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  1. #1

    Dead Cylinder - The Culprit?

    98 Polaris SLTX 1050 ... after doing a compression test realized cylinder closest to front of craft was dead 0PSI - other cylinders registered 110PSI.

    We pulled the engine last night. Looking through the exhaust port the piston in that cylinder was pretty messed up, the ring was all but non-existent.

    My question is where do I start investigating what caused this? Could that cylinder have run lean and burned it up? If so is some carb testing or rebuild in order? If so is there any good articles anywhere on how to do carb testing and rebuild?

    Thanks all - you guys are great!


  2. #2
    ph2ocraft's Avatar
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    If it were mine the first thing I would do is remove the cover on the carbs and check for any foreign debris in the fuel pump and metering block arena.
    I'd perform a leak down on the engine and see if there is a leak in the system creating a lean running condition.
    I'd also verify there is no water blockage at the pump inlet screen, creating a running hot issue at the front cylinder.
    Make sure the oil line to that carb is in proper working order and verify it was receiving lubrication.
    Can you get a photo of the damaged cylinder?

    Oh and WELCOME to the Green Hulk Forums!!!

  3. #3
    Thanks for the reply!

    I will try and get a photo of the piston posted up here ASAP.

    I was just going to get a reman'd engine and drop that in but did not want to burn that up with a problem with another system.

    I'll try what you said and post the results. I am going to install a oil block off plate so the oil line check to the carb is unnecessary correct?

    Thanks for the welcome!

  4. #4
    AWA Member 32DegH2O's Avatar
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    I posted this at your other thread at the other place but for a rebuild, I would stay away from an SBT...just from what I have personally seen/experienced and from what others have posted about their experiences.

    P.S. Glad to see you made it over here....
    Last edited by 32DegH2O; 03-28-2007 at 09:18 AM.

  5. #5
    ph2ocraft's Avatar
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    Quote Originally Posted by netguru2386 View Post
    I am going to install a oil block off plate so the oil line check to the carb is unnecessary correct?

    Thanks for the welcome!
    Correct, just be sure to block the carb nipples so no air is drawn into them once the oil lines are taken off.

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