TM-9-2815-225-34-P
ENGINE, DIESEL: 6 CYLINDER IN-LINE TURBOCHARGED, CUMMINS MODEL NTC-400
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
JULY 2005
TM-9-2815-225-34-P - Page 170 of 736
TM 9-2815-225-34&P
0014 00
0014 00-4
CYLINDER HEAD (Contd)
CLEANING AND INSPECTION (Contd)
5.
Using vernier depth gauge, measure cylinder head (25) height. Minimum cylinder head height is
4.30 in. (11.024 cm).
6.
Inspect injector sleeves (8) for scratches and cracks.
7.
Inspect all parts for cracking, breaking, excessive wear, or other damage.
8.
Inspect all threaded parts for stripped threads or cross-threading.
ASSEMBLY
1.
Apply cup plug sealant to six new expansion plugs (12), new plug (16), and two new plugs (26),
and to inside diameter of water holes on cylinder head (25).
2.
Using expansion plug driver, install expansion plugs (12), (16), and (26) on cylinder head (25).
NOTE
Step 3 does not apply to No. 2 cylinder head.
3.
Apply clean lubricating oil to two new O-rings (18). Install cover plate (19) and O-rings (18) on
cylinder head (25) with two screws (20).
NOTE
All intake and exhaust valves are installed the same. The
following procedure covers installation of one exhaust valve.
4.
Using valve seat inserter, install new valve seat insert (14) on cylinder head (25).
5.
Using valve stem guide driver, install new valve stem guide (6) on cylinder head (25).
6.
Apply clean lubricating oil to new exhaust valve (15) and install exhaust valve (15) on new valve
stem guide (6) from bottom side of cylinder head (25).
7.
Place cylinder head (25) on protective surface with machined surface down.
8.
Install new spacer (5), if necessary, new valve spring (4), and new retainer (3) over valve stem
guide (6) on cylinder head (25).
NOTE
Stud of valve spring compressor should be installed on rocker
lever screw hole.
9.
Using valve spring compressor, compress valve spring (4) and install valve collet (2) on stem of
valve (15).
10.
Using valve vacuum tester, check seal between valve (15) and valve seat (14).
11.
Install two adjusting screws (24) and new locknuts (23) on exhaust valve crosshead (22).
12.
Install exhaust valve crosshead (22) and crosshead guide (21) on cylinder head (25).
13.
Perform steps 4 through 12 for remaining intake and exhaust valves.
14.
Apply clean lubricating oil to new O-ring (11). Install screw (9), fuel connection (10), and
O-ring (11) on cylinder head (25).
15.
Apply clean lubricating oil to new O-rings (7). Using injector sleeve driver, install injector
sleeve (8) and injector O-ring (7) on cylinder head (25).
16.
Apply clean lubricating oil to eleven dowels (13), and install eleven dowels (13) on cylinder head (25).
17.
Apply liquid thread sealant to four pipe plugs (17), and install pipe plugs (17) on cylinder head (25).
Back to Top
