TM 10-3930-675-24-2
CYLINDER HEAD REPLACEMENT - CONTINUED
0199 00
INSPECTION - CONTINUED
4.
Perform leak test for exhaust valves as follows:
a.
Place cylinder head (4) on work bench with exhaust ports facing up.
b.
Pour fuel into exhaust port (29) until full.
c.
If fuel drips (30) or runs down face of head within 30 seconds, disassemble and repair cylinder head.
d.
Perform steps b and c for each exhaust port.
4
29
30
5.
Perform leak test for intake valves as follows:
a.
Place cylinder head on work bench with exhaust ports facing up.
b.
Pour fuel into one intake port until full.
NOTE
Each intake port supplies two cylinders on M Series cylinder heads.
c.
If fuel drips or runs down face of cylinder head within 30 seconds, disassemble and repair cylinder head.
d.
Perform steps b and c for all six cylinders.
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