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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
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UNIVERSAL MODEL M4-30 SPECIFICATIONS
Pictorial views of this engine at the bottom of page. |
| Horsepower | 25 @ 3600 |
| No. of Cylinders | 4 |
| Bore x Stroke | 2.60 x 2.45 |
| Cubic Inch | 51.9 |
| Maximum RPM | 3600 |
| Cruising Range (Approx.) | 2600 - 3300 |
| Compression Ratio | 23:1 |
Electrical Equip.12 Volt - 51 Amp W/Glow Plugs
| Lubrication (Eng. Approx. Ots.) | 4 |
(SAE) 30 HD. (CD) or 10W40) - CAUTION:FILL ONLY TO FULL MARK ON DIPSTICK
Lubrication (Trans.)FILL TO FULL RING ON DIPSTICK
| (Type Aft. “A” or GM-DEXRON® - II Do not mix different oils) |
| Transmission Reduction | 2:1 |
| Coolant FWC (50150 Solution Approx.) | 3½ Quarts |
| Exhaust Flange | 1 ¼” N.P.T. |
| Fuel Type | #2 Diesel |
| Fuel Filter | P/N 298854 |
| Oil Filter | P/N 300209 |
| Engine Operating Temp. Degrees F. | 165° to 195° |
| Propeller Rotation | Right Hand |
| Weight (lbs.) | 270 |
| Injection Nozzles | P/N 302735 |
| Engine is governor controlled to prevent overspeed. It is recommended to carry the following extra parts should the need arise: V-Belt, Sea Water Pump Impeller, Fuel & Lube Oil Filters, 1 Ot. of Trans. Oil, 2 Ots. Lube Oil, 1 Gal. 50/50 Coolant.
All pictorial views and specifications subject to change without notice. |
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