North American Turbocoupe Organization



shaft play
bob88TC Offline
Junior Member
#1
This is i'm sure a simple question, but what i required to check the amount of shaft play in a turbo? Do i hve to take it apart or what
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Pete D Offline
Administrator
#2
The ball park checking can be done from the compressor end. A dial indicator would be nice. For the T-3, end play should not exceed 0.003" and side play sould be between 0.003 and 0.006" according to one book I have. I haven't seen specs for the IHI but would think they would be similar. You also want to look at the condition of the compressor wheel blades. Are the ends badly eroded, chipped or broken off.

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NATO Member. it's not a vice, it's an obsession
"The nice thing about each new day is nobody ever used it before" Barnaby Jones
88 TC X 2, 86 SVO, mods list at
http://www.turbotbird.com/showroom/pd_88tc.htm
Pete Dunham


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Anthony M Offline
Member
#3
Where can i find one of these "dial indicators" you speak of Pete? I noticed the T3 from the JY i got has the slightesed amount of play if i hold onto and end and move nudge it to the top and bottom of the housing. How can i tell if this is to mush just with my hand? Can i ?

Thanx

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88 Turbocoupe
Front mount K&N
Gillis set to 16
88 TC, T3, Volvo IC
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Pete D Offline
Administrator
#4
You can get them lots of places. Try Harbor Freight for an inexpensive set up including magnetic base. It will only be good for checking end play at that position.
A sheet of 24 # printer paper is about 0.005" thick.

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NATO Member. it's not a vice, it's an obsession
"The nice thing about each new day is nobody ever used it before" Barnaby Jones
88 TC X 2, 86 SVO, mods list at
http://www.turbotbird.com/showroom/pd_88tc.htm

[This message has been edited by Pete D (edited 10-14-2002).]
Pete Dunham


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