That you must replace rotor or pully bolts once they are removed?

Or am I getting Smoke blown up my A$$!!

Moe

 

HD is just covering themselves from any potential liability issues. I reused my rotor bolts after replacing my rotors - no problems. I've heard from others who have done the same thing.

Doug

 

What UGGA says may have some merit, but here is some food for thought. A few years back the company I work for had a test lab Rep. give us a lecture about reusing bolts and he said that after they have been tightened one time the threads had lost a certain amount of their strength. After two or more tightenings they would lose even moreand could cause failures.The man giving the lecture seemed very credible, had all the data, seemed to know all the answers . Days after this an older co-worker that didn't attend this training session brought up a good point. Why don't you put new lug bolts and new lug nuts on your car every time you pull a wheel off. Hmmmmm, those old guys can be pretty sharp sometimes.


Jeff

Semper Fi!

 

I would think that if your using a "torque to yeild" bolt, which is only ment to use once in its life to a specific torque. And in when its used to the correct torque, it has streched to a point that its yeild will not be attainable again in the future in another use. I'd say yes thats correct and do not re-use the hardware.

If you don't know what kind of bolt that it is, you can measure that length of the bolt removed to a new one.

With modern metals and technology, I'd feel safer now adays re-using a modern (non-torqu to yeild) fastener over again over that what was produced years ago.

Some general info:

http://www.xmission.com/~kd7olf/torque.html

 

My 06 Touring Service Manual says to replace the subject screws and bolts after "three (3) use cycles" (pg 2-14 & 2-14: Assembly ppgs 1. & 6.). This doesn't seem so unreasonable. However I personally would be more concerned with the condition of the threaded holes on the aluminum wheel hub after numerous reassemblies.

FBL

 

Is Harley Davidson saying these are torque yield bolts?? I can understand a TY bolt being used on a HEAD, but not a MOVING PART being TY bolts
are subject to failure from the get go...

And yea I have seen nuckle headed mechanics NOT use NEW head bolts, and it yo yo's on them...

So I'll get on board if HD say's they are... but if not the original ones will be inspected and re-used..
(you can see fatigue in the boltshaft on TY bolds)
But, that just my .02

 

How much is your safety worth? You definately lose some of the fasteners strength each time you reuse it. IMHO it's worth the extra money to just order up the bolts.

 

i agree, the bolts aren't that expensive. if you were doing a lot of parts swapping for 'testing' purposes, i might reuse the old bolts and then after finding the perfect (yeah, like thats gonna happen) combination, then replace with new.

 

Thanks for all of the replies.

The price wasn't the issue (I have a Harley!!!).

I just don't like to be lied to. If the service manual says every 3 cycles, how can the servicewriter say everytime. It's that "if he doesn't know then we will cash in on him" thing. I now know to look out for said service writer.

The thing is I took my bike in to get the rims, rotors, and tiresI just purchased installed. The guy seesnew chrome rims and says "You know once we take these rotors and pulley bolts outwe can't re-use them, so you might as well replace them with the CHROME ($$) ones. Granted, I was going to replace the front with chrome bolts anyway...its just the fact that I really didn't need to.

They replaced the rear rotor bolts with stock style bolts ($6.25) cool, but the replaced the pulley bolts with chrome ones ($31). WHY?? I have a SG you cant see the damn bolts and I didn't ask for them in chrome. I didn't realize this until I got home and looked at the reciept and wondered why parts were charged at ($63). I will be back down there this weekend looking for my $31 at least $20 of it.

Not the cost, but the Principal.

Moe
Thanks for letting me rant.

 

My local hardware store just put in a large selection of chrome hardware and the bolts are all $2 and up. They would be higher than MOCO.