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Join Date: Nov 2003
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Originally Posted by bkreigsr View Post
Anything related to the turbo (K27-S) itself like sleeves/bearings?
Bill K
Almost without exception (ball bearings) turbos will have two bronze turbine shaft/wheel journal bearings and a bronze thrust bearing.
If your report shows bronze you can give your turbo a quick review. Remove the compressor inlet tube and inspect the compressor blades for impact marks. Many turbos ingest junk and fail. If all looks good here check for radial (side to side) and axial (fore and aft) shaft movement.
Generally, if the compressor wheel blade tips are not touching the housing on the radial test journal bearings are OK. Normal axial play is a few thousands and barely detectable with a good thrust bearing. If you have noticeable axial play the thrust bearing is worn.
Old 03-31-2008, 10:53 AM
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