The SABB 2H (with a controllable pitch propeller) , 2HG (with reverse gear and a solid propeller) and 2HSP (with a fully feathering propeller) marine diesel engines are 2 cylinder, water-cooled, 4-stroke diesel engines. The engine specifications are as below.
| Parameter | Value |
|---|---|
| Cylinder Bore / Stroke | 90mm x 90mm 3.54" x 3.54" |
| Capacity | 1140 cm³ 69.6 cu. in. |
| Compression Ratio | 22:1 |
| Compression Pressure | 30 kp / cm² 426.7 psi |
| Cont. Rating (@2000 rpm) | 16HP 11.7 kW |
| Cont. Rating (@2250 rpm) | 18HP 13.2 kW |
| Fuel Consumption (18HP) | 4.7 litres/hour |
| Reduction Ratio | 2:1 |
| Rotation | Left |
| Weight (excluding stern gear) | 190 kg 419 lbs |
| Valve Stem Clearance | 0.3 mm 0.012 in |
| Injection timing | 15 degrees BTDC |
| Exh. valve opens | 50 degrees before BDC |
| Exh. valve closes | 15 degrees after TDC |
| Inj. valve opens | 15 degrees after TDC |
| Inj. valve closes | 50 degrees before BDC |
| Crankcase oil capacity | 4.5 litres |
| Gearbox oil capacity (2H, 2HSP and 2HG (reverse gearbox)) | 0.5 litres |
| Winter Oil | SAE10 |
| Summer Oil & Gearbox Oil | SAE20 |
Why is the SABB 2HG Marine Diesel Engine so Heavy?
The SABB is, for it’s power output, a particularly heavy engine. With a dry weight of 190 kg (420 lbs) it is significantly heavier that popular equivalents such as the Yanmar 2GM20 [106 kg / 234 lbs] or the Volvo Penta 2002 [139 kg / 306 lbs]. Not only is the SABB an older design, but it is rated to run at much slower revs than the Yanmar and VP models and so needs a heavier flywheel.
Components of the SABB 2H / 2HG / 2HSP
- Clutch Lever
- Pitch Control Lever
- Governor (speed) Control Lever
- Dipstick
- Lub. Oil Pressure Gauge
- Fuel Filter
- Inlet Muffler
- Rocker Cover
- Injection pipe
- Alternator
- V-belt
- Clutch Housing Cover
- Adj. Screw for max. prop pitch
- Injection Pump
- Governor cover
- Crankcase cover
- Self-starter
- Foundation Iron
- Starting cigarette socket
- Decompessor
- Exhaust Silencer
- Exhaust Flange
- Wet Exhaust Pipe
- Fuel leak-off pipe
- Starting Bracket
- Starting handle
- Prop Pitch hand screw
- V-belt (bilge pump)
- Bilge Pump
- Drain cock (bilge pump)
- Lub. oil filter
- Fuel lift pump
- Water Valve Housing
- Drain cocks (engine & water pump)
- Clutch housing
- Grease nipples
Video: Click to watch a video of a SABB 2H running
SABB Diesel Starting Cigarettes
An unusual feature of the SABB 2H engines is the “starting cigarette” which helped when hand-cranking the engine in low temperatures. These cigarettes were a non-electric predecessor of the 12v glowplug found in many marine diesel engines today. The “cigarettes” ignited by a chemical reaction when thay came in contact with diesel fuel. The cigarettes were made from a solution of Potassium Nitrate (Saltpeter) dried onto paper. Be warned though – Saltpeter is an ingredient of fireworks and should not be played with.