CS36T Owner’s Manual
Page 12
5
POWER PLANT AND TRANSMISSION
5.1
Engine
A Westerbeke W30 or W33 with Paragon hydraulic gearbox close-coupled to a Walter RV1O V- drive
with 2:1 reduction ratio. For full details of the engine please refer to Westerbeke Technical manual sent
out with every CS 36. Read this manual carefully.
An air exhaust blower is fitted to exhaust hot air from the engine compartment. It starts and stops when
the key is turned to “on" from the "run" position. The air is exhausted via flexible trunking through a
vent on the after side of the cockpit coaming.
5.2
Exhaust System
The exhaust system on the CS 36 utilizes a "pot" type muffler. At engine running condition an auxiliary
water pump draws water through the intake port, circulates it through the heat exchanger and thence
into the muffler. The water mixes with the exhaust gases in the muffler and is discharged overboard
through the exhaust port at the aft port side of the hull.
NOTES RE: EXHAUST VENT:
To prevent water being sucked back into the engine when shut down, a vent
is fitted into the exhaust manifold elbow and piped to a 90° elbow fitting in the starboard topsides.
Under certain load conditions, cooling water will flow through the vent and be discharged overboard.
On a regular basis check that this is happening; no water indicates the pipe of fitting is blocked and
needs clearing.
The raw or saltwater in the heat exchanger lowers the temperature of the engine coolant circulated
through the engine block with the engine water pump.
This coolant consists of a 50% ethylene glycol and 50% freshwater solution and protects the internal
system down to -32°F (-35°C) This solution should be used at all times for engine corrosion protection
and should be checked for its strength before winter lay-up.
5.3
Transmission
All necessary data and information about the transmission are fully detailed in the engine manual. To
avoid damage to the gears and increase clutch life, the engine should always be at idle speed when
shifting into forward or reverse gear.
5.4
Propeller Shaft
The propeller shaft is supported at the inboard end by the shaft coupling and at the outboard end by a
P-Bracket containing a bearing for 1" diameter shaft. It is retained in the P-Bracket by two socket type
