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Rocker Arm Bolt AAARRRGGGH!!!
Posted: 05:29 pm Jul 24 2020
by GOT WOODS?
So I'm trying to service my rocker arm bearings and am finding it impossible to get the rocker-arm-to-frame bolt out. The way that it is sitting in the frame makes it impossible to get a direct hit on the bolt to drive it out. Anybody have this issue and found a good way to get this out? I'm thinking of heating both ends of the bolt up to get them to expand enough to maybe stretch the bolt hole in the bearing spacer and break the rust that is presumably holding the bolt in, then let it cool down and beat on it as well as I can. Anyone ever try this? Anything to watch out for? Thanks!
Re: Rocker Arm Bolt AAARRRGGGH!!!
Posted: 04:25 pm Jul 25 2020
by kdxdazz
Do you mean swingarm bolt? What is the rocker arm bolt
Re: Rocker Arm Bolt AAARRRGGGH!!!
Posted: 04:30 pm Jul 25 2020
by kdxdazz
If you are meaning swingarm bolt, lay the bike on its side and spray the bolt with penetrating oil. Let it sit overnight then hit with a brass punch and hammer, if you get some movement lay the bike on its other side, and repeat the process, keeping doing this until you work it free. Heating the bolt will do nothing as the rust is at the swingarm sleeve, bearing, and swingarm bolt, the heat won't penetrating that far
Re: Rocker Arm Bolt AAARRRGGGH!!!
Posted: 05:10 pm Jul 25 2020
by pumpguy
I think he's meaning one of the bolts that go through the 39007 UNI TRAK suspension arm. It's been awhile since I did mine, but don't recall having any problems.
Re: Rocker Arm Bolt AAARRRGGGH!!!
Posted: 07:25 pm Jul 25 2020
by doakley
Penetrating oil and patience usually works
Re: Rocker Arm Bolt AAARRRGGGH!!!
Posted: 09:39 pm Jul 25 2020
by KDXGarage
yep, what doakley said
I cut one out before. Totally not fun.
Re: Rocker Arm Bolt AAARRRGGGH!!!
Posted: 06:48 pm Jul 27 2020
by bufftester
Oil and heat.
Re: Rocker Arm Bolt AAARRRGGGH!!!
Posted: 04:00 am Jul 28 2020
by tucker
use heat if you can, or get an open end wrench on it and hit it with a rubber mallet after applying some penetrating lube.
Re: Rocker Arm Bolt AAARRRGGGH!!!
Posted: 01:43 pm Sep 03 2020
by MoonStomper
I just dealt with this yesterday. Mine was really seized (not my fault I swear - I just bought it!). After removing the lower chain roller guide, I put a shallow impact socket on a 25" Harbor Freight breaker bar on the left (bolt head) side, and a box wrench on the right (nut) side. Came right off.