www.marinedieseldirect.com is part of the Torresen Sailing Site. Order parts from this catalog online, by phone 231-759-8596, fax 231-755-1522 or email


Caution
General Information
Preparations For Starting
Before Starting
Starting Engine
Engine Break-in and General Running
Stopping the Engine
Decompression Lever
Instrument Panel
Wiring Diagram
Preparing Engine for Storage
Preparing Engine for Spring Service
Fuel Injection Timing
Diesel Valve Timing
Adjusting Fuel Timing
Decompression Device Adjustment
Fuel System
Fuel Bleeding
Oil Filter Change
Sea Water Pump and Impeller Replacement
Model 15 Sea Water Circulation Diagram
Model 12, 18, 20, 25, 25XP, 30, 40 & 50 Water
Fresh Water Circulation Diagram
Hurth Transmission
Periodic Service Chart for Engine
Marine Engine Warranty - Limited

Engine Specifications and Images
(by engine model)

M2-12
M3-20
M4-30
M-25XP
M-35
M-30
M-40
M-50
M-12
M-15
M-18
M-20
M-25

 

 DECOMPRESSION LEVER:
A decompression lever fitted to the engine enables the user to start the engine easier when it is extremely cold, when the battery is low or when bleeding the fuel system. There is no decompression lever on Models 12, M2-12, M3-20, M4-30 and M-35.

CAUTION THE DECOMPRESSION LEVER MUST NOT BE USED TO STOP THE ENGINE EXCEPT IN EMERGENCY SITUATIONS SUCH AS RUN AWAY ENGINE OR THROTTLE DAMAGE, AS SERIOUS DAMAGE CAN BE DONE TO THE EXHAUST VALVES.

When the battery is weak or starting in extremely cold weather:
(In most cases decompression is not necessary.)

Models with Glow and Start Buttons and Decompression:

1. Pull decompression lever to release position.

2. Turn ignition switch to ON position.

3. Hold Glow Plug Button in for 30 to 60 seconds then press Start Button to crank engine (Models after early 1983).

4. After 3 to 5 seconds, when the engine has gained momentum, return decompression lever to its original position. Engine should now start.

Models With Start On Key Switch:

1. Pull decompression lever to release position.

2. Turn key to ON position.

3. Energize glow plugs for 30 to 60 seconds.

4. Turn key to start position to crank engine.

5. After 3 to 5 seconds, when the engine has gained momentum, return decompression lever to its original position. Engine should now start.

For more information about this page contact engineparts@torresen.com This page and the associated Westerbeke® Marine Diesel Engine Pages, Marine DieselDirect and TorresenSailing Pages are independent dealer pages provided by Torresen Marine, Inc. as a service to Great Lake Sailors. 

The information contained in these pages are strictly for informational purposes.  It is always advised that you consult with qualified and authorized diesel sales and service centers and official manufacturer publications and service bulletins on issues dealing with the repair, maintenance and operation of your marine engine.

These pages © 2000 Torresen Marine, Inc. All Rights Reserved. Unauthorized duplication and or publication in hardcopy or digital format is strictly prohibited without prior written consent.

Torresen Marine, Inc. 3126 Lake Shore Drive, Muskegon, Michigan 49441 is an authorized independent Westerbeke / Universal dealer and service center and is not part of Westerbeke Corporation.