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 376 of 736

TM 9-2815-225-34&P
0042 00
0042 00-22
CYLINDER BLOCK COMPONENTS INSTALLATION (Contd)
FLYWHEEL, FLEXPLATE, AND FLYWHEEL HOUSING
1.
Install new gasket (3) and rear cover (4) on cylinder block (2) with eight screws (5). Tighten
screws (5) only enough to hold rear cover (4) in position.
2.
Using crankshaft oil seal driver, align rear cover (4) with crankshaft (1).
3.
Using dial indicator, check alignment of rear cover (4) to crankshaft (1). Rear cover (4) must be on
common center with crankshaft (1) within 0.010 in. (0.254 mm). Rear cover (4) must be square to
centerline of crankshaft (1) within 0.010 in. (0.254 mm). Rear cover (4) must be within 0.004 in.
(0.102 mm) of being flat with oil pan flange of cylinder block (2).
4.
Tighten eight screws (5) 30–35 lb-ft (41–48 N
•
m). Cut off excess gasket (3) material so that
gasket (3) is even with, or not more than, 0.010 in. (0.254 mm) above oil pan flange.
NOTE
New rear main seals have an assembly tool which protects seal
lip during shipment and installation. Do not use any lubricant
to install seal. Oil seal must be installed with lip of seal and
crankshaft clean and dry.
5.
Install new rear main seal (6) on crankshaft (1). Position largest diameter of assembly tool toward
cylinder block (2).
6.
Push rear main seal (6) from assembly tool onto crankshaft (1). Using crankshaft rear oil seal
driver, drive rear main seal (6) on rear cover (4).
7.
Remove two dowel pins (12) if installing new flywheel housing (9), or if dowel is damaged or
outside diameter is less than 0.5005 in. (12.713 mm), and install two flywheel housing guide pins
in their place.
NOTE
Perform steps 8 and 9 for Big Cam I only.
8.
Install new seal (7) on crankshaft (1).
9.
Install eleven new O-rings (8) on flywheel housing (9).
10.
Install flywheel housing (9) on cylinder block (2) with seven of nine screws (10) and washers (11).
Tighten screws (10) 10–20 lb-ft (14–27 N
•
m).
11.
Remove two flywheel housing (9) guide pins, if installed, and install two remaining screws (10)
and washers (11) on flywheel housing (9).


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