what is acceptable shaft play - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 9 (permalink) Old 10-31-2007, 09:11 AM Thread Starter
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what is acceptable shaft play

like the title states what is acceptable shaft plat in the stock Garrett tubro on a 2002 7.3
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post #2 of 9 (permalink) Old 10-31-2007, 04:37 PM
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Side to side (in/out) it must not touch the housing, same with up/down.

Modern turbos are WAY "looser" than older ones, it is completely normal to have now, what used to be completely unacceptable amounts of play. No, they did not loosen the specs to save $$$, the turbos are that much better.

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post #3 of 9 (permalink) Old 10-31-2007, 04:44 PM
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:iagree one thats still in good shape should slightly move or not move at all.

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post #4 of 9 (permalink) Old 10-31-2007, 05:21 PM
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Quote:
Originally Posted by midwestoffroad
like the title states what is acceptable shaft plat in the stock Garrett tubro on a 2002 7.3
I had a 2000 7.3 and it only had 55,000 on it and it had some play, so it is typical, higher mileage will have obviously have more play.

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post #5 of 9 (permalink) Old 10-31-2007, 06:00 PM Thread Starter
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Mine spins freely and doesnt have hardly any thrust play (in/out) but side to side it seems excessive. but doesnt touch the housing. but i dont think you could fit a dollar bill between the fin and housing
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post #6 of 9 (permalink) Old 10-31-2007, 08:17 PM Thread Starter
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grabbed my dial indicator. with 1 finger the play is .001 but with 2 fingers and slight pressure max is about .020.. again no end play in and out.. i am going to assume this is fine and put it back on..
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post #7 of 9 (permalink) Old 10-31-2007, 08:55 PM
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Quote:
Originally Posted by midwestoffroad
grabbed my dial indicator. with 1 finger the play is .001 but with 2 fingers and slight pressure max is about .020.. again no end play in and out.. i am going to assume this is fine and put it back on..
You have nothing to worry about.

My turbo could probably be measured in 32nd's of an inch

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post #8 of 9 (permalink) Old 10-31-2007, 09:09 PM
 
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post #9 of 9 (permalink) Old 10-31-2007, 11:25 PM Thread Starter
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thats exactly what i needed to read... sure enough i find in now also while searching threw the stickies on the main 7.3 page here.
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