Water Pump Oil Reservoir

[toddc]

Hello All,
I'm having an issue keeping a level in the small oil reservoir for the water pump. I checked it before riding yesterday and it was totally empty, so I filled it up, started the machine and ran it for a few minutes and the level seemed fine. Got back from a couple hour ride, and now the reservoir is empty again. I can't find any exterior leaks, so I'm assuming I must have a bad seal internally. Would this leak into the coolant system or into the crankcase? Also what damage would I be doing by running it empty? I tried doing a search on the skidoo forum, but couldn't find any info. Does the normal 600HO feed this line from the oil injection pump outlet? Anyway, I'd appreciate anyones input on this.

-Todd

 

[snowhawk jockey]

That is a total loss oil system As in, it should always have less and the end of a ride, than when you started the ride. It oils the waterpump drive gear. If I remember, it is a plastic worm gear and the splines from the center of the crank engage the worm gear directly. Meaning, if the crank turns 8200 rpm, the teeth are hitting the worm about ~500 times a second(maybe bad calculation...)

You really want to oil that gear. If you are going through oil rapidly, check the oil-pump block-off plate gasket, otherwise it is an internal loss into the case or coolant.

If you have a little slime in the top of you overflow bottle, you now know what it is!

 

[J&L Snowhawk]

not sure

I know on our new machines the first few tanks of fuel seemed to use quite a bit of oil in the water pump bottle. after a few fills last quite awhile.

 

[RudeAwakening]

i just filled mine agian! it was emtey!
the thing is that i filled mine 2 rides ago aswhell! hope all is ok!

 

[toddc]

Thanks for the responses....I found some more info on the Doo talk forum. Some of the guys are under the impression that it also oils the two center crank bearings.....I hope that isn't the case. On oil injected models, the feed line comes right out of the main oil tank.
I guess I'll hope for the best and keep topping it off after every ride. It sure would suck to tear down the entire motor just to replace a few o-rings
-Todd

 

[cjgodden]

You should not be using any oil from that tank. If you are you either have a leak in one of the lines or a bad crank seal. If the crank seal is bad oil is leaking from the water pump cavity into one or both cylinders. This will not hurt anything, it will make that cylinder (or both depending which or if both are leaking) run a little richer. As long as you keep the tank full no problems. If the tank runs dry then the water pump will fail. Injected sleds run a line to the inner bearings but premix do not ) premix i.e. race sleds and hawks).

And by the way, the seals are true seals not o-rings and the crank will have to be completely dissassembled to fix. better to just get a reman from ski-doo.

 

[snowhawk jockey]

...

...And by the way, the seals are true seals not o-rings and the crank will have to be completely dissassembled to fix. better to just get a reman from ski-doo.

I remember seeing one of those cranks, fully assembled with seals and all. I thought I was seeing things, wondering how the heck it went together with the cases. Having the oil leak at an uneven pace into one case or both would cause uneven running, not good for hard roosting.