REPAIR
7-25
7
Cylinder Block Mating Face Distortion
See Figures 7-62 and 7-63.
IMPORTANT
A distorted cylinder head may cause combustion gas to
leak through the head gasket, resulting in overheating
and reduced power.
Figure 7-62
Figure 7-63
Using a straightedge (2) and a feeler gauge (1), inspect
the mating face for distortion. Place the straightedge
across bolt hole centers at the locations indicated.
Measure any gaps with the feeler gauge. If the
measurement exceeds the limit, repair or replace the
cylinder head.
Cylinder Block/Head Mating Face Distortion Limit:
0.001 in. (0.03 mm)
Intake and Exhaust Manifold Mating Face Distortion
See Figure 7-64.
Figure 7-64
Using a straightedge (2) and a feeler gauge (1), inspect
the manifold mating faces for distortion. Place the
straightedge across the mating face, and measure any
gaps with the feeler gauge. If the measurement exceeds
the limit, repair or replace the cylinder head.
Intake and Exhaust Manifold Mating Face Distortion
Limit: 0.000—0.002 in. (0.00—0.05 mm)
TN0405
1
2
TN0406
TN0407
1
2
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