3-7. CYLINDER HEAD REMOVAL (Cont).
If replacing cylinder head, ensure that ail glow plugs, switches (see
TM 9-2320-289-20), fuel injector nozzles (see paragraph 3-5), and valves
(see paragraph 3-8) are removed from damaged cylinder head and
installed in new cylinder head.
Inspect cylinder head (5) for cracks between each intake port (8) and exhaust port (10).
Inspect cylinder head where cylinder head gasket will be installed for nicks, heavy scratches,
or other damage. Replace cylinder head if any of these conditions exists.
Using straightedge (12) and feeler
gage (11 ), measure cylinder head
(5) for warpage. If warped more than
0.006 in. (O. 15 mm) lengthwise or
replace cylinder head.
Check each prechamber (9) for
proper installation. Prechamber must
not be recessed in cylinder head (5).
Prechamber should protrude from
surface of cylinder head no more
than 0.002 in. (0.05 mm) at any
point, Using straightedge (12) and
measurement at two or more points
on each prechamber. If prechamber
protrudes too far, tap into place with
socket and light mallet. If prechamber
is recessed or damaged, perform
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