Volvo Penta Tamd 41

The Volvo Penta TAMD41 isa series of reliable, economic, 6-cylinder, 4-stroke, direct-injected, turbocharged, and aftercooled marine diesel engines developed for planing craft. Introduced in the 1980s, these engines are known for their compact size, making them suitable for twin installations, and their fuel efficiency, which stems from direct injection, turbocharging, and the aftercooler. They were available in various power outputs, such as the 200 hp TAMD41B and TAMD41M models, and are a popular choice for marine propulsion.

Key Features

Engine Type:

6-cylinder, 4-stroke, direct-injected marine diesel engine.
Turbocharging:

Features a turbocharger to increase power and improve efficiency by forcing more air into the cylinders.
Aftercooler:

A component that cools the compressed intake air, increasing its density and oxygen content for better fuel combustion and efficiency.
Direct Injection (DI):

Results in lower thermal load, reduced fuel consumption, and a longer service life for the engine compared to older indirect injection designs.
Compact Design:

Its small dimensions make it an excellent choice for fitting two engines in a single boat (twin installation).
Fuel Economy:

Developed to be an economic and reliable engine with a high power-to-fuel consumption ratio.
Application:

Primarily designed for planing craft, offering considerable power for efficient operation.
Production Period:

Models like the TAMD41A and TAMD41B were produced roughly from 1986 to 1993.

The Volvo Penta TAMD41 is a 6-cylinder, 4-stroke, direct-injected, turbocharged marine diesel engine with an aftercooler that typically produces around 200 horsepower. Key features include its compact design suitable for twin installations, an 8° down angle and drop-center configuration for efficient placement, oil-cooled pistons, and a fresh water-cooled turbocharger and exhaust manifold. The engine uses an exhaust-driven turbocharger and an aftercooler to increase oxygen content for more efficient combustion and cleaner exhaust.

Key Specifications

Type: 6-cylinder, 4-stroke marine diesel engine
Induction: Turbocharged with an aftercooler
Fuel System: Direct injection
Horsepower: Up to 200 hp (147 kW)
Engine Configuration: Compact dimensions, 8° down angle, drop-center
Construction: Cast iron cylinder block and cylinder head for corrosion resistance
Cooling: Aftercooler, fresh water-cooled turbocharger and exhaust manifolds
Pistons: Oil-cooled
Gearing: Features a hydraulically operated reverse gear

Features and Benefits

Efficiency:

Direct injection and turbocharging with aftercooler lead to high efficiency and reduced fuel consumption.
Performance:

Turbocharging provides more air for fuel injection, resulting in increased power and efficiency.
Reliability:

Precision machined cast iron components, replaceable wet cylinder liners, and a gear-driven seawater pump enhance durability.
Compact Design:

The engine’s dimensions and angled shaft make it ideal for twin installations and tight spaces.
Comfort:

A hydraulically shifted reverse gear provides quiet running and smooth operation.
Environmental Impact:

Turbocharging and aftercooling contribute to cleaner exhaust emissions.

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