lower fork bolt spinning

Akastus

Been Around the Block
Hey all,

This is the SECOND time this has happened to me, first time was an 81 cb750. I am currently working on a 75 cb360t (replacing fork seals) i have the fork drained and everything, but when i go to remove the allen head bolt on the underside of the bottom tube (in order to separate the two halves) it just spins... What am i doing wrong? and is there some way to get it to come out? It isnt fully unscrewed, it is still holding onto the little piston tube on the inside.

Thanks
 
This happens when you take the leg apart as the cartridge inside isn't attached to anything.

Put the leg back together, compressing the spring inside. This will put enough pressure on the lower cartridge that you can spin it off (an electric/air impact driver is best), then take rest of leg apart and you are done.
 
Also typically the procedure normally involves a long socket extension and the appropriate sized socket to hold the dampening rod inside the fork lower which is what that bolt on the bottom is threaded into.

At least that's the way it is on the XS650. Can't remember how my CB forks came apart.

Having the forks together does help as the spring tension helps prevent the dampening rod from turning but its not perfect and putting it back together may prove difficult when torquing the bolt and sealing the copper washer (get fresh ones).

An impact wrench helps in this process too (removal only to break it loose).
 
on most of the older honda and some of the newer ones

you can put a pin of almost 1/8 or a bit bigger thru the drain hole in the side of the fork

then rotate the fork bolt slowly and the pin will push into one of 4 holes in the valve extension rod

you can then work the bolt loose by running it in and out
 
GoldWing write-ups say to use a broom stick down the leg. I have been successful with 3/8 air impact gun and long Allen, and not needed the broom stick. If you don't have a long Allen set, sacrifice a regular Allen, removing the short leg and using a socket to drive the long end. Don't use a ball driver, as it will put too much stress on too small an area.

Sent from my LePanII using Tapatalk 2
 
Thank you all for the tips! I will be trying them out tomorrow. This community is pretty awesome, i must say!
 
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