Inspection And Repair - Volvo Penta D65A MS Workshop Manual

Group 21 Engine Body
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Inspection and Repair

Rocker Bushings and Rockershaft
1. Measuring rocker bushing inside diameter and
rockershaft diameter. If the measurement ex-
ceeds the service limit, replace the bushing or
shaft.
Rocker bushing inside diameter, mm [in]
Normal Value ............ Ø36 [1.42]
Assembly Standard ... 36.000–36.040 [1.41732–1.41889]
Service limit .............. 36.090 [1.42086]
Rockershaft diameter, mm [in]
Normal Value ............ Ø36 [1.42]
Assembly Standard ... 35.966–35.991 [1.41598–1.41697]
Service limit .............. 35.940 [1.41496]
Replacing rocker bushings
Use the Rocker bushing tool to remove the rocker
bushings for replacement.
NOTE! Press a new bushing into the rocker from the
chamfered side(1) of the bore.
NOTE! Align the oil holes in the bushing and rocker.
NOTE! Check bushing joint mark(2)