that though.