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Thread: Checking turbo shaft play

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    Checking turbo shaft play

    I recently purchased a set(front and rear) of 9b's from a local, and the first thing I did was check the turbine on the cold side for play, unfortunately I was able to move it up and down, however it was somewhat difficult to move the shaft using my index finger and thumb, both the front and rear have the same amount of play(up down, left right).

    Next I tested to see how easily I could spin the turbine using my index finger on the shaft the nut threads onto, I could spin the front one easily but the rear required me to use my thumb as well to get it to spin, I could spin both using my index finger on the turbine itself but the front was the easiest.

    I've read that a little play is acceptable, but I've also read that no play is acceptable, which is it? To me no play would be acceptable because if the turbine is able to move and make contact with the inside of the inlet it would certainly cause a problem, am I correct?

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    Forum User Feedback Score 13 (100%) Austin@STM's Avatar
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    A little play is acceptable, 99% of brand new turbos should have a little bit of shaft play up and down. Yes it it to much shaft play if it can touch the housing though.

    -Ricer Evo 8: 8.75 @ 166 Best MPH of 167. Quickest 4G63 Powered Evo in The US!!!
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    I AM IMPORT POWER Feedback Score 1 (100%)
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    If they have been off the car a while, they have little or no oil around the bearing/journals so there should be a little play. Also check in/out play which would show thrust wear.

    -Chris

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    Quote Originally Posted by Import Power View Post
    If they have been off the car a while, they have little or no oil around the bearing/journals so there should be a little play. Also check in/out play which would show thrust wear.

    -Chris
    They don't move in and out a noticeable amount, if it's bad will it be obvious with the amount of play?

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    Forum User Feedback Score -1 (0%) skater334's Avatar
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    Quote Originally Posted by Mr Faust View Post
    They don't move in and out a noticeable amount, if it's bad will it be obvious with the amount of play?
    Yes, as stated above if it touchs the housings then that's bad. Honestly, I'd take em' and have them rebuilt.


    Quote Originally Posted by Atrosity
    Quote Originally Posted by CandyAppleVr4
    3S's have been turning normal people into mechanics since 1991. =P
    yeah you can say that again

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    Forum User Not Verified Feedback Score 2 (100%) RealMcCoy's Avatar
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    Well, just in case you were wondering, this is bad...

    http://s90.photobucket.com/albums/k2...t=100_4662.mp4
    Last edited by RealMcCoy; 09-25-2010 at 09:03 PM.

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    Quote Originally Posted by RealMcCoy View Post
    Well, just in case you were wondering, this is bad...

    http://s90.photobucket.com/albums/k2...t=100_4662.mp4
    Lol, ouch I feel sorry for that turbo!

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    rawr. verified Feedback Score 4 (100%) Atrosity's Avatar
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    Quote Originally Posted by realmccoy View Post
    well, just in case you were wondering, this is bad...

    http://s90.photobucket.com/albums/k2...t=100_4662.mp4
    lmi!?!?!
    vroom vroom i drive a 93 toyota mr2.

    https://car.social

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