SBT Jetski Engines, Parts & Accessories

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  1. #1
    Joined
    Jun 2007
    From
    Bloomington
    Posts
    16

    Default Engine alignment question

    I'm getting so close to completing this project (installation of 657 into 94 GTX). I have the engine installed and connected and have been waiting on the arrival of an alignment tool. Unfortunately, Fed Ex delivered an empty box yesterday. The bar for the tool had slipped out of a hole in the end of the box. End result, I can't complete the alignment.

    Since the weather here in central IL is changing rapidly, I'd really like to get the break-in done this weekend. Would it be okay to just do the break-in with the engine not completely aligned? I've put the original shims back in place and the pump slides on with very little effort. Once I receive the rest of the tool I'll complete the alignment.

    Thanks for your help!

    Scott

  2. #2
    Joined
    Sep 2007
    From
    London, ON, Canada
    Posts
    74

    Default Re: Engine alignment question

    **** that sucks. I wish I knew how to help you out...I was reading this post because I have the same question. I just haven't started my rebuilds yet.

  3. #3
    Joined
    Aug 2004
    From
    Olympia, WA
    Posts
    3,629

    Default Re: Engine alignment question

    Yes you can, just be aware that you might cause damage....

    A trick to doing a quick alignment... Install everything, inlcuding the pump. Keep the bedplate a little loose on the mounts and kick the starter over a few times (don't start the ski). This will get you close. Then, tighten down the bolts...

    when you get the alignment tool, do it correctly. Also DO NOT forget those rubber peices on each end of the driveshaft... VERY Important, especially if your motor is not perfectly aligned.
    Dan Solie -
    04 RXP (the "Instigator")
    94 xp (freestyle mods)
    95 xp (faster than the 94)
    JS550 (the toothpick & the loaner)

    For FREE Seadoo Manuals - Click HERE!!!!

    http://www.tripleateam.com/water/v/U...ery/Dan-Solie/

    **** Please do not PM me. I don't do PM's.... Please post your question on the correct forum so that all can see and learn. Thanks! ****

  4. #4
    Joined
    Jul 2007
    From
    Jersey Sho
    Posts
    27

    Default Re: Engine alignment question

    Quote Originally Posted by dsolie
    Yes you can, just be aware that you might cause damage....

    A trick to doing a quick alignment... Install everything, inlcuding the pump. Keep the bedplate a little loose on the mounts and kick the starter over a few times (don't start the ski). This will get you close. Then, tighten down the bolts...

    when you get the alignment tool, do it correctly. Also DO NOT forget those rubber peices on each end of the driveshaft... VERY Important, especially if your motor is not perfectly aligned.
    I've been debating on if I should go through of having someone align mine or rent a tool from sbt or a place like that. I went to go to a local shop and guess what the shop doesn't even have an alignment tool and the only person that knew what one was was the owner of the shop, and the place pulls motors all the time all they do is put the shims back in. That's exactly what everyone told me to do with mine but im picky with my stuff. What's the worst that can happen? kill the splines on the driveshaft, pto, and impeller? there's something wrong with my pump we put in a brand new double lip seal and it still leaks pump oil from the seal. errgh

  5. #5
    Joined
    Aug 2004
    From
    Olympia, WA
    Posts
    3,629

    Default Re: Engine alignment question

    O-ring still on your pump shaft?
    Dan Solie -
    04 RXP (the "Instigator")
    94 xp (freestyle mods)
    95 xp (faster than the 94)
    JS550 (the toothpick & the loaner)

    For FREE Seadoo Manuals - Click HERE!!!!

    http://www.tripleateam.com/water/v/U...ery/Dan-Solie/

    **** Please do not PM me. I don't do PM's.... Please post your question on the correct forum so that all can see and learn. Thanks! ****

  6. #6
    Joined
    Sep 2007
    From
    London, ON, Canada
    Posts
    74

    Default Re: Engine alignment question

    One of my engines came already pulled from the boat, so I have no shims, nor do I have any idea how it was installed. I'll do the starter trick to get the thing aligned the best that I can. Does the shaft make a noise if it isn't properly aligned? How do you tell if it is aligned or not?
    1997 Speedster (twin 720s)
    London, Ontario, Canada

  7. #7
    Joined
    Aug 2004
    From
    Olympia, WA
    Posts
    3,629

    Default Re: Engine alignment question

    Your PTO splines will strip in a few hours. lol That's usually the first indication.
    Dan Solie -
    04 RXP (the "Instigator")
    94 xp (freestyle mods)
    95 xp (faster than the 94)
    JS550 (the toothpick & the loaner)

    For FREE Seadoo Manuals - Click HERE!!!!

    http://www.tripleateam.com/water/v/U...ery/Dan-Solie/

    **** Please do not PM me. I don't do PM's.... Please post your question on the correct forum so that all can see and learn. Thanks! ****

  8. #8
    Joined
    Sep 2007
    From
    London, ON, Canada
    Posts
    74

    Default Re: Engine alignment question

    Well that's no good...I don't want that to happen.....hmmmmmmm

    I have to get some 2-stroke oil after work, I'll look into getting the proper tool.
    1997 Speedster (twin 720s)
    London, Ontario, Canada

  9. #9
    Joined
    Sep 2007
    From
    London, ON, Canada
    Posts
    74

    Default Re: Engine alignment question

    So I borrowed the special tool from my local SeaDoo dealer. Wow they are cool. $40 cash, and they loaned it to me over night!! :D







    All set to go. Going to fire them up tonight. :D
    1997 Speedster (twin 720s)
    London, Ontario, Canada

  10. #10
    Joined
    Oct 2007
    From
    Key West
    Posts
    198

    Default Re: Engine alignment question

    Nice job,

    You have to switch the hoses on the back of your engines, the hose with the T (flush hose) has to go to the headcover's arrow out, so standing behind the boat on the right hand, the single hose coming straight from the back (pump)has to go on the left hand site of the head cover(in arrow).
    On top of the flame arrestors, you see a little hole, there should be a plug in there, so water doesn't go in when you wash your engine compartment.

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