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Old 02-01-2012, 03:31 AM   #1
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Default BB turbo shaft play

Just trying to confirm something real fast.

What is the acceptable axial (In and out) shaft play on a ball bearing turbo?
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Old 02-01-2012, 08:29 AM   #2
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This question pertains specifically to Garrett sleeve-bearing turbos, and not the turbonetics angular design for more details to the OP. Additionally, this is in a "no oil" situation, aka new or used-and-has-been-sitting.
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Old 02-01-2012, 10:31 AM   #3
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Either mic it or show us a video of the play in the shaft.
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Old 02-01-2012, 10:34 AM   #4
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Quote:
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Either mic it or show us a video of the play in the shaft.
Roger, when I get back to the US, I'll make a video showing you all the play of the shaft.
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Old 02-01-2012, 10:55 AM   #5
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Roger, when I get back to the US, I'll make a video showing you all the play of the shaft.
At another Marxism convention in Soviet Russia?
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Old 02-01-2012, 10:57 AM   #6
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At another Marxism convention in Soviet Russia?
Worse.

A trip to the Netherlands/Germany that just might include a trip to the Nurburgring.
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Old 02-03-2012, 05:10 AM   #7
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Quote:
Originally Posted by blaen99 View Post
Worse.

A trip to the Netherlands/Germany that just might include a trip to the Nurburgring.
You're going to go around a race track with your current run of luck?

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Old 02-03-2012, 06:42 PM   #8
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like 1/8 inch
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Old 02-04-2012, 05:20 AM   #9
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Stay out. Go away. Nothing here.
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Old 02-04-2012, 06:54 AM   #10
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Quote:
Originally Posted by Faeflora View Post
like 1/8 inch
Are you 100% certain about this?

I've been told I'm looking for 0.3mm of play on BB, but 3mm (About 1/8th inch) of play on a journal bearing.

If it is 3mm, I salute you sir. The center housing is good to go!
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Old 02-04-2012, 04:07 PM   #11
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Quote:
Originally Posted by Faeflora View Post
like 1/8 inch
I typically use the width of a sawzall blade


Serious answer: No axial shaft play is acceptable, radial shaft play should be less than ~0.75mm or so.
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Old 02-05-2012, 03:27 AM   #12
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Quote:
Originally Posted by Savington View Post
I typically use the width of a sawzall blade


Serious answer: No axial shaft play is acceptable, radial shaft play should be less than ~0.75mm or so.
Thanks Sav. The radial play is within spec, but there's significant axial shaft play. This bodes poorly for the bearings.
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