Supercharger oiling

[Greg Moore]

Anyone have a good description of how the supercharger bearings get their oil? (06 RXP 215)
I bought a machine that dumped the rear bearing. It had just come back 5hrs earlier from a reputable dealer who had done a full S/C rebuild including bearings. Didn't give it much thought as the machine was cheap because of the cost to repair after that. Fast forward, I put new bearings rod and main, both pumps and a full flush and blow out of the motor then rebuilt it with a new complete supercharger.. 11hrs run time and rear bearing on this one went..

What oils these?

 

[skiasylum]

Anyone have a good description of how the supercharger bearings get their oil? (06 RXP 215)
I bought a machine that dumped the rear bearing. It had just come back 5hrs earlier from a reputable dealer who had done a full S/C rebuild including bearings. Didn't give it much thought as the machine was cheap because of the cost to repair after that. Fast forward, I put new bearings rod and main, both pumps and a full flush and blow out of the motor then rebuilt it with a new complete supercharger.. 11hrs run time and rear bearing on this one went..

What oils these?

08 and up supercharger oiling system retrofit. - Page 5

 

[skiasylum]

Only info I could find.

 

[Digdog]

I would look for an issue with the manufacture or assembly of the bearing section that is allowing a preload on the bearings, maybe that oil sprayer is out of align or damaged. Here is an copy from my 260 manual, maybe this will help.

 

[Greg Moore]

Thanks guys but 06 doesn't use an oil sprayer, turns out they just 'collect' oil splashed off timing chain. Also the oil spray added on later models probably helps but it isn't to lube the bearings, it's to cool the clutch washers to extend life.

Who makes a machine with a part spinning close to 100,000 rpm that doesn't use a direct pressure feed.