Vetus M2.13S Compact Marine Saildrive Diesel Engine

Description

Experience minimal hydrodynamic drag and smooth auxiliary thrust with the Vetus M2.13S Saildrive Marine Diesel Engine. This 2-Cylinder 0.6L package delivers 11.8BHP continuous power at 3,200 RPM for pocket cruising sailboats. Vessel owners must follow strict saildrive diaphragm replacement intervals every seven years and monitor leg raw water ingestion ports against marine growth fouling.

Engine architecture combines an ASTM gray iron monobloc with parent bores and a rigid overhead-valve cylinder head. The electrical system utilizes a 12V negative ground arrangement with a 1.2 kW electric starter and a 75A alternator. Engine core dry mass spans 172 lbs without the lower drive leg. The engine mounting stance requires 19.1in length, 18.1in width, and 21.3in height, serviced by a 0.69 US gal lube oil sump.

Key Features of Vetus M2.13S

Sailing yacht skippers buy Vetus M2.13S saildrive marine diesel engines to optimize auxiliary performance without traditional propeller shaft alignment issues. The saildrive lower unit configuration provides an ideal solution for sailing yacht auxiliary engine repower projects.

• SeaProp 60 saildrive leg eliminates shaft seal leaks and engine alignment headaches in shallow bilges.
• Acoustic composite engine cover suppresses high-frequency valve train noise in small sailboat quarters.
• Mechanical indirect fuel injection ensures dependable combustion under cold weather motoring conditions.
• Raw water ingestion through the saildrive leg supplies the internal tubular heat exchanger core.
• High-output 75A alternator recharges navigation battery banks during brief harbor motoring runs.
• Dedicated saildrive mounting flange isolates hull vibration through a reinforced foundation bed.
• Cast iron monobloc structure provides high torsional resistance under sustained sailing propulsion loads.

Saildrive Dynamometer Performance Bench Testing

Dynamometer trials confirm 11.8BHP continuous power and 21 ft-lbs of shaft torque at 3,200 RPM, peaking at 13.0BHP at 3,600 RPM. Raw seawater ingestion through the saildrive leg keeps tubular heat exchanger temperatures stabilized at 178°F under continuous full-load motoring. Exhaust pyrometer temperatures remain under 880°F upstream of the water-injected exhaust mixer. Main journal oil pressure registers 45 PSI at cruise speed, while crankshaft journal runout measures under 0.0004in TIR across all bearing contact surfaces.

Field Usability Protocols Installation Guidelines

Single-lever sail control cables require 3 lbs of smooth mechanical effort to modulate the fuel injection rack. This saildrive diesel is not engineered for heavy displacement commercial tugs, motor barges, or planing fishing hulls. Never choose this sailing yacht auxiliary engine repower for vessels lacking a reinforced GRP saildrive foundation bed or hulls requiring conventional straight shaft lines.

• Change engine lube oil and replace spin-on filters every 150 operating hours.
• Inspect saildrive leg oil levels and change sacrificial zinc anodes every 12 months.
• Check mechanical overhead valve lash clearances and reset to 0.010in every 500 operating hours.

Factory Warranty Marine Crate Manifest

Vetus covers this saildrive package with a 5-Year leisure and 3-Year commercial marine manufacturer warranty. The shipment crate contains the bobtail engine core, SeaProp 60 saildrive lower unit, mounting bed frame, 12V 1.2 kW starter, 75A alternator, wiring harness, instrument display panel, and factory maintenance documentation.