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Thread: Lower rpms

  1. #1
    monaroman76's Avatar
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    Lower rpms

    Hey guys went out today on my p-x and could only manage to pull to 7740 or there abouts rpm and only gpsing 65.5. Im worried that maybe my S/c is starting to slip but havent got to checking it just yet (60 hours on ski).. The oil is maybe 3/4 the way up the 2 marks which i thought wasnt significant enough to cause a drop in RPM. And i have had it revving to 8000 rpms since i done the last oil change so this is part of the problem?? any one else think S/C?

    Cheers


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    richrxp's Avatar
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    Check your outlet hose of your supercharger.

    Start engine rev it up,if it's soft it's your supercharger .

    If the hose is hard charger is ok.

    Then look for other failures,maybe a boost leak somewhere.

    Wearring damaged.

    First check the charger.

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    Quote Originally Posted by monaroman76 View Post
    hey guys went out today on my p-x and could only manage to pull to 7740 or there abouts rpm and only gpsing 65.5. Im worried that maybe my s/c is starting to slip but havent got to checking it just yet (60 hours on ski).. The oil is maybe 3/4 the way up the 2 marks which i thought wasnt significant enough to cause a drop in rpm. And i have had it revving to 8000 rpms since i done the last oil change so this is part of the problem?? Any one else think s/c?

    Cheers
    check the charger.....remove the hose on the inlet see if you can freely move the wheel,if its not at least you will know....sound like your starting to slip

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    monaroman76's Avatar
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    Quote Originally Posted by MARK_LEGG View Post
    check the charger.....remove the hose on the inlet see if you can freely move the wheel,if its not at least you will know....sound like your starting to slip
    Is this common for them to gradually start slipping and lose rpms?? it just seems that everyone who has a S/C issue goes from full boost to nothing...

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    richrxp's Avatar
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    If you have supercharger failure,you are in big trouble.

    Bearings ,or washer failure is the worst you can get.

    Sc could be slipping to soon.

    Maybe you only have to shim your clutch washer to get the proper tension back on them.

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    No its not unheard of,and if you done 60 hard hours you might need to shim up,or even replace the clutch washers.....just remove the inlet to the charger get your hand in and try to spin the wheel.....takes 2mins.....if it is spinning the charger gota come out.....good luck

  7. #7
    RXP305's Avatar
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    Any X charger stock metal washer needs to be replace for Riva metal washer, The stock washer on the X charger is crap.

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    Quote Originally Posted by RXP305 View Post
    Any X charger stock metal washer needs to be replace for Riva metal washer, The stock washer on the X charger is crap.
    AINT THAT THE TRUTH,AND IF HE HAS DONE 60 HOURS ON THE OEM WASHERS.....HE HAS DONE WELL,SOME HAVE HAD MAJOR ISSUES,CRAP PUTS IT RATHER WELL

  9. #9
    richrxp's Avatar
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    The riva washers aren't brake proof ,it has been reported that the failed also.

    Anyhow they are much better then the old ceramic washers and the new steel ones ,but still they fail sometimes.

    Sad but true!

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