Thread: pump bearing oil
03-03-2007, 06:25 AM #1
pump bearing oil
removing stock grease from bearings in pump to change to oil, firstly can anyone recommend a good weight gear oil to use.
Instead of drilling and tapping pump cone which i suspect may cause turbulence as the water exits I have decided to remove pump unit and cone and fill with oil in the upright position.
How much oil is required for sufficient lubrication for both bearings when filling in cc's.
Any idea of standing time to allow oil to reach rear bearing and fill the void in between bearings.
p.s How was the original grease lubricating the rear bearing as i have packed the cone bearing several times and not given much thought to the other.
03-03-2007, 06:39 AM #2
the 05 pump cone is thick , about 1/4 inch , drill and tap for a 1/8 npt, use allen socket brass plug, im running amzoil rear end lube 75/90 , some people mix greese and rearend lube to make a runny paste.....i just use the gear lube...been ok for one full summer...
03-03-2007, 08:13 AM #3
03-03-2007, 10:04 AM #4
I dont think you'll have enough oil. When the nose is up moving forward the oil will be forced to the cone leaving the bearings dry.
If you can find a different size plug just drill & tap for that size. I used an extra seadoo cone plug(1/8 npt) cause I had one. If you have a Doo dealer around they should have one.
03-03-2007, 10:15 AM #5
03-03-2007, 10:16 AM #6
Just curious but why is this being done?
Is the OEM grease insufficient or is there a performance gain to be had by doing this.
03-03-2007, 10:23 AM #7
hot air gun and a bit of time to melt old grease out and good lube and same spin goes round 5-6 times...
and the stock grease cant in my little mind get to the rear bearings and the blob in cone is only good for rear bearing....
dont think i will gain anything but it cant hurt either...
03-03-2007, 10:23 AM #8
03-03-2007, 10:35 AM #9
A few tips:
1. If using a hand drill use a bit 1/32" smaller than recommended to counter the natural wobble.
2. Drill & tap at an angle that will put the plug flush w/ the cone.
3. Dont tap too deep. Tap, insert plug to check, tap deeper if needed.
03-03-2007, 10:39 AM #10
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By N2Motors in forum Kawasaki Open DiscussionReplies: 2Last Post: 08-15-2013, 07:48 AM
By Mighty Mouse in forum Polaris Open DiscussionReplies: 23Last Post: 12-20-2012, 11:26 AM
By r33pwrd in forum Yamaha PWC Performance (2-stroke)Replies: 31Last Post: 05-23-2006, 01:25 PM
By Top banana in forum 4-Tec PerformanceReplies: 9Last Post: 02-13-2006, 06:11 AM
By RXPDAVID in forum 4-Tec PerformanceReplies: 3Last Post: 08-31-2005, 12:55 PM