Tappets And Tappet Housings; Crankshaft - Kohler KDI 2504TM Workshop Manual

INFORMATION ABOUT OVERHAULING
Fig 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.
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.
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.
REF. DIMENSIONS (mm)
A 11.966 - 11.984
X 12.000 - 12.018
B 46.5 ± 0.2

8.4 Crankshaft

8.4.1 Dimensional check and overhauling
Wash the crankshaft thoroughly using suitable detergent.
CLEARANCE VALUE (mm)
0.060 - 0.105
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Fig 8.7
Fig 8.8
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