INFORMATION ABOUT OVERHAULING
8
103
EN
F
ig 8.4
8.3 Tappets and tappet housings
8.3.1 Tappets check
Use a surface plate and a dial gauge as shown in
Fig. 8.7
.
Check the perpendicularity of the plate
C
, making the tappet
D
rotate in the direction of the arrow.
The
MAX
value of wear allowed is
0.02 mm
.
W
ith a gauge, check the length of value
A and B (Tab. 8.4)
. The
MAX
value of wear allowed is
0.08 mm
.
8.3.2 Tappet housing check
U
se an internal dial gauge to measure the diameter of the tappet
housings
X
.
Use value of
A
detected
(Par. 8.3.1)
to calculate the clearance
value (
Tab. 8.4
).
If the clearance values are not observed, replace the worn
component.
Important
•
Tab. 8.4 details the dimensional values of the new
components only.
Tab. 8.4 T
appets and t
appet housing size.
0.060 - 0.105
Fig 8.8
8.4 Crankshaft
8.4.1 Dimensional check and overhauling
Wash the crankshaft thoroughly using suitable detergent.