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  #1  
Old 01-02-2004, 05:52 PM
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Default Rear Shock Tear Down

     

Hey Everybody-

I am asking how to get the shock shaft out of my shock to put new seals and bushings in it. Bike is a 1997 RM 250 with Showa components.

I have removed everything that I could besides the screw on the bottom of the shock because I read that you shouldn't take it off. Why can't I take it off?

Thanks
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  #2  
Old 01-02-2004, 06:02 PM
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Default Re: Rear Shock Tear Down

Alex... I don't have an answer for you, but I'm sure someone will.

Just wanted to say HEY! and welcome to ATM!
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  #3  
Old 01-02-2004, 06:16 PM
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Default Re: Rear Shock Tear Down

Not sure why you don't want to take the screw out, but don't.

Sorry no help either, but there will be someone that will.

Good Luck and welcome to ATM.
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  #4  
Old 01-02-2004, 07:10 PM
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Default Re: Rear Shock Tear Down

You don't need to take the screw out for what you want to do.

To remove your shaft assembly...

release nitrogen pressure
Knock the dust cover loose on the shock
depress shock seal head and remove exposed clip
depress bladder cap to expose circlip
remove clip
remove bladder cap/bladder
remove shaft assembly

If you have never done this before I advise you find somebody to watch the first time. It's easier to screw things up then you think especially on a Showa. You have to grind the peening just right on the shaft nut or you will ruin the shaft. While it is easy after you do it a few times it's really easy to mess it up too. Find somebody that you can pay to do the job this time as long as they will let you watch and ask about it. Some shops won't allow it for insurance reasons or because they don't want to teach you.
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Old 01-02-2004, 07:18 PM
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Default Re: Rear Shock Tear Down

Hey shocknut, what exactly is that screw for?
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  #6  
Old 01-02-2004, 08:10 PM
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Default Re: Rear Shock Tear Down

I agree with Shocknut. If it's the first time find someone with experience on this. Suspension isn't the easiest thing on a bike. Good luck !!
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  #7  
Old 01-02-2004, 10:50 PM
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Default Re: Rear Shock Tear Down

Hmm...is the dust cover what the seal is in? If so, how do I get it off?

Thanks
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  #8  
Old 01-02-2004, 11:17 PM
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Default Re: Rear Shock Tear Down

Alex, I suggest you take Shocknut's advice and let someone do it for you...

Rebuilding Downloads

Last edited by Tdub; 01-02-2004 at 11:29 PM.
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  #9  
Old 01-03-2004, 09:22 AM
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Default Re: Rear Shock Tear Down

drman

I would have to agree with the others, and take shocknuts advise also.
I do understand the wanting to learn, but as shocknut has stated one mistake and your out some major deniero.

Russ
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  #10  
Old 01-03-2004, 09:46 AM
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Default Re: Rear Shock Tear Down

From the sounds of that proceedure I would take it in and pay someone to do it.


BTW, what IS that mysterious nut for that no one ever wants you to touch?
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  #11  
Old 01-03-2004, 01:05 PM
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Default Re: Rear Shock Tear Down

I was kinda wanting to take it in, but there are really not alot of service shops here that rebuild for some reason...I already have the whole thing tore apart besides the shaft and the shims and stuff, and I guess I am going to hafta grind off the top of the shock shaft so I can get the nut off?

I want to know what that screw is for too, because that could really simplify this job if I could take the bottom off...lol

Thanks
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  #12  
Old 01-03-2004, 05:36 PM
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Default Re: Rear Shock Tear Down

The screw has nothing to do with getting the clevis off. (If we are thinking of the same screw).
To get the clevis off you will need something to hold the shaft ,so you can turn the clevis. You need to be careful with this procedure as to 1) not damage the shaft 2) not damage the threads on the shaft or clevis. I have seen people try to get these off and strip the threads. 3) upon reinstallation of the clevis you need to make sure that you set the shaft back in the clevis at the right depth in order to assure your rebound will work.
I personally don't recommend this way of getting to the seal head.

Russ
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  #13  
Old 01-03-2004, 06:13 PM
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Default Re: Rear Shock Tear Down

Ok, so I hafta grind the shaft above the nut in order to get this stuff off?
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  #14  
Old 01-03-2004, 06:30 PM
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Default Re: Rear Shock Tear Down

drman,

Yes you have to grind the peen off the nut, On the showa there is a stamp on the top of the nut, you will need to grind this stamp off to allow the nut to come off. the problems is the stamp also holds the needle seat for your rebound. If for some reason you would take too much off it will be ruined.
You need to grind the showas ( nut) in a angle and make sure you leave enough material at the top of the shaft to retain the needle jet.

Russ

Last edited by suspension nut; 01-03-2004 at 06:32 PM.
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  #15  
Old 01-03-2004, 10:06 PM
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Default Re: Rear Shock Tear Down

Dang that does sound scary. drman, if you do it, good luck with it. I hope it works out for you.
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  #16  
Old 01-03-2004, 10:27 PM
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Default Re: Rear Shock Tear Down

The nut has 2 stamps...do I hafta grind both?

I don't see how the nut is holding anything...I loosened it and it moved, it just stops at a thread and won't move anymore.
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  #17  
Old 01-03-2004, 10:42 PM
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Default Re: Rear Shock Tear Down

yes the two stamps. Its actually the peen over the nut.
I would not recomend you trying to loosen that nut with out the grinding process you will strip the threads and possibly weaken the shaft at the threads, and will break . Good luck!!!!!!!!!!!!
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  #18  
Old 01-03-2004, 10:50 PM
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Default Re: Rear Shock Tear Down

And i thought my ttr125 shocks were hard to work on! Man i have alot to learn!-lol GOOD LUCK FROM US IN NJ!
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  #19  
Old 01-06-2004, 07:31 AM
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Default Re: Rear Shock Tear Down

Got it apart, but one question..Where is the bushing?
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  #20  
Old 01-06-2004, 09:05 AM
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Default Re: Rear Shock Tear Down

the bushing and the shock shaft seal are in the seal head.

RUSS
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