3306 VEHICULAR ENGINE FOR D5B, D6D & D7G TRACTORS – Timing Gears

1W4563, 1W5634 Gear Group

(1) Fuel pump drive gear.

(2) Washer. Assemble with large diameter away from gear.

(3) Bolt. With the timing pin and timing bolt correctly installed, put a clockwise force of 70 N·m (50 lb ft) on the drive gear for the fuel pump and tighten bolt to … 270 ± 25 N·m (200 ± 20 lb ft)

(4) Fuel pump idler gear.

End play for the idler gear (new) … 0.10 to 0.41 mm (.004 to .016 in)

Maximum permissible end play (worn) … 0.86 mm (.034 in)

Bore in bearing for the idler gear (new) … 35.004 ± 0.048 mm (1.3781 ± .0019 in)

Diameter of shaft for idler gear (new) … 34.902 ± 0.020 mm (1.3741 ± .0008 in)

Clearance between shaft and bearing (new) … 0.033 to 0.168 mm (.0013 to .0066 in)

Maximum permissible clearance between shaft and bearing (worn) … 0.23 mm (.009 in)

(5) Plate. Assemble machined side of plate adjacent to the shaft.

(6) Bolt. Tighten to … 25 ± 7 N·m (18 ± 5 lb ft)

(7) Camshaft gear.

(8) Bolts. Tighten to … 55 ± 7 N·m (40 ± 7 lb ft)

(9) Crankshaft gear.

Maximum temperature of the gear for installation on the crankshaft … 316°C (600°F)

(10) Idler gear for oil pump.

(11) Drive gear for oil pump.

2P9642 Gear Group

(1) Fuel pump drive gear.

(2) Washer. Assemble with large diameter away from gear.

(3) Bolt. With the timing pin and timing bolt correctly installed, put a clockwise force of 70 N·m (50 lb ft) on the drive gear for the fuel pump and tighten bolt to … 149 ± 7 N·m (110 ± 5 lb ft)

(4) Fuel pump idler gear.

End play for the idler gear (new) … 0.10 to 0.41 mm (.004 to .016 in)

Maximum permissible end play (worn) … 0.86 mm (.034 in)

Bore in bearing for the idler gear (new) … 35.004 ± 0.048 mm (1.3781 ± .0019 in)

Diameter of shaft for idler gear (new) … 34.902 ± 0.020 mm (1.3741 ± .0008 in)

Clearance between shaft and bearing (new) … 0.033 to 0.168 mm (.0013 to .0066 in)

Maximum permissible clearance between shaft and bearing (worn) … 0.23 mm (.009 in)

(5) Plate. Assemble machined side of plate adjacent to the shaft.

(6) Bolt. Tighten to … 25 ± 7 N·m (18 ± 5 lb ft)

(7) Camshaft gear.

(8) Bolts. Tighten to … 55 ± 7 N·m (40 ± 7 lb ft)

(9) Crankshaft gear.

Maximum temperature of the gear for installation on the crankshaft … 316°C (600°F)

(10) Idler gear for oil pump.

(11) Drive gear for oil pump.

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