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Join Date: May 2015
Location: Burleson, TX
Posts: 29
K28 turbo rebuild

As I dive deeper into my '86 turbo project, I have found some end play in my K28 turbo. My first question to you turbo gurus out there is, how much end play is acceptable and how would I go about precisely measuring this end play? Second question is, if I just wanted to get the stock K28 turbo rebuilt, who is the best source for this service? I did a search on the site, but most of the responses I saw were fairly dated, so I thought I would ask the question and see if there were any new sources. Thanks for the help. BTW, I'm not planning on racing or looking for big power boost, just stock configuration. Thanks again.
Jesse
Old 11-17-2017, 10:55 AM
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Charlie Brown evergreen turbo
Welcome to Evergreen Turbo - EVERGREEN TURBO
Charlie is ighly reputable and does outstanding work.
Old 11-17-2017, 04:06 PM
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Join Date: Sep 2008
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Factory workshop manual:
  • max end play 0.16 mm
  • max radial play 0.42 mm
Peter
Old 11-18-2017, 03:53 AM
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Thanks gents for the inputs.
Jesse
Old 11-18-2017, 10:35 AM
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More Boost!
 
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FYI k26/6 is stock, unless you have a turbo S k28/6 or a k28/7 in your 86 951. Good to know before sending out to get rebuilt.
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88 951 aka "Whitey Bulger"
85.5 944 N/A aka "Redd Foxx"- Sold but not forgotten..
Old 11-28-2017, 04:28 AM
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In the Fires of Hell.....
 
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Turbo S is a K26/8. It uses the same cold side as the non-S cars, only the hot side is larger.
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'88 951S - with LBE, Guru chips, 3Bar FPR, 1.3mm shimmed WG
3300 lbs, 256 RWHP, 15 psig boost
"Certified National PCA Instructor" Hoooohah!
1987 924S 944 SPEC racecar - '88 pistons/DME, short 5th
Old 11-28-2017, 04:36 AM
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More Boost!
 
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Doh! 26/8 on 944T S. Thanks KD
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88 951 aka "Whitey Bulger"
85.5 944 N/A aka "Redd Foxx"- Sold but not forgotten..
Old 11-29-2017, 07:03 PM
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