Kohler KDI 1903 TCR Workshop Manual

181
EN
8.6.5 Valve guides replacement
The intake and exhaust guides are both made out of grey iron
with pearlitic phosphoric matrix and they have the same
dimensions.
The guides are press-fit assembled; assembly is possible by
cooling the guides with the aid of liquid nitrogen.
Before assembling a new guide, measure value L and M
,calculate the press-fit value, which must observe the values in
Tab. 8.11 .
Observe values G from surface F when assembling guides H
(Tab. 8.10 - Fig. 8.23) .
Important

The guides must be worked for value E (Tab. 8.10 -
Fig.8.23) after driving. Contact a rectification workshop
for such operations.
Tab 8.11 valve guides - housing dimensions
REF.
DIMENSIONS (mm)
PRESS-FIT VALUE (mm)
L
10.000 - 10.015
0.030 - 0.054
M
10.045 - 10.054
Fig 8.24
8.6.6 Rocker arm check
Measure values W1 in correspondence with holes M located on
rocker arm gudgeon L (seen from B in Fig. 8.25 ).
Measure values W2 (Fig. 8.27).
Based on the values measured, calculate the clearance
between W1 and W2 , which is to observe the values in Tab.
8.12.
Check that all oil pipes N and M are free from impurities or
obstructions.
Tab 8. 12
REF.
DIMENSIONS (mm)
CLEARANCE VALUE (mm)
W1
19.985 - 20.005
0.035 - 0.076
W2
20.040 - 20.061

Kohler KDI 1903 TCR Specifications

General

Brand	Kohler
Model	KDI 1903 TCR
Category	Engine
Language	English