Thread: My First 4TEC Service
10-17-2010, 03:56 PM #1
My First 4TEC Service
Just finished my 1st 4tec repair/service since coming over from the 2 stroke world. My friends 05 RXP cavitated badly and hit the rev limiter, needed an oil change and a supercharger rebuild. I removed the SC and had the local dealer perform the service(I know, should've had Jerry). They are reputable and the turn around was quick. Anyway, while the SC was out I replaced the bellows and carbon ring with OEM. I wasn't sure this was the cause of the cavitation, but while the SC was out, the money on the parts was well spent. I ran into a minor snag when my SBT wear ring and recon impeller came. The wear ring was too small, it fell into the pump and I was able to spin it by hand. It will be returned and was replaced with an OEM. The oil change was done with Amsoil and an OEM filter and I test rode the ski today. The cavitation is cured and this thing runs like a beast. It no longer hits the rev limiter, it does however max out at 7950rpm's. Is that right for the ski? Just checking.
10-17-2010, 04:08 PM #2
10-18-2010, 07:29 AM #3
No your Rs are down a tad..They should be at or right around 8100...NOW i dont know what your weather conditions are or temps..This could have something to do with it..OR You may need to tweek your prop some to acheive them RPMs
10-18-2010, 06:02 PM #4
Thanks for the input. The weather was calm, the air temp was about 68 and the fuel tank was 1/2 full(I am an optimist). I did take it out again this afternoon under similar conditions and reached 8000 rpms. The Seadoo dreamometer said 70mph. I am happy, and I'm sure my buddy will be, with that. I'm not going to begin tweeking the impeller to gain 100 r's. I just bought his brother in law's 2008 RXT-X and I don't want the RXP faster than my new ski.
10-18-2010, 08:32 PM #5
I can never get above 7800-7900 during the hot & humid summers down here in Florida. But at 68 degrees my RXT 215 is definitely coming in at 8100. I always wonder why everyone knocks the SeaDoo speedometer. Mine is always dead on when I compare it with GPS. Maybe I just got lucky.
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