Download Westerbeke 20B TWO/30B THREE Technical data

Timing Gears' Installation
1. Press-fit the crankshaft gear onto the shaft.
2. Press-fit the valve camshaft gear and injection
pump camshaft gear onto the respective shafts.
3. Install the gears in the following sequence.
a. Turn the crankshaft to set the No. 1 cylinder to
top dead center on compression stroke.
Idler Gear
(Note timing marks1&2)
b. Install the valve camshaft and injection pump
camshaft.
c. Install the idle gear so that timing marks on it are
in alignment with marks on the other gears.
d. Confirm that timing gears are in alignment with
each other.
Westerbeke Engines
40