View Full Version : Can anyone rebuild a rear shock??
likestrikes
10-10-2003, 07:44 AM
There is no information in my Clymer for my 85 250R but maybe in the Honda Service Manual. Is it really that hard?? Even if you had to buy the tools, whats the big deal with a rebuild - not a valving change. I have a huge cylinder with nitrogen and my refrigeration gauges can be purged and go up to 350 PSI with a one way valve. I read about a guy that did them for 75$ with an oil change and seal and nitrogen - as long as the shaft was goog. Just curious if a do it yourselfer can do it. Thanks!
Tecate performance
10-12-2003, 04:23 PM
i've got an oem manual. for 85 the psi is 185-230. it says to use atf, which i think is around 5w in shock fluid. just an oil change doesn't appear to be too difficult. the only special tool they list is for removing the compression adjuster from the reservoir. but you wouldn't have to do that for just changing oil.
then you fill and bleed the air from the shock by pumping it. then fill the reservoir hose, and then the reservoir body. the only tricky part would be getting everything together without getting air in it.
likestrikes
10-13-2003, 07:50 AM
My shcock Is almost showroom condition - sat for about 12 years inside.However, this caused the rubber bottoming stop to rot and desitegrate away. Now Ihave no bump stop and a ring that will jingle around and ruin my chrome shaft - I have to do something and that requires it to come completely apart. So as nice as it is, it is useless and junk!
Tecate performance
10-13-2003, 11:30 PM
in your case you'll need more than a simple oil change/recharge. to replace that bumper you have to remove the seal pack and shim stack from the shock shaft.
maybe you could try a rubber bumper from a car strut, slice one side, and squeeze it over the shaft. you can remove the spring easily to do this.
or you could cut the ring off.
Black Sheep
10-14-2003, 08:52 AM
rebuilding a shock is not something i would recomend a at home do-it-yourselfer attempt without previous experiance or someone to teach you. of all parts of a motorcycle/ATV this is probably the last thing most profesional mechanics learn how to do. they are complicated and easy to mess up. taking it apart and putting it back together is one thing doing it right is another. before you work on your own shock that you plan to use on your primary vehicle i would practice on another shock, taking it apart and studying it a learning about them.
if you can find some one to rebuild a shock for 75.00 i would jump on that as the going rate is about 150.00 add a new bump stop and your looking at about 175.00
if you can't find someone to rebuild it for you i can do it myself.
likestrikes
10-14-2003, 09:59 AM
I bought a piece of polyurethane 90A durometer. I have to go to my old shop and turn it on the lathe, slice it and give it a shot - what do I have to lose as it's a perfect shock otherwise?
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