94
A
Fig. 8.5
Fig. 8.6
B
C
D
D
X
Tab. 8.4
ED0053030410
INFORMATION ABOUT OVERHAULING
8.3 Tappets and tappet housings
8.3.1 Tappets check
Use a surface plate and a dial gauge as shown in Fig. 8.5.
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.
With 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
Use an internal dial gauge to measure the diameter of the
tappet housings X.
value of A detected (Par. 8.3.1) 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 new components
only.
Tappets and tappet housing dimensions.
REF. DIMENSIONS (mm)
CLEARANCE
VALUE (mm)
A 14.984 - 14.966
0.016 - 0.052
X 15.000 - 15.018
B 47.5 ...
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