Service Manual

Flywheel Housing ISB, ISBe and QSB (Common Rail [...]
Page 16-36 Section 16 - Mounting Adaptations - Group 16
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Using the barring tool, Part Number 3824591, slowly
rotate the crankshaft.
Record the readings at the 3-o'clock (A), 6-o'clock (B) ,
and 9-o'clock positions (C).
The values for A, B, and C could be positive or negative.
Continue to rotate the crankshaft until the indicator is at
the 12-o'clock position.
Check the indicator to make sure the needle points to
zero. If it does not, the readings will be incorrect and the
procedure will have to be redone.
Determine the total indicator reading (TIR).
TIR is determined by calculating the difference between
the highest and lowest measurement from the four
locations measured.
As the example below illustrates, the TIR would be:
+ 0.08 mm — (-0.05 mm) = 0.13 mm
[+.003 in — (-0.002 in) = 0.005 in]
Example:
12 o'clock 0.00 mm [0.000 in]
3 o'clock +0.08 mm [+0.003 in]
6 o'clock - 0.05 mm [- 0.002 in]
9 o'clock +0.08 mm [+0.003 in]
Equals TIR 0.13 mm [0.005 in]