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

  TM-9-2815-225-34-P - Page 478 of 736

TM 9-2815-225-34&P
0050 00
0050 00-4
BIG CAM III MODIFICATION KIT INSTALLATION INSTRUCTIONS (Contd)
Figure 4. Big Cam I Flywheel Housing and Flywheel Installation.
FLYWHEEL HOUSING
GUIDE PIN
1
2
7
6
5
4
3
A
C
E
B
D
F
8
BIG CAM III INSTALLATION PROCEDURES (Contd)
4.
Install two flywheel housing guide pins on Big Cam III engine (1).
5.
Install Big Cam I flywheel housing (2) on Big Cam III engine (1) with seven of nine screws (6) and
washers (7). Tighten screws (6) 10–20 lb-ft (14–27 N
•
m).
6.
Remove two flywheel housing guide pins from Big Cam III engine (1) and install two remaining
screws (6) and washers (7) on Big Cam I flywheel housing (2). Tighten screws (6) 10–20 lb-ft
(14–27 N
•
m).
7.
Install two 5/8–18x6 in. guide studs in opposite holes on Big Cam III crankshaft (8) until fully seated.
8.
Apply lubricating oil to threads of screws (4) and face of washers (3). Allow excess oil to drain
from screw threads.
9.
Install Big Cam I flywheel (5) on Big Cam III crankshaft (8) with four screws (4) and washers (3).
Tighten screws (4) hand-tight in sequence shown in figure 4.
10.
Remove two guide studs and install two remaining screws (4) and washers (3) on Big Cam I
flywheel (5). Tighten screws (4) 70 lb-ft (95 N
•
m) then 140 lb-ft (190 N
•
m) and finally 200–220 lb-
ft (271–298 N
•
m) in sequence shown in figure 4.
NOTE
The flywheel must be pushed toward front of engine to remove
crankshaft end clearance when crankshaft is rotated and
measurements are taken. If total indicator readings exceed
limits, remove flywheel; clean flywheel and crankshaft flange
faces, install, and repeat runout checks.
11.
Install dial gauge attachment and dial indicator on Big Cam I flywheel housing (2).
12.
Position contact tip of dial indicator against wide diameter of Big Cam I flywheel (5) bore and set
dial indicator to zero. Rotate crankshaft (8) one complete revolution. Total indicator reading must
not exceed 0.005 in. (0.127 mm).
13.
Inspect Big Cam I flywheel (5) face runout and install or reposition dial indicator on Big Cam I
flywheel housing (2).
14.
Position contact tip of dial indicator against face of Big Cam I flywheel (5) as close to outside
diameter as possible. Rotate crankshaft (8) one complete revolution. Total indicator reading must
not exceed 0.005 in. (0.127 mm).
15.
Install Big Cam III engine in vehicle. Refer to WP 0048.


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