Volvo Penta D1-30 Inboard Diesel MS15L Gearbox Package

Description

Power traditional straight-shaft cruising hulls through high-resistance tides with the Volvo Penta D1-30 MS15L Marine Engine. This 3-Cylinder 1.1L mechanical package generates 26.0BHP continuous output at 3,000 RPM matched to an inline mechanical gearbox. Operators must check transmission shift linkage throw during commissioning and maintain seasonal raw water impeller replacement schedules.

The structural foundation combines an ASTM gray cast iron monobloc with integrated parent bores and an overhead-valve cylinder head. Electrical architecture features a 12V negative ground system powered by a 1.1 kW starter motor and a 115A marine alternator with battery sensor regulation. Total package dry weight measures 318 lbs with the transmission. The complete package envelope occupies 29.8in of length, 19.4in of width, and 21.8in of height, serviced by a 0.92 US gal oil pan.

Key Features of Volvo Penta D1-30

Cruising monohull skippers buy Volvo Penta D1-30 MS15L marine engines to secure dependable straight-shaft auxiliary propulsion. The factory package speeds up sailing yacht auxiliary engine repower conversions by integrating an aligned mechanical transmission to the bellhousing.

• MS15L mechanical transmission provides inline straight-shaft output for conventional shaft line layouts.
• Cam-driven in-line injection pumps supply precise mechanical fuel metering across all operating speeds.
• Naturally aspirated 1.1L displacement produces 26.0BHP continuous power with low rotational vibration.
• Sound-damped air intake silencer traps intake pulsation noise inside small boat living quarters.
• High-capacity 115A marine alternator restores auxiliary battery banks during short harbor motoring runs.
• Tubular heat exchanger maintains closed-circuit engine coolant temperature in harsh saltwater environments.
• Neoprene seawater pump impeller circulates cooling water into the water-injected exhaust mixer elbow.

Dynamometer Testing Bench Load Ratings

Dynamometer load verification proves 26.0BHP continuous power and 46 ft-lbs of shaft torque at 3,000 RPM, peaking at 27.3BHP at 3,200 RPM. Exhaust pyrometer temperatures hold under 910°F ahead of the water-injected exhaust mixer elbow. The closed-circuit freshwater loop stabilizes at 180°F through the tubular heat exchanger under continuous full-load testing. Main bearing oil pressure registers 50 PSI at cruising RPM, while crankshaft journal concentricity checks confirm runout below 0.0004in TIR across all bearing contact surfaces.

Field Operation Controls Installation Boundaries

Mechanical control cables require 3 lbs of linear force to advance the internal fuel rack across the governor band. This straight-shaft propulsion package is not designed for fast planing hulls, commercial harbor tugs, or vessels lacking raw water strainers. Never select this sailing yacht auxiliary engine repower for displacement hulls exceeding 36ft or craft unable to maintain adequate engine compartment ventilation.

• Drain engine lube oil and replace spin-on oil filters every 150 operating hours.
• Inspect MS15L transmission fluid level and replace zinc anodes every 12 months.
• Measure and adjust mechanical overhead valve clearances to 0.008in cold every 500 operating hours.

Factory Warranty Marine Crate Inclusions

Volvo Penta covers this complete transmission package with a 2-Year limited warranty plus additional 3-Year major component protection. The export transport crate contains the diesel engine, MS15L gearbox, 12V 1.1 kW starter, 115A alternator, four flexible engine mounts, wiring harness, instrument display panel, and operator maintenance manuals.