Lombardini LDW1003SD Cruiser Marine Saildrive Diesel Package

Description

Seeking a compact saildrive system that minimizes stern drag on cruising catamarans? The Lombardini LDW1003SD Marine Saildrive Package generates 27BHP from an Inline-3 1.0L naturally aspirated architecture at 3,600 RPM. Overhead unit pump injectors require strict fuel water separation to prevent pump plunger scuffing. Dual hull diaphragm beds demand scheduled torque checks to prevent hull seal leaks.

Monobloc cast iron provides structural rigidity across parent-bore cylinder liners, while an aluminum cylinder head minimizes machinery weight in catamaran hulls. Overhead camshaft actuation operates internal FOCS unit pump injectors without exterior high-pressure injection pipes. A 12V negative ground system includes a 1.2 kW starter motor and 40A marine alternator. Dry engine mass measures 187 lbs within a base envelope measuring 22.1in long, 18.5in wide, and 20.8in high.

Key Features of Lombardini LDW1003SD

Commercial charter fleets buy Lombardini LDW1003SD saildrive packages to repower multihull charter yachts and daysailers. This drive platform carries out inland waterway narrowboat propulsion engine replacements and sailing cat repowers where low mechanical mass protects vessel balance.

• FOCS unit pump injectors meter diesel direct inside cylinder heads to eliminate external pipe leaks.
• Naturally aspirated air induction keeps machinery box heat loads minimal during prolonged transits.
• SeaProp 60 saildrive legs enhance hull speed by eliminating turbulent shaft struts and brackets.
• Cast iron engine blocks resist cylinder wall distortion under continuous operating load.
• Dedicated saildrive intake slots feed seawater through tubular heat exchangers without external scoops.
• Continuous P1 rating supplies 24BHP at 3,300 RPM for efficient ocean passages.
• Intermittent P3 rating yields 27BHP at 3,600 RPM for confident marina docking.

Dynamometer Bench Test Output Ratings

Factory dynamometer testing confirms continuous output of 24BHP at 3,300 RPM and intermittent peak power of 27BHP at 3,600 RPM. Naturally aspirated exhaust gas temperatures reach 1,120°F at full rated RPM before raw seawater injection. Coolant temperatures stabilize at 180°F through copper-nickel heat exchanger tubes. Crankcase lube oil pressure maintains 48 PSI at continuous cruise speed. Intermediate saildrive housing flange runout stays within 0.0003in TIR under static operating shaft tilt angles up to 15°.

Field Operation Multihull Service Guidelines

Mechanical throttle and gear selectors shift with low friction requiring under 3 lbs of lever pull. Do not install this 27BHP saildrive unit in heavy displacement commercial work barges or vessels requiring high continuous bollard pull capacity.

• Change engine crankcase oil and replace spin-on oil filter cartridges every 250 operating hours.
• Check saildrive gear lube oil level and inspect rubber hull diaphragms every 100 operating hours.
• Replace primary fuel filter elements and saildrive zinc anodes every 500 operating hours.

Commercial Warranty Factory Shipping Crate

Lombardini Kohler backs this saildrive package with a 2-Year limited marine warranty. Factory wooden crates contain the 1.0L engine core, SeaProp 60 saildrive leg, hull mounting foundation bed, sealing gasket kit, 12V 40A alternator, instrument panel with tachometer, wiring harness, and factory operational manuals.