Doosan DE12T - Timing Gear

9.3.11. Timing gear
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Install the oil pump idle gear onto the
No.7 bearing cap.
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Install a thrust washer over the camshaft
and assemble the cam gear by aligning
it with camshaft key groove.
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With the oil port on the idle gear pin fac-
ing the cylinder block, install the idle
gear pin.
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Install the idle gear by coinciding the
marks impressed on the crank gear,
cam gear, fuel injection pump drive gear,
and idle gear.
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Install a thrust washer on the idle gear
and tighten to specified torque.
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Check and adjust the amount of back-
lash between gears using a feeler
gauge.
- 96 -
Torque 3.1 kg
¥ m
Torque 7.4 kg ¥ m
EAMD083I
Idle gear pin
EA8M3004
Idle gear pin
EA8M3005
Fuel injection
pump drive gear
Idle gear
Cam gear
Crank
gear
Mark "0"
Mark "2"
2
2
2
Mark "1"
1
1
1
Measuring position
Backlash Limit
(between)
Cam gear & idle gear 0.16 ~ 0.28 mm 0.35 mm
Crank gear & idle gear 0.16 ~ 0.28 mm 0.35 mm
Injection pump &
0.16 ~ 0.28 mm 0.35 mm
idle gear