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  1. #1
    PWCToday Regular LakeLoverHubby's Avatar
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    Apr 2006
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    Piston install -- any trick to get rings in there?

    Ok . . . it's 11:40 PM . . . before holiday weekend . . . I can't get the freakin piston rings into the cylinder . . . any suggestions or am I just stupid to think I can do this myself without help????
    This is not an abandoned car . . .er, PWC
    You have to be really secure to be seen on this PWC.

    1995 Seadoo SP / 1994 Polaris 750 SLT / 1986 Cruisers Inc Holiday 26

  2. #2
    PWCToday.com Is My Home Away From Home
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    Oct 2003
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    Re: Piston install -- any trick to get rings in there?

    Special tool, a piston ring compressor is the right way. However, it can be done without one if your very very careful. I've heard people using zip ties to hold the ring compressed, as you push the cylinder down on the pistons, the zipties slide down. Then just cut the zipties before you bolt the cylinder down. I never tried zipties, so I can't comment. Just dont break the rings and make sure they are ligned up with the pins in the ring lands. Otherwise it won't go together.
    Water:'03Octane,'94B1,'95B1,Land:'06 Busa,'99GSXR750,'91Vmax,'91 5.0 GT, '86 SVO. Yes, I know..... I have a problem.

  3. #3
    Administrator SBT's Avatar
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    Re: Piston install -- any trick to get rings in there?

    All of our assemblers here simply use their hands, and it can be done very easily with a little practice. It helps to wipe some oil on the cylinders with your fingers first. Just hold the cylinder with one hand while squeezing the rings and inserting the pistons one at a time. It took me about 20 minutes my first time to do a monoblock triple, but now it takes me about 2. With single cylinders, it's even simpler, as you don't need to keep the other two inserted while you finish the third, and have to hold the whole cylinder block up with one hand.

    Make sure you aren't putting the rings in upside down. The letters should face up, and they should easily compress with your fingers completely into the ring grooves.
    SBT is the World's Largest remanufacturer of PWC engines and parts. CLICK HERE for our store and full details on our site!

  4. #4
    resident guru Sirhc 7897's Avatar
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    May 2002
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    Lake Butler, Florida
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    Re: Piston install -- any trick to get rings in there?

    I do it with the big wide zip ties...Get the rings where I want them and zip it in, super simple...
    Chris
    --------
    If it weren't for physics and law enforcement I'd be unstoppable...

  5. #5
    PWCToday Regular
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    Jun 2006
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    Owosso, MI
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    Re: Piston install -- any trick to get rings in there?

    Ring compressor here too... you casn get a cheap one at autozone, NAPA, advance, Car quest etc... whatever parts store you have by you
    1987 Kawasaki 650 stock other then paint.



  6. #6
    PWCToday Regular
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    May 2005
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    Re: Piston install -- any trick to get rings in there?

    If it's in the boat or you cant get it done with your fingers you can use large hose clamps as ring compressors.

  7. #7
    PWCToday Regular LakeLoverHubby's Avatar
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    Re: Piston install -- any trick to get rings in there?

    Cool -- many thanks! I'll see if I can't get it in there . . . at this rate though, it'll be next weekend before its on the water. With crazy boaters this weekend, I don't know that I'm heartbroken.
    This is not an abandoned car . . .er, PWC
    You have to be really secure to be seen on this PWC.

    1995 Seadoo SP / 1994 Polaris 750 SLT / 1986 Cruisers Inc Holiday 26

  8. #8
    Top Dog 99gp1200's Avatar
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    Re: Piston install -- any trick to get rings in there?

    "It took me about 20 minutes my first time to do a monoblock triple"

    It took me about 2 hours with motor in the hull the first time
    R-12X

    Manual Boost Control



    If you don't have to balance your watercraft its a boat

  9. #9
    PWCToday Guru
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    Re: Piston install -- any trick to get rings in there?

    Take sbt's advice, just use your hands. Going out and guy and learning to use a ring compresser is just more work. Ring compressers are more for 4stroke rings cause they r harder to get in becuase they have sometmes have a few rings on each cylender. But on your 2 stroke just ski just hold the cylender in one hand. In your other hand you want to have the ring compressed on the pistion in the ring grouve making sure the markings r showing up.( there is a small pin incerted into the pistion where the ring gap fits around...this keeps the ring from twisting in the bore when running) Then the bottom of your hand to hold the pistion and yourthumb and index finger to hold the ring in place and get it to side nto the bore. Do not side it very far in at all becfore you get the other side to go in. Then for the second ring that should already be in place get those to slide in in the same mannor.
    good luck
    hope this may have helped

  10. #10
    Frequent Poster
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    Re: Piston install -- any trick to get rings in there?

    Be sure to get the cylinder head gaskets on correctly.Spray them with the Permatex Copper Gasket Stuff And torque.

    Pictures in Clymer---Excellent investment

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