Perkins 103-06 Workshop Manual page 29

F After grinding the crankshaft journal, check the
oil clearance.
Crankshaft journal (bush) 103-06
Bush Bush code No.
size
S.TD. 198517300
U.S.O. 25 198517304
(.010")
U.S.O. 50 198517307
(.020")
After grinding the crankshaft journal, confirm
that correct oil clearance.
How To Replace Bush
1. Removal of bush
Remove the bush from the housing (Cylinder
Block) using Bush Driving Tool to prevent
damage.
2. Press fitting the bush
2.1 Prior to installing the bush inspect the bush
housing for marks, scratches, etc.
2.2 The bush should be smoothly pressed in
to correct depth by using Bush Driving
Tool, adjusting the oil hole and direction
of bush as per attached PB129 and
following sequence.
(1)
Press in the bush to cylinder block from
engine front side.
Note:
Must not press in the bush to cylinder block
from the opposite side. The correct pressing
side is chamfered etc, to allow smooth
operation.
Align oil hole of the housing and bush.
(2) (
install the bush confirming the mark and oil
3)
groove (hole).
(4) Lubricate at outer surface of the bush.
Press in the bushing to the housing until
(5)
2.3 Confirm after installation correct depth by using Bush Driving Tool.
Confirm the alignment of oil hole of the
housing and the bush, also check inner
diameter is within tolerance.
Crankshaft journal
O.D. finished size (o)
42.964-42.975mm
(1.6915-1.6919")
42.714-42.725mm
(1.6817-1.6821")
42.464-42.475mm
(1.6718-1.6722")
I
Crankshaft
9mm ( 1 3 . 5 m m
8mm-.t..- 13mm
Cylinder I
block i > Front side
PB129
Inspection
A. Crankshaft deflection
Support the crankshaft with V-block. Position a
dial gauge on the crankshaft centre journal, and
turn the crankshaft gradually by one full turn.
If the gauge reading is more than allowable
limit, correction or replacement of the crankshaft
is needed.
Standard deflection
0.03mm or less (.
0011")
Perama M25/M30 103-
09/10 103-06
A l i g n
Allowable limit
0.06mm
(.0023')
PB054