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Old 03-09-2013, 10:04 AM   #1
Rock Junkee OP
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has any one installed the grey water pump seal

Has any one had any trouble putting the new GREY teflon seal on the water pump shaft??? did you need any special tools? i searched here and the o.c halls of wisdom, i can not not find what to do.
the newer seal way to stiff and can not slip over the shaft even wtih grease and tape. thank you

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Old 03-09-2013, 10:26 AM   #2
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ah ha found this one http://www.ktm950.info/how/Orange%20..._overhaul.html
looks like i need to make a tool or try to find one of those.
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Old 03-09-2013, 12:01 PM   #3
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I just did it this week, no issues, i used the tape trick and it popped right on. I used wheel bearing grease on it..


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Old 03-09-2013, 07:06 PM   #4
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I just did it this week... I used wheel bearing grease on it
you don't want to use grease or oils- you're contaminating your seal

Coolant is the proper lubricant for water pump seals, and it does make it slippery!

The factory shaft/seal tool makes this job SO much easier, and without the fear of catching an edge. It also packs right in with your new spare seal & shaft in the tool kit you carry on trips
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Old 03-09-2013, 09:38 PM   #5
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Heat-shrink tubing does the trick.

Lube the shaft with silicone grease, put heat-shrink tube over it, all the way to the bottom. (there is a size that just fits the diameter perfectly, il measure it tmmo if needed). Leave about 5 cm over the top of the shaft. Shrink it with heat so it forms around the shaft nicely. the surface of the heatshrink wil be smooth as to a bit rough when not shrinked. Put silicone grease over the shrinked tube. Put silicone grease on the seal and slide the sucker over the shaft. I pounded it in gently with a socket and some protection. Then just pull the heat-shrink out. Et voila! No busted up o-ring.

As for the 'no grease on o-rings warning', silicone grease is safe for rubber!
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Silicone grease is commonly used for lubricating and preserving rubber parts, such as O-rings. Additionally, silicone grease does not swell or soften the rubber
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Old 03-10-2013, 12:24 AM   #6
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a single layer of vinyl tape and silicone grease has worked for me for many installations of the grey seals.
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Old 03-10-2013, 01:11 AM   #7
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Quote:
Originally Posted by geometrician View Post
you don't want to use grease or oils- you're contaminating your seal

Coolant is the proper lubricant for water pump seals, and it does make it slippery!

The factory shaft/seal tool makes this job SO much easier, and without the fear of catching an edge. It also packs right in with your new spare seal & shaft in the tool kit you carry on trips
Since its a PTFE seal,, I didn't figure it would matter.. I could see it if it was a standard rubber seal. Guess we shall find out..

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Old 03-10-2013, 04:24 AM   #8
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I have always used grease on waterpump seals. Must have done 100 KTM waterpump rebuilds and no premature failures.
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Old 03-10-2013, 06:17 AM   #9
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I have always used grease on waterpump seals.
+1 No issues.
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Old 03-10-2013, 08:41 AM   #10
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Thumb Cool Beans!

I'm referring to all the factory manuals I've seen over the years when dealing with water pump seals & o-rings

It's not the seal I'm worried about per se, it's the introduction of (petroleum) grease/oils to the cooling system & seal lips.

Better safe than sorry, I'm glad to hear silicone grease does the trick w/o problems

After doing half a dozen pump rebuilds w/sockets & tape, switching to the two KTM tools makes the job SO easy, and at dealer cost/+10% it was easy to add them to the collection. I take them for granted now!
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Old 03-10-2013, 09:52 AM   #11
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Not a single joke about "grey water" ? There's something not right about this place.
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Old 03-10-2013, 10:57 AM   #12
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Not a single joke about "grey water" ? There's something not right about this place.
I was also wandering who puts a plumbing question in the Orange Crush...
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