Freestyle What oil to use in pump?

[NVJAY775]

I saw something a while back and couldn't find it. Instead of using grease, some have used oil in their pumps. Curious what type of oil and how much did you guys fill it?

Just curious. I know grease is fine, but If I can free the pump up a bit more, that'd be shweet.

Thanks fellas!
Jay

 

[TheBuzzard]

seadoo uses oil

 

[deftons56]

I think it was the mid shaft, not the pump, people were modding.

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[NVJAY775]

I remember the mid shaft oil too, but somewhere recently I read of guys running oil in the pumps. I'll look and see what oil seadoo uses, just for grins. I'd like to try it and see how it works. I had a machine shop press my bearings in for me. Still considering lube, but it's going to be a bitch getting enough lube in now. Then I read on how under lubing is just as bad as overlubing. Shear and other stuff can damage bearings due to grease pressures n other crap. Oil seems to be such a simple way to get it done. It will always coat the bearings etc... Blablabla... God hates a sissy! I'm trying some oil out. Bearings n seals are cheap.

 

[tshank123]

Just put some sealed bearings in with no lube and call it a day.

 

[Matt_E]

More recent Seadoo pumps use grease. Oil-filled pumps have not been used in them for years.

 

[Polish jet pilot]

I use ATF fluid in my pumps....

 

[Idok]

we used royal purple and ATF in pumps a couple times......




works good, just sucks in coming across a pump that you dont know has been oiled...then all that nasty crap dumps all over you and your workbench

 

[NVJAY775]

Thanks guys. I read some threads on GH that a lot of guys have run ATF, gear oil reg and synthetic with zero issues.

 

[WAB]

how could you 'over oil' the pump/midshaft & how could it be bad? :thinking:

 

[Crab]

same reason you don't fill your car up to the top of the engine...

 

[Polish jet pilot]

things expand when they heat up...