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#1
12-29-2007, 04:08 PM
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Shaft play
i was Just wondering how much side to side turbo compressor shaft play you guys deem acceptable. I got my 18g and I tested it and I can move it side to side a bit I'm guessing a bout 5mm. I know the real answer is its only a problem when it starts scraping against the compressor housing but what I want to know is if theres a general agreement on how much is too much.
thanks in advance.
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FP 18g turbo e3 o2 & mani, 3" exhaust, , 7 bolt, wiseco/eagle, walbro 255hp re-wired, Aeromotive FPR, FIC 1150cc, injen intake, greddy RS, aem wideband, turbo xs mbc, act 2600 clutch sprung 6 puck, BC 272's, dsmlink v2.5, ETS FMIC, Devils Own, JMF SMIM. 18 Inch chrome rims In closet AEM Fuel Rail, SS Lines, 1997 TSI AWD Diamonds Are 4Ever 12.7 @ 107 http://i83.photobucket.com/albums/j2...y/DSC00461.jpg 
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#2
12-29-2007, 04:48 PM
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Re: Shaft play
I dont think mine moves more than 2mm or so. 5mm is a good bit of play, sounds like the turbo will be needing a rebuild pretty soon in the future. I would expect it to smoke some also.
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98 Eclipse GS Turbo Megasquirt 2 - Holset HY35 Turbo - Built motor - P&P Head and Intake - 3" Turbo back - FMIC - Greddy RZ BOV - Walbro 255 - Aeromotive AFPR - 650cc Injectors - Fidanza Flywheel - Zoom clutch - 13" Cobra Front Brakes - AEM WB - Devilsown meth injection - 3.55 Final Drive gear ratio 1981 Chevy Scottsdale 1987 Nissan 300zx - Chump Car 2001 BMW 325i - DD
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#4
12-30-2007, 11:23 AM
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Re: Shaft play
Yes I belive he got it about a week ago
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98 Eclipse GS Turbo Megasquirt 2 - Holset HY35 Turbo - Built motor - P&P Head and Intake - 3" Turbo back - FMIC - Greddy RZ BOV - Walbro 255 - Aeromotive AFPR - 650cc Injectors - Fidanza Flywheel - Zoom clutch - 13" Cobra Front Brakes - AEM WB - Devilsown meth injection - 3.55 Final Drive gear ratio 1981 Chevy Scottsdale 1987 Nissan 300zx - Chump Car 2001 BMW 325i - DD
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#5
12-30-2007, 01:15 PM
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Re: Shaft play
Awwww dude. Yeah, it should barely click back and forth man. When I had mine out I didnt measure it but it was I'd say that it was for sure no more than 1-2mm.
Garrett, sounds like you and me need to go to Minot and do work.
__________________
 Build on hold until I get a good paying job, either in school or once I get out. At that time a full tear down and complete rebuild should be in order. The Purple People Eater will ride again... January 2011 can't come soon enough.
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#6
12-30-2007, 02:04 PM
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Re: Shaft play
Quote:
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95 Talon TSI AWD 97 Eclipse GST 
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#7
12-30-2007, 07:47 PM
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Re: Shaft play
Actually its not as bad as I thought. I think I was just over paranoid having never bought a used one before. I got 2 unbiased opinions who judged it to be no more than 2mm. I tried to measure but its just too difficult with such small increments. I think it should be ok. I'm not going to put it on till it warms up a bit. Working on the car in the cold is a bitch as I'm sure most of you know. I will update you when I get some real driving with it.
One thing I will be able to tell for sure is if I'm making any more airflow. As I sift through my logs the most I have ever really pushed is 39.2lbs/min. I'm hoping for a realistic 42 but would be estatic if I could make 45. Only logs and time will tell.
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FP 18g turbo e3 o2 & mani, 3" exhaust, , 7 bolt, wiseco/eagle, walbro 255hp re-wired, Aeromotive FPR, FIC 1150cc, injen intake, greddy RS, aem wideband, turbo xs mbc, act 2600 clutch sprung 6 puck, BC 272's, dsmlink v2.5, ETS FMIC, Devils Own, JMF SMIM. 18 Inch chrome rims In closet AEM Fuel Rail, SS Lines, 1997 TSI AWD Diamonds Are 4Ever 12.7 @ 107 http://i83.photobucket.com/albums/j2...y/DSC00461.jpg
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#8
12-30-2007, 08:41 PM
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Re: Shaft play
Do you have a way of taking a vid?
__________________
Build on hold until I get a good paying job, either in school or once I get out. At that time a full tear down and complete rebuild should be in order. The Purple People Eater will ride again... January 2011 can't come soon enough.
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#9
12-30-2007, 10:31 PM
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Re: Shaft play
nah my camera is broke only records sound :@
__________________
FP 18g turbo e3 o2 & mani, 3" exhaust, , 7 bolt, wiseco/eagle, walbro 255hp re-wired, Aeromotive FPR, FIC 1150cc, injen intake, greddy RS, aem wideband, turbo xs mbc, act 2600 clutch sprung 6 puck, BC 272's, dsmlink v2.5, ETS FMIC, Devils Own, JMF SMIM. 18 Inch chrome rims In closet AEM Fuel Rail, SS Lines, 1997 TSI AWD Diamonds Are 4Ever 12.7 @ 107 http://i83.photobucket.com/albums/j2...y/DSC00461.jpg
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#10
01-01-2008, 11:35 PM
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Re: Shaft play
sweet! 18g! wanna see a before and after log with link...
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#11
01-02-2008, 12:36 AM
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Re: Shaft play
It's amazing how much thrust play a turbo can have and still "work." Only problem is once the shaft play is "bad," it continues to wear itself out at a good rate until it's gone. Glad to hear yours turned out ok.
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Kevin Jewer RWD Talon - 7.92 at 180 Mightymax - 10.7 at 125
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