JAC HFC4DA1-2C User Manual

Maintenance manual for sunray hfc4da1-2c china-IV diesel engines
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cylinder head.
If the measurement is between limit and standard
value, re-grind the fitting surface between exhaust
branch pipe and cylinder head.
If the measurement is out of the specified limit, make
sure to replace the branch pipe.
d. Use a multimeter to measure the outside diameter of
piston at the position 73.9mm reach from the piston
crown.
Standard value:
A: 92.971~92.980mm
B: 92.981~92.990mm
C: 92.991~93.000mm
D: 93.001~93.010mm
e. Use an inside micrometer to measure:
Standard value for inside diameter of cylinder bore
fitted with cylinder sleeve:
A:93.021~93.030mm
B:93.031~93.040mm
C:93.041~93.050mm
D:93.051~93.060mm
f. Subtract the inside diameter of cylinder bore from the
outside diameter of piston to obtain the piston
clearance. The clearance range of piston:
0.041~0.059mm.
If the piston clearance is out of the specified range,
check and replace the cylinder sleeve or piston,
depending on the cylinder bore grouping and the
outside diameter of piston.
(The second line of the stamped code at the rear end
of lower surface of new cylinder block indicates the
inside diameter group of the cylinder bore).

JAC HFC4DA1-2C Specifications

General

Brand	JAC
Model	HFC4DA1-2C
Category	Engine
Language	English