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  1. #1

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    What to do 94 Polaris SLT

    After I burned a hole in my PTO and removed the engine to get to the crank for cleaning I found a hair line crack in the lower engine case . With all these problems I figure new engine is the solution. Im not that experienced with mechanics but been getting better. Should I get a new engine? Is it worth it to keep the crank and just buy the case? What are some things to watch for when buying a engine used? Got this thing for free put a jet pump on and loved it for all 4 times I took it out. Parts where I live are pretty hard to find and knowledgeable people. I really cant afford shop rates. Im desperate to get back on the water.


  2. #2
    johnsonmtz's Avatar
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    Quote Originally Posted by Djaypro View Post
    removed the engine to get to the crank for cleaning I found a hair line crack in the lower engine case . .....I figure new engine is the solution. Im not that experienced with mechanics but been getting better. Should I get a new engine?.....Im desperate to get back on the water.
    SBT has somewhat of a checkered history, but for the most part produces a decent remanufactured engine. I'd say with limited mechanical skills and knowledge you might be better off just buying a reman from them, plop it in the ski, and ride for the rest of the year.

    I know some folks won't want to hear me say that, but sometimes you have to decide to fish or cut bait. Right now your crank is a huge unknown. You might get it removed and find nothing or the bearings could be full of grit and need replaced. If the crank is bad you're looking at $300 to repair or replace, $100 for a complete gasket kit....and then you still need to get the bad cylinder machined ($25?) and buy a new piston ($100). At that point you're over $500 plus shipping costs into the ski and the motor isn't even back together.

    For $700 plus shipping you can have a motor ready to drop into the ski. If you ordered it today I bet you could have it by the end of next week, drop it in, and you're riding next weekend.

    You have to decide for yourself, but with limited mechanical experience this might be a good option.

    KJ

  3. #3
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Where's the crack?

    How about a pic?

  4. #4

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    hard to see but hair line above where the bottom plate mounts. 2nd pic was a mistake
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  5. #5
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Interesting.... Did it go all the way through???



    If the crank is good, I'd get a set of new cases with either the top end kit you were going to install, or just the one bad cyl to keep the cost down.

    If the crank is bad, I'd possibly go the SBT engine rebuild route.

    Or get a used engine off Ebay.

    Ask if the engine was ever used in salt water. Stay away if so.

    Looking for a rusted, noisy, or gritty feeling crank.

    Even compression across all 3, say in the 120-135 psi range

  6. #6

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    xlint89 Thank you That is the info I wanna hear I know my connecting rod on the pto is loose most likely the lower bearing. Are those hard to change if I pull the crank case? Thanks again.

  7. #7
    johnsonmtz's Avatar
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    Quote Originally Posted by Djaypro View Post
    xlint89 Thank you That is the info I wanna hear I know my connecting rod on the pto is loose most likely the lower bearing. Are those hard to change if I pull the crank case? Thanks again.
    Cranks are not a do-it-yourself item. The connecting rods are solid forged, they do not have a cap that bolts on. These cranks are press fit together and require special jigs to properly align the sections.

    If you have a loose rod, you'll need to either send the crank to a shop for repair or replace it with a rebuilt one.

    KJ

  8. #8
    I'm addicted to Polaris PWC ghostinstallations's Avatar
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    PM me if you need a case,I have one for sale.

    Good luck with your project!

  9. #9

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    Pm sent for price request

  10. #10

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    Got the flywheel off now what do I remove the philips screws?

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