Volvo Penta D2-50 Marine Saildrive 130S Package

Description

Drive offshore hulls with the Volvo Penta D2-50 Saildrive Package across grueling blue water passages. This atmospheric 4-Cylinder 2.2L marine diesel pushes 51BHP at 3,000 RPM through dedicated 130S lower gear legs. Mechanical unit pumps feed parent-bore cylinders without sensitive electronic sensors. The synthetic rubber hull diaphragm requires strict visual inspection and replacement every 7-Year haul-out cycle.

ASTM gray iron forms the parent-bore cylinder block and rigid monobloc overhead-valve cylinder head. The marine electrical system features a 12V isolated negative ground circuit, powered by a 12V 2.0 kW electric starter motor alongside a high-output 12V 115A alternator with built-in battery charging sensor. Dry weight measures 496 lbs without gear fluid. The mounting stance spans 29.9in length, 21.4in width, and 24.0in height, holding 1.72 US gal engine lube oil capacity.

Key Features of Volvo Penta D2-50 130S

Offshore voyagers buy Volvo Penta D2-50 saildrive package units to modernize aging cruising sailboat engine bays with quiet propulsive thrust. This marine package fits 36ft to 43ft cruising monohulls and charter catamarans requiring clean mechanical injection.

• Dedicated 130S lower unit transmits 47BHP continuous output through reduction gear sets to high-thrust folding propellers.
• Cam-driven inline unit injection pumps meter low-sulfur diesel fuel into pre-combustion chambers at elevated injection pressures.
• Tubular heat exchanger closed circuit drops thermal levels via raw seawater intake routed through the lower drive leg.
• Cast iron monobloc architecture eliminates wet liner seals and prevents crankcase bore distortion under load.
• Flexible rubber engine mounts isolate rotational vibration from structural hull stringers and deck bulkheads.
• Sound-attenuated intake air silencer dampens induction resonance at sustained 2,800 RPM cruising speeds.
• EPA Tier 3 certification satisfies strict marine harbor environmental emission mandates.

Dynamometer Output Thermal Bench Data

Dynamometer runs confirm 47BHP continuous shaft output at 2,800 RPM and 51BHP peak rating at 3,000 RPM. Crankshaft journal runout remains inside 0.0006in TIR under sustained full-rack brake testing. Lube oil pressure stabilizes at 58 PSI during maximum thermal loads, while the freshwater heat exchanger loop caps operating temperatures at 185°F. The engine block handles static inclination tilt angles up to 30° without starvation of sump lubricants. Low-sulfur diesel fuel atomizes through mechanical injector nozzles at 140 bar baseline pressure.

Field Operation Maintenance Guidelines

Control cables require 12 lbs mechanical push-pull force for gear engagement and throttle sweep. Production sailing catamarans benefit from this package, but marine mechanics must not specify this saildrive configuration for commercial tugs, heavy steel workboats, or river barges that strike submerged ground logs.

• Drain engine crankcase lube oil and replace spin-on filter elements every 200 operating hours.
• Inspect seawater pump flexible neoprene impellers and clean exchanger tube bundles every 500 run hours.
• Examine drive leg hull sealing rubber diaphragm membranes every 12 months for physical stress cracks.

Factory Warranty Crate Manifest

Factory coverage provides a standard 2-Year limited warranty backed by an additional 3-Year major casting component protection plan. The unboxing crate contains the factory-tested engine core, 130S saildrive lower unit, hull mounting bed frame, 12V 115A alternator, 12V starter, instrument display panel, interconnecting wiring loom, and documentation manuals.