Dongfeng Chaoyang Diesel engine Co CYQD 32 Series CYQD32, Service Manual

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2. Injection pump
To checking and adjusting
injection pump
To check plunger lift:
1. To disassembly high pressure
oil pipe and hollow bolt adopter,
and install dial gauge.
2. To measure plunger lift:
(1) To make crankshaft from the
first cylinder piston T. D.C rotate
anticlockwise 20
°
-25
°
.
(2) On the above position, dial
gauge reading should be adjusted
zero.
(3) To rotate crankshaft clockwise
until the first cylinder piston
reached T.D.C.
(4) Dial gauge reading:
CYQD32: 0.416
±
0.020
CYQD32GR: 0.468
±
0.020
CYQD32T: 0.527
±
0.020
CYQD32Ti: 0.736
±
0.020
(5) If reading is not in above scope,
we must adjust it as follows:
A: if reading is smaller than
requirement, we should rotate
pump
anticlockwise.
B: if reading is bigger than
requirement, we should rotate
pump clockwise until it meets the
requirement.
3. Hollow bolt adopter torque
14-20 N.m
4.
High pressure fuel pipe
connecting nut torque 20-25 N.m
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