Camshaft; Injection Cam Dimensions (Fig. 28); Oil Seal Rings; Tappet Checking - Kohler KD 477-2 Workshop Manual

X
CHECKS AND OVERHAUL
exhaust
27
28
29
- 24 -

Camshaft

Check cams and support pins for wear or scores.
Check amount of wear by measuring points A and B shown in fig. 27
and 28 and comparing to the figures of the tables hereunder:
inlet
Distribution cam dimensions (fig. 27).
Engine
KD477-2

Injection cam dimensions (fig. 28)

Engine
KD477-2
The coupling clearance between pins and respective housings should
be:

Oil seal rings

Make sure the oil seals have not hardened round the internal contact
edge with the crankshaft and that they do not show signs of cracks or
wear. If they do, replace them with new ones of the same size.

Tappet checking

Make sure the tappet surfaces are not worn, lined or present signs of
seizure. If so, replace.
Tappet and seat check in mm (fig. 29).
Measurement
Tappet
Tappet seat
KD 477-2 Workshop Manual_cod. ED0053029370_1° ed_ rev. 00
Measure-
ment
A-B
Measure-
ment
A
Fitting mm
0,015 ÷ 0,048
Renew the camshaft if the cams or journals show wear in
excess of 0.1mm.
Then re-fitting the oil seal, use protective cone cod.
00365R0260. Fit said cone over the ends of the crankshaft
to avoid damage to the ring itself.
Fitting mm
11,98 ÷ 11,99
12,00 ÷ 12,018
Fitting Max. wear
mm mm
29,95 ÷ 30,00 29,70
Fitting Max. wear
mm mm
28,39÷ 28,43 28,30
Max. wear mm
0,100
Max .assy.clearance mm
0,10