4 replies to this topic

[thumper]

had my annual service yesterday - the service technician checked the supercharger and it was borderline on the rolling torque meter so they are changing my supercharger as soon as my new dials come in - aparently the supercharger clutch can go if the ski spends a lot of time in the air!!!!!

[R-Doo]

The SC has 2 ceramic washers that are used as a clutch. They are made to slip when the boost level get too high. This would happen at the point when your motor hits the rev limiter as the load is gone when the impeller is out of the water at WOT.
The ceramic washers have had a problem like this in the jetskis for a few years now. In 06 they increased the size of the SC shaft. It seems to have helped some but people are still playing it safe and swapping their fragile ceramic washers out for metal ones.
The ceramic washers desinagrate on failure if they slip too much. These tiny pieces of ceramic material get in the engine through the oiling system. Front and rear oil pumps have to be taken apart and cleaned if the washers fail. $$$
The metal washers don't have this problem. If they start to slip, they can be shimmed and retorqed.
The following is a link to a jetski performance site that handles parts, including washers for the 4 tech motors. Jetski and boat share the same motors.
Metal washers

Here's what the clutch looks like on the SC.

[thumper]

yep thats all the bits they changed on my doo yesterday and got two new guages - so touch wood my doo in now back as good as new - we had a look at the ceramic washers that came out and one was cracked and chipped so it was only a matter of time before it broke up completely -

[R-Doo]

Good you got it replaced when you did.
I'm just not going to take the chance and will put metal washers in my SC this Spring before the season starts.
I know the warranty covers the stock clutch but it's just the amount of time to be without if it would go out. It's already a short season in Minnesota, no need to be broke down during what there is.

[thumper]

well min didnt actually go - during the service the techy chaecked the sc with a rolling torque meter - basicaaly he explained that the 05 scic had ceramic washers in and they were prone to breaking up but there was a tolerance limit set for the warranty work and that was 7nm, mine was 9nm but i phoned brp in the uk and said i was unhappy at being told i had a possible problem in future and was worried that if brp had identified this as a problem (particularly as the dealer in question has replaced 60 in 05 jet skis) so they agreed to replace it now, without any quiblling at all - pretty good.