Westerbeke WPDS-20 Technical Manual page 101

V2
WESTERBEKE
MARINE ENGINE PRODuCTS
SERVICE BULLETIN #16
SUB~ECT:
Reduction Gear Ratio Identification
MODELS: Westerbeke-Paragon Model SA
To identify the reduction gear ratio on SA trans-
missions, look for digits marked on the back side
of the adapter plate.
see Drawing Below
Location of
Ratio Identification
These digits represent the following ratios:
DIGITS RATIO
R015
1. 5: 1
R020
2:1
R025 2.5:1
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