TM 5-4310-452-14
5-6.
ENGINE BLOCK REPAIR (Con't).
a.
DISASSEMBLY
1.
Remove bolts (25 and 26) and lockwashers (24 and 27) from cover (23) and front cover (34). Discard lockwashers.
2.
Remove bolt (28), lockwasher (29), cover (23), and preformed packing (22) from front cover (34). Discard preformed
packing.
3.
Remove plug (19) from front cover (34).
4.
Inspect dowel sleeve (30) for damage. Replace if necessary.
5.
Remove encased plain seal (31) from front cover (34). Discard encased plain seal.
6.
Remove bolts (18, 21, and 32) and washers (17, 20, and 33) from front cover (34).
7.
Remove front cover (34) from engine block (6).
8.
Remove oil pump suction pipe (see paragraph 5-18).
9.
Remove oil pump and drive gear (see paragraph 5-17).
10. Remove allen head screw (35) and idler gear assembly (36).
11. Remove sleeve bushing (37), roller bearing (38), and sleeve bushing (39) from idler gear assembly (36).
12. Remove camshaft (see paragraph 5-15).
13. Drill and tap 4 cylinder oil spray nozzles (44). Install oil nozzle tool and remove 4 cylinder oil spray nozzles and
preformed packings (43). Discard cylinder oil spray nozzles and preformed packings.
14. Remove plug (42) and washer (41) from engine block (6).
15. Remove 8 bolts (48), lockwashers (47), and rear cover (2). Discard lockwashers.
16. Remove shaft seal (1) from rear cover (2). Discard shaft seal.
17. Remove plug (3) and washer (4) from engine block (6).
18. Remove expansion plug (5).
19. Remove 5 plugs (9), washers (8), and plugs (7).
20. Remove plug (11) and washer (10).
21. Remove core hole plug (12) from engine block (6).
22. Remove screw (14) and deflector plate (13).
23. Remove bushing (15) from engine block (6).
24. Remove plug (16) and dowel pin (40) from engine block (6).
25. Remove dipstick (46) and preformed packing (45). Discard preformed packing.
b.
ASSEMBLY
1.
Install dipstick (46) and new preformed packing (45).
5-14
