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Forced Induction Discuss topics relating to turbochargers, superchargers, and nitrous oxide systems. |
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10-25-2005, 03:42 PM | #1 | |
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ball bearing shaft play
I bought a gt35r and it has quite a bit of shaft play, Im wondering how to measure it exacly and what should it be?
Tom |
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10-25-2005, 06:41 PM | #2 | |
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Re: ball bearing shaft play
It shouldn't have any shaft play...it could operate with just a very minimal amount of wiggle, but it's probably not going to last very long.
Are the fins on the turbine chipped or worn at all? Is there any oil residue on the insides of the turbo (I mean a very very noticeable amount)? The only bad thing with a BB turbo is that if the seals are fuxored then you can't have the center section rebuilt. You'll have to end up ordering a new one. Hopefully you didn't pay too much. |
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10-25-2005, 06:55 PM | #3 | |
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Re: ball bearing shaft play
hm... bought it brand new from himni racing... ~1400 the turbo is new never ran etc, nothing chipped or scraped i checked a few times. just has a bunch of play to the point where its REALLY close to hitting the housing.
Tom |
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10-25-2005, 07:45 PM | #4 | |
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Re: ball bearing shaft play
If it's brand new maybe it just needs to be broken in.
If it's really a faulty turbo, then you should have some sort of warranty on it. Take it to a shop that deals with performance turbos and see if they'll look at it. Or install it and see how it goes. If it's not touching the walls it'll be fine. |
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10-25-2005, 10:46 PM | #5 | ||
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Re: Re: ball bearing shaft play
Quote:
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1988 conquest TSI -Lots of mods, finally finished WOOT!! Horsepower sells cars, Torque wins races! |
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10-26-2005, 05:47 PM | #6 | |
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Re: ball bearing shaft play
I really meant to say ideally....but yah, it won't ever not wiggle, but i've not seen any turbos that are brand new wiggle enough to make me think something is wrong.
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10-27-2005, 01:41 PM | #7 | |
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Re: ball bearing shaft play
How do i test for shaftplay? I wanna measure it, I have feller gauges and a caliper. Im guessing the caliper is useless but one of the garrett dealers said to use feller gauges. How would i go about doing that?
Thanks Tom |
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10-27-2005, 06:42 PM | #8 | |
AF Enthusiast
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Re: ball bearing shaft play
id probably just stick my feelers on the inside wall between the wheel and see how much gap there is, and then do the same for the turbine side..
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1988 conquest TSI -Lots of mods, finally finished WOOT!! Horsepower sells cars, Torque wins races! |
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10-27-2005, 10:01 PM | #9 | |
240SX Guy
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Re: ball bearing shaft play
Its called clearance. If it had zero, then the shaft woudl lock up once any heat was applied.
If there isn't any contact with the sides, then you are prolly just fine.
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-Cory 1992 Nissan 240sx KA24DE-Turbo: The Showcar Stock internals. Daily driven. 12.6@122mph 496whp/436wtq at 25psi |
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