550sx crank question
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  1. #1
    PWCToday Newbie
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    550sx crank question

    Hi everyone, new guy here. I recently bought a 1991 Kawasaki 550sx for a winter project. First job is rebuilding the engine and first part of that is rebuilding the crank. Wondering if anyone has specs for rebuilding these cranks (runout, phasing, clearances, etc) or any tips to help the job go smoothly. It's my first attempt at rebuilding a pressed together crank so any info is greatly appreciated.



    Thanks in advance for any help

    Phill

  2. #2
    PWCToday.com Is My Home Away From Home WFO Speedracer's Avatar
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    Re: 550sx crank question

    unless you have some way of putting that crankshaft back in phase , you best leave it to someone who does.
    Y'all know me, still the same O.G. but I been low-key
    hated on by most these &^$$@s with no cheese, no deals and no G's, no wheels and no keys, no boats, no snowmobiles, and no skis, mad at me cause I can finally afford to provide my family with groceries

    WWSRD , What would Speed Racer do ?

  3. #3
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    Re: 550sx crank question

    That won't be a problem. I've been a machinist for 20 years, if we don't have something in the shop I can make it. I'm really just looking for any specs I can find on this crank so I don't have to go by what it measured before I pressed it apart.

    Phill

  4. #4
    PWCToday Newbie Carter.104's Avatar
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    Re: 550sx crank question

    Yeah I would just leave it to somebody like group k or SBT… no matter how many years you’ve been a machinist you’ve never done 550 crank. Better to just leave it to a company that’s been doing 30+ years


    Sent from my iPhone using Tapatalk

  5. #5
    PWCToday.com Is My Home Away From Home bandit88's Avatar
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    Re: 550sx crank question

    Quote Originally Posted by Carter.104 View Post
    Yeah I would just leave it to somebody like group k or SBT… no matter how many years you’ve been a machinist you’ve never done 550 crank. Better to just leave it to a company that’s been doing 30+ years


    Sent from my iPhone using Tapatalk
    It should be a crime to group GroupK and SBT together. One has been doing quality work on vintage motors for a long time and the other hacks together stuff and uses sub par parts for max profit.


    76wagon,
    Some of the info you are looking for can be found in the manuals on here http://www.pwctoday.com/showthread.p...=1#post3311375. It may be beneficial to get a Kawasaki 550sx shop manual, there will probably be more details.

  6. #6
    PWCToday Newbie
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    Re: 550sx crank question

    I know it's good advice to leave it to the professionals, that's usually the advice I give people. Problem is I'm cheap, stubborn, and get more determined once I'm told I can't do something.

    I'm planning on giving this the old college try, and if that doesn't pan out I'll probably start looking for a more common engine to swap into it. At the end of the day it's not rocket appliances, it's just a jetski.

    Thanks for the link bandit88, that should help out a lot. I've been looking for a shop manual but haven't found one yet that will ship to Canada for a decent price. This thing came in boxes and I've never had a stand-up before so I can't just go off memory this time.

    Cheers!

    Phill

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