Service Manual

ISB, ISBe and QSB (Common Rail [...] Flywheel Housing
Section 16 - Mounting Adaptations - Group 16 Page 16-37
To buy Cummins Parts and Service Manuals, Training Guides, or Tools go to our website at https://store.cummins.com
The maximum allowable total indicator reading (TIR) is
determined by the diameter of the housing bore. If out of
specifications, replace the housing.
NOTE: For rear gear train engines, the rear gear housing
may also be the cause of the TIR being out of
specification.
Flywheel
Housing
Bore and
Face
Runout
SAE Bore
Diameter
Total
Indicator
Reading
Maximu
m
Number mm in mm in
00 784.15 to
784.65
30.990 to
31.010
0.25 0.01
0 657.45 to
647.95
25.490 to
25.510
0.28 0.011
1/2 584.00 to
584.40
22.992 to
23.008
0.30 0.012
1 510.98 to
511.38
20.117 to
20.133
0.36 0.014
2 447.55 to
447.81
17.620 to
17.630
0.41 0.016
3 409.45 to
409.71
16.120 to
16.130
0.48 0.019
Attach the dial indicator gauge, Part Number 3376050, to
the crankshaft. Use mounting tool Part Number ST1325 to
attach the dial indicator to the crankshaft as illustrated.
NOTE: The dial indicator can be mounted by any method
that holds the extension bar of the indicator rigid, so it
does not sag. If the bar sags or the indicator slips, the
readings obtained will not be accurate.
Position the indicator in the 6-o'clock position, and zero
the gauge.