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General| Engine Type | Diesel |
|---|---|
| Number of Cylinders | 4 |
| Power Output | 55 hp |
| Aspiration | Naturally aspirated |
| Alternator | 115 A |
| Fuel System | Direct injection |
| Bore x Stroke | 84 mm x 100 mm |
| Cooling System | Freshwater cooling with heat exchanger |
| Width | 523 mm |
| Displacement | 2.2 l (134 cu in) |
Explains symbols and priority of warning texts (WARNING, IMPORTANT, NOTE).
Engine off, no smoking, proper fuel use to prevent fire and explosion.
Avoid starting with fuel leaks or near explosive media.
Visual inspection of engine and compartment before/after operation.
Avoid sudden changes, check for people before engaging gear.
Covers general prep, stopping engine, lifting, fire hazards, battery, and start spray safety.
Safety for hot parts, chemicals, cooling, lubrication, fuel, and electrical systems.
Volvo Penta's environmental commitment and the engine running-in procedure.
Recommendations for fuel, oils, and the importance of original spare parts.
Specific maintenance, service, and modification rules for certified engines.
Overview of limited warranty based on the Warranty and Service Book.
Product designation, serial number, product number, certification number.
Product designation, serial number, product number, gear ratio.
Details on gauges, switches, warning lights, and ignition operation.
Key code security and key positions for starting the engine.
Explanation of warning lamps for engine conditions and optional functions.
Using the single lever for shifting and engine speed control.
Procedure to disengage shift for engine speed control only.
Adjusts lever stiffness for engine speed control.
Monitoring oil pressure, coolant temperature, and charging voltage.
Avoiding WOT for efficiency and comfort; cruising 500-1000 rpm lower.
Shifting between ahead and astern at idle speed.
Reduces boat speed steplessly up to 1200 rpm; avoid overheating.
Control lever position based on reverse gear and propeller type.
Procedures for stopping the engine and checks after stopping.
Preparing the engine for storage and protecting against freezing.
First Service Inspection must be done by authorized workshop.
Routine checks for engine, oil, coolant, fuel filter, belt, battery.
Cleaning folding propeller, checking S-drive rubber seal.
Oil changes, filter replacements, impeller checks, and cleaning.
Cleaning heat exchanger, replacing coolant, shaft seals.
Replacing S-drive rubber seal between drive and hull.
Visual inspection for leaks, loose parts, and general condition.
Checking belt tension, condition, and procedures for adjustment/replacement.
Procedure for cleaning the air filter element.
Adjusting idling speed and checking the D2-75 wastegate.
Checking oil level daily and topping up as needed.
Steps for draining oil, replacing filters, and refilling.
Importance of coolant, water quality, and protection against freezing.
Procedure for checking and refilling the coolant level.
Procedures for changing coolant and draining the system.
Flushing the heat exchanger to maintain cooling performance.
Checking and cleaning the seawater pump impeller, vacuum valve, and filter.
Flushing and treating the system for winter storage.
Procedures to drain the system to prevent freezing damage.
Procedure for bleeding air from the fuel system.
Steps for changing fuel filters and draining the pre-filter.
Safe operation of the main switch and electrical connections.
Locating the fuse holder and replacing blown fuses.
Safety during maintenance, connecting/disconnecting, and cleaning.
Checking and refilling battery electrolyte levels.
Procedure for checking the oil level in the drive or reverse gear.
Steps for draining and refilling the S drive oil.
Procedure for changing oil in the MS25 reverse gear.
Steps for changing oil and cleaning the filter in the HS25 reverse gear.
Checking anode condition and replacing them as needed.
Annual cleaning and lubrication of the folding propeller.
Vent and lubricate the propeller shaft seal; replacement intervals.
Checking the S-drive rubber seal for cracks and wear.
Procedures for inhibiting the engine for storage, in and out of water.
Table linking common engine problems to their potential causes.
Engine designation, cylinders, bore, stroke, displacement, power, speed, weight.
Oil details, coolant capacity, thermostat specifications.
System voltage, fuses, battery capacity, generator and starter output.
Details for MS25, MS25L, MS25A, HS25 models including ratios and oil.
Details for MS25S/SR and 150S/SR models including ratios and oil.
Fuel must meet EN 590, ASTM D 975, JIS KK 2204 standards.
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