Kohler KDI 1903M Workshop Manual

INFORMATION ABOUT OVERHAULING
8
101
EN
Important
•
The crankshaft and connecting rod must be
replaced every time they are assembled to prevent
seizure, as they are made of special lead-free
m
aterial.
•
The MAX allowed value of wear for A1 and A2 is
0.120 mm.
•
The MAX allowed value of wear for B1 and B2 is
0.120 mm.
•
To grind the crankshaft, a decrease in diameter of
t
he halfbearings and connecting rod is provided f
or
a
t 0.25 mm and 0.50 mm, to grind gudgeon pins
A1 and B1, measure the values of diameters A
2
an
d B2 by assembling the decreased half-
bearings, define the diameter to grind of pins A
1
an
d B1,
observing the clearance indicated in Tab. 8.5.
•
La Tab. 8.5 riporta i valori dimensionali solo per
i
c
omponenti nuovi.
Tab 8.5 Connecting rod and journal
diameter
REF.
DIMENSIONS
(mm)
CLEARANCE
VALUE (mm)
A
53.981 -
54.000
0.035 - 0.085
A1
54.035 -
54.066
B
63.981 -
64.000
0.035 - 0.102
B1
64.035 -
64.083
8.4.2 Checking the axial clearance of the crankshaft
P
erform the operations described in
Par. 9.3.5 and 9.3.6
.
Using a dial gauge, measure the axial shift of crankshaft
E
.
Axial shift must be a
MIN
of 0.18 mm and
MAX
0.38 mm..
If the values measured do not correspond, replace shoulder
rings
D
.
Fig 8.10
8.5 Connecting rod - piston assembly
Important
•
In case of replacement, the connecting rods and
pistons must always be replaced for all
cylinders.

Kohler KDI 1903M Specifications

General

Brand	Kohler
Model	KDI 1903M
Category	Engine
Language	English