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Message started by rl153 on 09/20/12 at 11:23:57

Title: Exhaust Bolts
Post by rl153 on 09/20/12 at 11:23:57

I have a question about how to extract the exhaust bolts that go into the motor. I want to put anti seize grease on them but they have been in since it was new in 2005 . Should I spray penetrating oil on first, or should I do it dry with the engine hot or cold? What is the best way ? Thanks!

Title: Re: Exhaust Bolts
Post by verslagen1 on 09/20/12 at 11:35:20

They should've been installed with anti-siez from the factory.

but shouldn't take more than 20-30 ft-lbs to remove.

more than that I'd look for some pene oil.

Title: Re: Exhaust Bolts
Post by Gyrobob on 09/20/12 at 11:49:42

If they really do have anti-seize compound on them, penetrating oil won't do much,.. and, as V says, they use that stuff at the factory, so if it has never been apart,..

BTW, ATF makes for as good a penetrating oil as you will find anywhere. You probably have some handy, but if you don't, go get the cheapest you can find,.. and you'll have a lifetime's supply of penetrating oil for a couple bucks. It makes really good gun oil too, but some folks don't like it on guns because it smells icky.

Title: Re: Exhaust Bolts
Post by rl153 on 09/20/12 at 12:24:28

Thanks,they came out.

Title: Re: Exhaust Bolts
Post by Cavi Mike on 09/20/12 at 16:51:21

112F2439343934560 wrote:

BTW, ATF makes for as good a penetrating oil as you will find anywhere.

ATF alone isn't, ATF+Acetone is, but the reason why you don't use that is because it eats paint - obviously.

Title: Re: Exhaust Bolts
Post by Gyrobob on 09/20/12 at 16:53:37

ATF alone has worked fine for me for the past half-century or so as a penetrating oil. Penetrates well, needs no mixing with anything else, and is cheapcheapcheap. I have read about mixing it with acetone, but what a bother.

Title: Re: Exhaust Bolts
Post by rl153 on 09/20/12 at 20:16:38

One more thing, I read your opinions that these bolts should be tighened up with the bike cold. I tighened mine up with the bike a little warm but not hot,and anti seize grease . That shouldn't matter ,should it? I didn't really over tighten them ,just snug ,and a hair more. Thanks!

Title: Re: Exhaust Bolts
Post by justin_o_guy2 on 09/20/12 at 20:26:05

IDK if its gonna be a problem. Ive always just done it when the bikes cold.

Title: Re: Exhaust Bolts
Post by Gyrobob on 09/21/12 at 05:19:36

2D2437282F2470737878410 wrote:

Whenever you take something fundamental like that apart, and then reassemble it (warm or cold) you should always ride the bike for at least a short trip, let it cool off for several hours, and then recheck the torque on everything.

Title: Re: Exhaust Bolts
Post by Digger on 09/21/12 at 20:45:30

636A7966616A3E3D36360F0 wrote:

I'm thinkin' that the main problem you are trying to avoid by not torquing fasteners that thread into aluminum components when said components are hot is that the possibility of pulling out threads from bolt holes in the hot aluminum is noticeably greater than when said aluminum components are cool/cold.