Crankshaft Runout - Measure; Crankshaft Gear - Inspect; Crankshaft Gear - Replace - Mitsubishi S6R Series Service Manual

5.7 Crankshaft Runout - Measure

Support the crankshaft at front and rear main journals with
V-blocks, and measure the crankshaft runout at the center
main journal with dial gauge. If the runout deviates slightly
from the standard, correct the crankshaft by grinding. If the
value exceeds the standard considerably, straighten the
crankshaft with pressing machine.
If the value exceeds the limit, replace the crankshaft with a
new one.
If the crankshaft is repaired by grinding or pressing, inspect
the crankshaft for cracks and other harmful damage with
magnetic particle inspection.
Item Standard value
0.04 mm
Crankshaft runout
[0.0016 in.] or less

5.8 Crankshaft Gear - Inspect

If there is any defect on the crankshaft gear teeth, such as
flaking, wear, or local contact, replace the crankshaft gear
with a new one.

5.9 Crankshaft Gear - Replace

Use protective gloves when you touch hot parts.
Handling with bear hands could result in burns.
5.9.1 Crankshaft Gear - Remove
Using a gear puller, remove the gear from crankshaft.
Note: When removing the crankshaft gear by heating, the
heating temperature is 180°C [356°F] or less.
Chapter 6 INSPECTION AND REPAIR OF BASIC ENGINE
Limit value Remarks
0.10 mm
TIR
[0.0039 in.]
V-block
Surface plate Surface plate
1/2
Crankshaft Runout - Measure
Crankshaft gear
Crankshaft Gear - Remove
1/2
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