TM 9-2320-302-34
0037 00-4
BULL/IDLER GEAR REPLACEMENT - CONTINUED
0037 00
INSTALLATION - CONTINUED
2.
Bar engine over until crankshaft timing gear timing mark (9) is at 12 o’clock position.
3.
Align timing mark (10) on camshaft drive gear with timing mark (11) on adjustable gear.
CAUTION
Do not allow bull/idler gear to come in contact with crankshaft oil seal contact surface. Oil leaks may result
if this surface is scratched.
4.
Install bull/idler gear (6) on two guide studs (4). Slide assembly toward engine, but do not engage any gears.
5.
Align timing mark (12) on bull/idler gear (6) with timing mark (9) on crankshaft timing gear. Engage bull/idler gear and
crankshaft timing gear only enough to prevent rotation of bull/idler gear.
NOTE
Slight rotation of adjustable idler gear may be necessary to align timing marks.
6.
Looking through viewing hole (13) in bull/idler gear (6), align timing mark (14) on adjustable idler gear with timing
mark (15) on camshaft idler gear.
7.
Slide bull/idler gear (6) toward engine, engaging adjustable gear, and seat assembly in recess of gear case and cylinder
block.
8.
Working through two access holes (2) in bull/idler gear (6), install two mounting bolts (3) through hub and into cylinder
block. Tighten bolts hand tight.
9.
Remove two guide studs (4) and install two remaining mounting bolts (3). Tighten four bolts to 75-86 lb-ft (102-117
Nm).
10.
Remove crankshaft protector (5) and engine barring tool (1).
10
11
4
15
14
13
6
12
9
4
