Date: Sat, 22 May 1999 09:31:34 -0400
Subject: Re: Gas Gas  Water Pump Seal
From: Chris L Johnson 

On Fri, 21 May 1999 22:53:37 EDT Ez2endo "at" aol.com writes:
>Hi Guys,
>     Anti-freeze in my oil  leads me to believe my water pump seal is 
>leaking. after you remove the water pump cover and rotor, how do you get the 
>seal out? Hope you guys can help.
>Thanks
>Chet   \\\0tO
>94 JT25

A friend had a perpetually-leaking water pump seal that caused the "milk
shake" effect to the trans lube.  Turned out to be an early Gas-Gas
problem (this was a `92 to `94, possibly) where the water pump shaft was
not heat treated so the seal would wear a line in the shaft and/or the
shaft was undersized.  Even a new seal would not hold for long.  Some
solutions:  New seal, perhaps pushed in shallow to a position where the
lip is just off the wear line.  If there is no wear line, just a new seal
and if that leaks, possibly the shaft is under sized and a new shaft
woudl work?

I don't know this problem intimately, but I thought I'd throw these
thoughts out there so they can be considered.  Anyone know the real
problem and the perfect fix?

Chris Johnson, Director of Engineering
College Park Industries, Inc.
papazit "at" juno.com (home address)
chris "at" college-park.com
www.college-park.com

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There's another repair possibility. Automotive outfits,
like NAPA, carry gadgets usually called Easy-Seal,
Shaft-Renu , or (insert goofy name of choice). They're
short lengths of ground very thinwall tubing, sized on the
I.D. to fit the shaft. Only a few thou. wall thickness, you
Loctite them on to a worn shaft, thereby presenting a new,
smooth O.D. to the seal.
Rich

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In 94 some of the seals on the GG water pumps were installed backwards.
This is probably not the case with yours.  Nor do I think you have
undersized shaft, or worn shaft, etc.  Probably just a worn seal.  Not
saying it COULDN'T be the shaft, however.  Change the seal first.

Your question was how to get the seal out.  Seems to me the easiest way is
to pull the large clutch cover completely off.  You should be able to pop
the seal out from the back side.

Be sure to install the seal with the spring visible from the coolant (water
pump) side.  That's the high pressure side.

Northern Utah Trials

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Gas Gas has a new seal, impeller kit that replaces the stock, defective
part, that completely cures this problem. I had the same problem with our
160, just couldn't keep a water pump seal in it, and finally Jim Snell
came to the rescue with a new replacement kiit that works just fine.
Now,mif I can only keep fork seals in the 160. Guess I'll have to send
them off to Rasacals for his magic makeover he konws how to do. 
Ron Brehm