Thread: Rear pump bearing float
06-09-2011, 01:23 PM #1
Rear pump bearing float
I have my pump apart on a 250x trying to find a slight strange noise. I know the rear bearing is designed to float but at what point is it too much? I can't seam to find any info in the SM on this. For every revolution the inner ring turns the outer spins half a turn. Like a 1-.5 ratio. This has caused a small ridge from wear, where the bearing sets. It's mane .001-.002
Is this ok?
I'm worked it's going to get worse, or misalign the impeller.
06-09-2011, 01:46 PM #2
its fine the rear cone slightly rests against it if you are concerned use some loctite
06-09-2011, 02:19 PM #3
The cone does not contact the bearing outer race. I measured mine and there is a sizeable space. Other people had the same condition as me. Mine is in with loctite sleeve retainer, we'll see this summer if it causes other issues. I had half a thou wear before making the decision to secure the bearing from skidding in the pump housing. Maybe the POS can't handle a precision fitted bearing
Those are your words below nicjak.
"when you dry fit with pushing the bearing to the lip and installing the cone the cone will not reach the bearing".
06-09-2011, 02:52 PM #4
Agree with RT. Mine had a sizeable space too. That and the shaft were a loose fit on the front bearings causing a hammer-effect. Could that be one of the reasons why some ski's impellers came loose?
06-09-2011, 04:24 PM #5
I found that it was my front bearing that were misaligning the shaft as my other thread described. when I put it back together I think I'll use some blue loctite to ease my mind.
06-10-2011, 06:38 AM #6
06-10-2011, 11:42 AM #7
06-11-2011, 01:19 PM #8
06-11-2011, 07:05 PM #9
06-11-2011, 08:33 PM #10
When I first did the double bearing mod I replaced all three seals, the O-Ring on the shaft and the Bushing that goes in front of the two bearings. My guess Is the tech putting it back together didn't pack the seals with grease enough, or at all. This time I asked to pack the shit out of it.
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By 98gsxl951 in forum 4-Tec PerformanceReplies: 47Last Post: 08-24-2011, 12:43 PM
By drb in forum Sea Doo 2 Stroke SkisReplies: 3Last Post: 07-28-2011, 09:13 PM
By Polaris_Nut#1 in forum Polaris How To & FAQsReplies: 8Last Post: 06-19-2011, 11:03 PM
By rotortiller in forum Kawasaki PWC Performance (4-stroke)Replies: 30Last Post: 03-12-2010, 07:02 PM
By Sunfunzoom in forum 4-Tec PerformanceReplies: 24Last Post: 02-13-2006, 06:28 PM