Perkins 103-06, Workshop Manual

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PB04
6
C. Gudgeon pin B. Clearance between small end bush and the
Check the outside diameter of the gudgeon pin. gudgeon pin.
If it is less than the allowable limit, replace. Measure the inside diameter of the connecting
rod small end bush.
If the clearance exceeds the allowable limit.
103-09/10/Perama M25/M30 replace.
Standard OD Allowable limit
20.998-21.002mm
(.8266-.8268")
20.98mm
(.8259')
103-09/10/Perama M25/M30
Standard clearance Allowable limit
103-06 Gudgeon pin
0.008-0.023mm
(.0003-.0009")
0.08mm
(.003")
Standard OD Allowable limit
18.998-19.002mm 18.98mm
103-06 Clearance
(.7480-.7481") (.7472")
Standard
clearance
Allowable limit
0.013-0.028mm 0.08mm
(.0005-.0011") (.0031")
Connecting Rod
- Inspection
A. Distortion or damage.
C. Play between the connecting rod and the
Check the connecting rod for distortion between crankshaft.
the large and small ends of the connecting rod
with a connecting rod aligner. If the result exceeds the
allowable limit, replace.
Assemble the connecting rod to the crankshaft,
and measure the play in shaft direction. If the
play is more than the allowable limit, replace
the connecting rod.
Standard Allowable
value limit
Distortion Less than
(for 100mm) 0.08mm 0.2mm
Standard play Allowable limit
(3.937) (.003) (.0078)
0.1-0.3mm (.
0039-.0118")
0.7mm (
0275 )
Parallel
(for 100mm)
(3.937")
Less than
0 05mm (
0019)
I
015mm
(0059 )
D. Oil clearance
Using the plastigauge, check the oil clearance
as follows.
Remove oil or foreign matter from the bearing
and crankshaft.
Cut the plastigauge to the same width as the
bearing. Place it on the crankshaft. Avoid the
oil hole.
1. Gauge
2. Gudgeon pin
3. Distortion
4. Flat surface of the aligner
5. Pin
1078