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Old 05-11-2005, 09:26 PM
ahighland's Avatar
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Default Showa fork trouble

     

I'm replacing the fork seals on my 03 CR250. I cannot seem to get the tubes apart. I've done this once before and didn't have nearly as much trouble. I already have the wiper and snap ring pulled down, but when I go to pull the inner tube out, it just clanks and gets stuck. Any ideas?
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Old 05-11-2005, 09:50 PM
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Default Re: Showa fork trouble

Your guide bushing is probably worn and is sliding over the top of the slider bushing and hanging up. It's going to be a bugger to get them apart but you will just have to keep hammering away at them. Your bushings will be torn up and need replacing. Nothing you can do about it.

You can try heating the outer tube with a propane torch around the guide bushing area but I suspect it won't help. Just keep going until they come apart I guess. when you knock it loose after they hang up rotate the tube a bit and hammer away again.
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Old 05-11-2005, 10:29 PM
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Default Re: Showa fork trouble

Dang, that sucks Good luck with it.
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Old 05-11-2005, 10:42 PM
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Default Re: Showa fork trouble

It CAN really suck, but there is no easy way around it. I've dealt with it a few times myself here, last one was a 99 RM 125. Sometimes it's like the seals bond to the tube almost.

All you can do is to make sure you use new bushings every year and wipe a little grease on the outside of the seals when you put them in so they come out easier next time.

It's quite rare that Showa bushings wear. They are very good about not wearing bushings but ideally they should be replaced every year at least.
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Old 05-11-2005, 10:53 PM
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Default Re: Showa fork trouble

Thanks for that info. That's good to know. next time I do mine I'll have to invest in some new bushings. How about the slides and guides? How long do they typically last in the forks?
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Old 05-11-2005, 11:33 PM
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Default Re: Showa fork trouble

In the Showa Twin Chamber forks they normally seem to last a long time. I've seen bushings in them that look good after several years of use.

It's highly likely his bushings were fine but if the seal won't budge then the guide bushing gets forced up onto the slider bushing and sticks. This will happen easier if the bushings are worn. He will end up stripping all the teflon off his slider bushing in order to get them apart unless that seal finally gives way and lets it come apart.

All I can suggest is when you put them together smear some grease around the outside of the guide bushing and oil seal before you install them.
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Old 05-11-2005, 11:35 PM
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Default Re: Showa fork trouble

Cool, thanks
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