Isuzu A-4BG1T User Manual

4-2 ENGINE ASSEMBLY II
jlal INSPECTION AND REPAIR
Make the necessary adjustments, repairs, and part replacements if excessive wear or damage is discov-
ered during inspection.
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CYLINDER HEAD
Cylinder Head Lower Face Warpage
1. Use a straight edge and a feeler gauge to measure
the four sides and the two diagonals of the cylinder
head lower face.
2. Regrind the cylinder head lower face if the mea-
sured values are greater than the specified limit but
less than the maximum grinding allowance.
If the measured values exceed the maximum grind-
ing allowance, the cylinder head must de replaced.
Cylinder Head Lower Face Warpage
mm (in)
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Standard
Limit
Maximum Grinding
Allowance
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0.05
02
03
(0.002) or less
(O.do8,
co.& 2)
Cylinder Head Height (Reference)
mm (in)
Standard
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Limit
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1 89.95 (3.541).90.05 (3.545) 1
89.65 (3.530)
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Note:
If the cylinder head lower face is reground, valve depres-
sion must be checked.
Water Jacket Water Pressure Test
Use the hydraulic gauge to check the water jacket water
pressure.
Apply water pressure to the water jacket at 5 kg/cm*
(71.1 psi) for three minutes.
a’%,)
Check the entire cylinder head for water leakage.

Isuzu A-4BG1T Specifications

General

Brand	Isuzu
Model	A-4BG1T
Category	Engine
Language	English