11-12-2010, 01:27 AM #1
Ultra 260x Supercharger issue - overheating ?
I'm wondering to know if anyone have ever heard about any cases of ultra supercharger becoming very hot. By that I mean more that 200°F . My friend had this issue this afternoon and since then we decided to get the ski of the water. Also he mentioned that the ski would only go to 7000 rpm instead of the usually 7450 rpm? Any idea ?
11-12-2010, 09:06 AM #2
- Join Date
- Jul 2007
There is only one thing that it can be. One or more of the bearings has failed. Does one end of the S/C heat up first? You should also hear a roar or whine. Unfortunately the S/C is not a rebuild item. The clearances are so tight all parts must be perfect and assembly must be done in factory jigs.
Hope you are still in warranty.
11-12-2010, 06:22 PM #3
Actually more than one thing can go wrong when the s/c gets very hot. The soft rubber-like coating on the s/c rotors will flake off and now there is too much clearance between the rotors - that is VERY critical for producing full boost and rpm. Easy to check. Just remove the top/outlet exhause manifold of the s/c and you will see rotor surface.
11-12-2010, 06:47 PM #4
11-13-2010, 01:06 PM #5
Around 7450rpm... probably because of a bad impeller pitch.
So it's his supercharger bearing messing out ? What alternative does he have instead of getting a new OEM supercharger ? Anyone know how to get a rotrex supercharger or a vortech for ultra 260 ? I ve been searching for a dealer but can't find ?
11-13-2010, 05:59 PM #6
11-13-2010, 06:10 PM #7
11-14-2010, 01:53 AM #8
ok here is the news,
we changed his supercharger with another OEM one today, then we went for a test... 7800 rpm wot.
The pitch was not the problem. Apparently, it was the supercharger.
Thanks to everybody for your help.
11-14-2010, 09:12 AM #9
11-18-2010, 07:22 AM #10
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
By turboAD in forum Kawasaki PWC Performance (4-stroke)Replies: 10Last Post: 03-23-2008, 12:59 AM
By Skips313 in forum Kawasaki PWC Performance (4-stroke)Replies: 9Last Post: 03-04-2008, 10:05 AM
By goblastergo in forum Sea Doo Open DiscussionReplies: 4Last Post: 02-18-2008, 04:22 PM
By dothedew in forum 4-Tec PerformanceReplies: 32Last Post: 07-08-2007, 10:33 AM
By rxp_boy in forum 4-Tec PerformanceReplies: 26Last Post: 07-17-2005, 09:30 PM