911T Registry

Timing Chain Housing

Measuring Point Installation Size
with Tolerances
Clearance (+)
or Preload (-)
Wear Limit
mm from to mm
Pivot shaft for sprocket wheel carrier to chain tensioner housing B 15.000-15.018 +0.016 +0.045 Visual check
S 14.973-14.984
Pivot shaft for sprocket wheel carrier to sprocket wheel carrier B 15.000-15.018 +0.016 +0.045
S 14.973-14.984
Sprocket wheel carrier to sprocket wheel shaft B 15.000-15.018 0.000 +0.029
S 14.989-15.000
Sprocket wheel to sprocket wheel shaft B 15.032-15.050 +0.032 +0.061 Visual check
S 14.989-15.000
Stud to chain guide rail B 8.000-8.015 +0.105 +0.129
S 7.886-7.895
Stud to chain housing B 7.857-7.872 -0.014 -0.038
S 7.886-7.895
Parallel alignment of both sprocket wheels may not deviate by more than 0.25mm

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Revised: March 29, 2001 .