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Old 03-07-2011, 10:31 PM   #5
Brtp4 OP
Yea, its a friggin L
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Joined: Sep 2006
Location: Bend, OR
Oddometer: 1,943
Disassembly Part 1: The Achilles Heel

Back when I was talking to the PO, I asked my friend in Sac to check one thing on the bike for me. The swingarm pivot bolt. He didn't do it properly, but was already doing me several favors, so I did not push it. This did worry me a lot because I had seen horror stories like this and photos like this. On XR250s and 400s, for whatever reason, the swingarm bushings freeze on the bolt, and make it difficult or impossible to remove. My feeling is that using the engine cases as support for the swingarm cooks the lube out and is at least partially responsible. In any case, it is the achilles heel of these bikes.

I really did not think I would have an issue, since my bike was fairly new, had not been submerged that much, and not even washed that often. I was kinda wrong:

I squirted things up, waited a day, and started by tapping on the nut with a plastic hammer, then a ball peen, then a mini sledge. Holy smokes, it would not budge. I then took an old extension and started wailing on it. STILL nothing. So I tipped it 45 degrees, lubed the heck outta it, and went at it the next day. This time I had my wife (bless her) turn the other side with a ratchet while I pounded. It finally came out:

Pretty surprising how dry and rusty it is, for a bike in that condition. Even left a pile of dust on the floor:

After a lot of wire wheeling. Bolt was fairly pitted:

(sorry, cell phone pic)

Just to be sure, I replaced the bolt and bushing because of the pitting. I probably could have reused them, but bought a new OE bolt ($65....f me.....) from Honda along with new bushings. I saved the old one, just in case. Bearings were fine, only the bushing-to-bolt interface was fouled. Greased everything back up and put the bolt in.

BTW, the extension I used is now too mushroomed to fit into a socket.



Bend, OR

Brtp4 screwed with this post 03-08-2011 at 01:15 AM
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