Perkins 103-06, Workshop Manual

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3
C. Camshaft gear and bearing assembly:
6
5
8
2. Camshaft gear 3.
Camshaft
4. Tachometer gear
5. Spacer 6. Roller
bearing 7. Shim
8. Slider
1090
Oil Pump
- Disassembly
A. Remove the snap ring.
B. Take out collar spring and shim.
C. Remove idle gear vane and oil pump cover
together.
D. Pull out rotor and thrust washer.
E. Pull out the oil pump cover from idle gear.
F Remove spring from the idle gear. Remove the
knock pin.
If these items have been replaced it is essential
the spacers and shims etc are assembled in the
order illustrated in 1090.
Timing Gear -
Inspection
A. Check the timing gears for wear and damage on
the contact area. Replace if any defect is found.
B. Measure the back-lash of gears with a thickness
gauge or dial gauge. If the allowable limit is
exceeded, replace all timing gears.
PB061
1. Snap ring 6. Rotor
2. Collar 7. Spring
3. Spring 8. Idle gear
4. Shim 9. Thrustwasher
5. Oil pump cover
- Inspection
A. Check oil pump cover, rotor and vane for wear. If
excessively worn or damaged; replace.
B. Check the clearance between the rotor and vane.
If the clearance is excessive, replace.
C. If the idler gear hub needs replacing contact
Perkins service department for procedure.
- Reassembly
A. Reassemble the oil pump in reverse order of
disassembly.
B. Align set marks on the crankshaft gear and idle
gear to reassemble.
C. Check the side clearance between the rotor and
vane is 0.01 to 0.15mm (.0004 to.006") for 103-
09/ 10/Perama M25/M30, and 0.02 to 0.15mm (.
0008 to .0059") for 103-06. Allowable limit 0.
25mm (.0098").
1094
Standard back-lash Allowable limit
0.08mm
(.003 )
0.25mm
(.010")
PB060