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  #1  
Old 25-09-2008
AmiSMB AmiSMB is offline
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Default CAT SX Shocks

Has anyone found that the shocks are a bit leaky? After I built the front shocks with 25wt I found the spring holder covered in oil after being left overnight. After I rebuilt them with 30wt it seemed to take longer to come through before the bottom of the shaft showed signs of oil. I have taken off the rear shocks to put o-rings to avoid the shaft hitting the diff output cups and fond the read shocks are showing the same issue. Not sure if I have done anything wrong as I followed the manual. Does anyone do them differently? Should I use some shock slime to help the seal?
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Old 25-09-2008
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Haven't raced mine yet, but been sat here static for a week and not leaked a drop.
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Old 25-09-2008
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The O'rings should swell a tad and seal. It may just be newness, and mine have a little oil on the cups too - just a little.

If it persists, rebuild them with AE green slime.
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Old 25-09-2008
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Any of you guys build them with Northy's whities?
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Old 26-09-2008
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I did look at using some whities but I think the sizes are too different to make a decent fit.
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Old 26-09-2008
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I have just gone around and slimed all of the shocks. All good to go now
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Old 26-09-2008
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Not that I have a Schumacher but Chris is right, I always soak new seals for 1/2 hour before building kit up to avoid them leaking for the first couple of days.
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Old 26-09-2008
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Thanks Dan I never knew you should do that. I put shock oil over the o-rings as I put them in but it makes sense with them swelling to make a better seal.
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Old 26-09-2008
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Just checked mine that have been built for 4 days and the spring cups are bone dry do as dan and chris have said, i also soaked the o rings
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Old 26-09-2008
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I think some of the team have been using my o-rings, but not 100% sure.....

G
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Old 26-09-2008
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I've used whities in mine, as i noticed with the blue Schumacher ones the shocks were leaking a little.
Didn't know about the soaking tip though, so it looks like i'll be stripping and re-building the shocks for the 3rd time, before i've even run the car
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Old 26-09-2008
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Quote:
Originally Posted by Northy View Post
I think some of the team have been using my o-rings, but not 100% sure.....

G

Yeah thought i may as well use the ones i bought , didn't fancy eating them.
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Old 26-09-2008
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i pinched a few off matt
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Old 26-09-2008
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Quote:
Originally Posted by frogger View Post
Any of you guys build them with Northy's whities?
I did Mmmmmm.... schmoooooth
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Old 27-09-2008
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Never had an issue on the Schumacher Blue ones, must admit.

Si
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Old 27-09-2008
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After soaking the blue schumacher ones in oil overnight, they have swelled up much more than i thought they would, hopefully no more leaks
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  #17  
Old 27-09-2008
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Can they swell to the point where they cause binding in the shock?
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  #18  
Old 27-09-2008
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Again not Schumacher shock specific but over a very long time (months say) they do keep swelling up a little which causes more friction that normal which is why you should change your seals as a matter of course every few months say (some do it even more).

When I rebuilt my Losi shocks 1/2 way throughout the outdoor season and went from 3 month old Losi ones to new (soaked) Nortech Whities, the difference in friction (stiction) sliding them in your hand was very noticable.
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Old 27-09-2008
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This year ive changed the seals every meeting. As Dan says, u don notice the difference.
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  #20  
Old 08-10-2008
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Question for si or matt, What length shocks do you run for indoor and outdoor ? Is it used as a tuning aid for droop ?
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