This engine is suitable for boats with displacement of 17-22 tons with a water line legth (LWL) of 46-50 feet.

Horse Power

Cylinders

Bore

Stroke

Cubic Capacity

Weight

Transmission

Alternator

85 @ 3000 rpm

4

94mm/3.7"

120mm/4.72"

3331cc /203.3 ci

359kg / 790 lbs

TM345

70 Amp

beta 85

beta 85

The Beta 85 is a 4 cylinder diesel propulsion engine developing 85 bhp at 3,000 rpm with a swept volume of 3331 cc.

The Beta 85 Diesel Propulsion Engine

Technical Specifications

Standard Options

70 Amp alternator with Serpentine Belt drive
C Instrument Panel
Flexible mounts
Heat exchanger cooling
High Inertia Flywheel
High Rise Exhaust Elbow for 3.5″ hose
Intake silencer / Air filter
Oil change pump (fitted)
Stop solenoid

Transmission Options

Transmission : standard - TM345

Bobtail : No gearbox but with drive plate or with Velvet Drive adation kit

PRM 260 : (Hydraulic) 1.96:1 / 2.94:1

PRM 500 : (Hydraulic) 1.94:1 / 2.5:1 / 2.9:1

ZF 45 : 12 degree V-drive (hydraulic) 1.56:1 / 1.99:1 / 2.47:1

ZF63IV : 12 degree V-drive (hydraulic) 1.56:1 / 1.99:1 / 2.47:1

TM 345 : 2:1 / 2.47:1

TM 345 A : 8 degree Down Angle 2.03:1 / 2.43:1

TM 93 : 2.09:1 / 2.4:1 / 2.77:1

TM 93 A : 8 degree Down Angle 2:091 / 2.4:1

 

Upgrade Options

Alternator 120 amp with Serpentine Belt Drive System
Alternator 175 amp with Serpentine Belt Drive System in standard position (internally regulated)
Alternator 120 amp, Balmar, with Serpentine Belt Drive System
2nd Alternator 175 Amp (12v), engine mounted
Flexible coupling
Flybridge Panel
Hot water Fittings
Insulated Ground Electrical with 100 amp Alt
Insulated Ground Electrical with 70 amp Alt
Keel cooling
Long term storage (test run on Ensis oil and Calibration fluid)
Mount and pulley for Sea Frost compressor
Panel – Type CW – Water Resistant Panel specs
Panel – Type D Digital Panel – Compatable NMEA 2000
Panel Extension harness with starter relay
Panel Recess with clear lid for C panel click here for recess dimensions
PTO Pulley (twin A sections)
Rear facing raw water pump
Remote Oil Filter
Shallow oil pan

Data Sheet

Downloads & Support

Schematics with PRM 260

Schematics with TM 345

Schematics with 72C

 

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