Maintenance3103−1/A1
Winterthur Gas & Diesel Ltd.
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1) Make sure that the tank heater and lubricating oil separator are set to off for a
minimum of eight hours.
2) Operate the turning gear to move the crank to the BDC 1st position (see Fig. 2).
3) Attach the dial gauge (94305) to the connecting rod. Make sure that the dial
gauge goes into the center punch marks.
4) Turn the rod of the dial gauge to apply tension.
5) Set the dial gauge to zero. The dial gauge must not have a difference of more
than 0.01 mm.
6) Use the turning gear to move the crank to each position shown. At each position,
record the indications on the dial gauge.
Note: You can read from the dial gauge the change in the distance between the
crank webs. The smaller the difference, the better the crankshaft is
aligned.
7) If the difference between the two BDC positions is more than 0.04 mm, you must
do the check again.
CRANK DEFLECTION
SIGN ON DIAL GAUGE
+ −
− +
OR
94305
Fig. 2
VIEW FROM
DRIVING END
CLOCKWISE
DIRECTION
BDC 1st Position
FUEL SIDE
TDC
EXHAUST SIDE
BDC 2nd Position
Approximately.
18 mm
Center Punch Mark for
Dial Gauge 94305
2016
Measuring Crank Deflection
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