Thread: Oil in pump bearings?
05-16-2006, 12:43 PM #1
Oil in pump bearings?
I did a search on this and found a link to a riva tread but the picture fernando had put up is no longer there? anyone have a picture of the filler plug installed? Thanks Brad
05-16-2006, 12:46 PM #2
05-16-2006, 12:51 PM #3
05-16-2006, 01:11 PM #4
- Join Date
- Jul 2006
How much oil do you put in?
05-16-2006, 01:58 PM #5
05-16-2006, 02:05 PM #6
in the old tread about this fernando said you could blow air down the bearings to get the grease out? I assume he is saying to pull the shaft out first? Never had my shaft out and not sure if this is a good reason to pull it apart?
05-16-2006, 02:14 PM #7
It takes more than blowing air down in there.
Here is what I did
With the pump & shaft out of the ski and the pump cone upwards, you will need to spray carb or brake cleaner down in the cavity to loosen & dissolve the grease.
I went thru about 2-3 cans of it spraying it in there several times and dumping the cavity over and over. Make sure you spin the pump while you are doing this inbetween fills to help get all the carb cleaner or brake fluid in there. It will take you several fills to get all the grease out.
Use compresses air in the end to help evaporate all the carb cleaner or brake fluid out.
Again, it took me anywhere from 2-3 cans to completely get all the grease dissolved from the pump cavity.
05-16-2006, 02:18 PM #8
would is be easier to just pull the saft from the pump?
05-16-2006, 03:46 PM #9
The shaft needs to be pressed out, so I would say no. RX951's method of using brake cleaner is the best way to get the grease out, although I use less than a can to get my pump cleaned out. I think the consensus was the extra speed gained by tapping the pump cone and using ATF fluid wasn't worth the loss of bearing life. I use Mobil synthetic lower end lube and fill just until the lube is visible through the bearings, then squirt two ounces of Mobil 1 synthetic marine grease into the pump cone. So far, so good for me.
05-22-2006, 06:36 PM #10
If you want to extend bearing life, DON'T use Mobil 1 gear lube. Their oil is awesome, gear lube is JUNK. I work witha company that tests the stuff, Mobil 1 gear lube tested worst (Amsoil and others were much better). Funny thing was that the Mobil Engine Oil was the best tested (didn't test Amsoil). This was as of 2 years ago when they did the testing.
There is a reason the gear lube is so cheap and engine oil is so high compared to other synthetics!
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