Inspection - Volvo Penta D65A MS Workshop Manual

Group 22 Lubrication System
140
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Inspection

Measuring gear backlash
If the backlash exceeds the service limit, replace the
gears.
Drive gear and driven gear backlash, mm [in.]
Standard Clearance .. 0.10–0.20 [0.039–0.0079]
Service Limit ............. 0.4 [0.0157]
Measuring gear clearance
Use feeler gauges to measure the clearance. If the
clearance exceeds the service limit, replace the gears
or case, whichever is badly worn.
Drive gear and driven gear clearance, mm [in.]
Nominal Value ........... Ø60 [2.36]
Standard Clearance .. 0.100–0.148 [0.00394–0.00583]
Service Limit
Tip clearance: ........... 0.35 [0.0138]
Measuring pump gear end clearance
Use a dial gauge to measure thr clearance. If the
clearance exceeds the service limit, replace the gears
or case, whichever is badly worn.
Pump gear end clearance, mm [in.]
Nominal Value ........... 72.5 [2.854]
Standard Clearance .. 0.040–0.116 [0.00157–0.00457]
Service Limit ............. 0.21 [0.0083]
NOTE! Remove the cover mounting packing (0.04
mm [0.0016 in.] thick) when measuring.