JH3/4(T) Series (Shaftdrive)

JH3/4(T) Series (Shaftdrive)

Introduction

JH3/JH4 Series

As used on Tideways

Yanmar JH3/JH4 Turbo Series Marine Diesel Engines
(75 - 125hp)

Compact mid-range marine power plants

The new 4JH4-TE (turbo), the 4JH4-HTE (intercooler-turbo) and the 4JH3-DTE (hi-power intercooler turbo), create a family of three lightweight, user-friendly, clean, thrifty and reliable marine diesels.

Lightweight

Compact design iron block and head feature close space cylinders to save space and weight. Extensive use of aluminium alloys in oil pan, covers, and in many parts make for good weight savings.

User friendly

Sophisticated engine mounts, a range of velvet smooth transmissions, micron-precision fuel system components, close attention to bearing tolerances and accurate balance of moving parts make for low-noise, low vibration, low emission, low downtime and easy-to-live-with engines.

Clean

Inlet swirl design improves fuel-air mix, extra high pressure fuel injection system with micron-precision injectors and close attention to coolant flow minimizes hot and cool spots - these are just some of the ways Yanmar improves combustion efficiency.

Thrifty

Diesels are synonymous with fuel economy. But being a Yanmar also means that long years of experience in building some of the world's most efficient diesel, also the extensive input from our large and ultra-modern research facilities have been incorporated into every new Yanmar engine.

Reliable

Long, trouble-free engine life is a common reason for choosing Yanmar. Worldwide parts backup and quick response times make for minimum downtime. These engines are again and again the favoured choice of bluewater yachtsman and boat owners the world over.

Yanmar JH4

Specifications

		4JH4TE			4JH4-HTE			4JH3-DTE
Class		4JH4-TE	4JH4-TBE	4JH4-THE	4JH4-HTE	4JH4-HTBE	4JH4-HTHE	4JH3-DTHE
Configuration		4-stroke, vertical, water cooled - direct injection
Cylinders		4 in-line			4 in-line			4 in-line
Maximum Output		75mhp @ 3200rpm			110mhp @ 3200rpm			125mhp @ 3800rpm
Cooling System		Freshwater cooling/heat exchange by centrifugal freshwater pump and rubber impeller sea water pump
Bore x Stroke		84 x 90 mm			84 x 90 mm			84 x 90mm
Displacement		1.995 litres			1.995 litres			1.995 litres
Aspiration		Turbocharged			Turbocharged with intercooler
Dry Weight		234 kg	237 kg	237 kg	245 kg	247 kg	247 kg	259 kg
Reduction (FWD) & Model of Gear		ZF30M 2.15/2.70	KM4A2M 1.47/2.14/ 2.63	ZF25A 1.93/2.48	ZF30M 2.15/2.70	KM4A2 1.47/2.14/ 2.63	ZF25A 1.93/2.48
Direction of Rotation	C/S		CCW viewed from stern
	P/S	CW	Bi Rotation	Bi Rotation	CW	Bi Rotation	Bi Rotation

Accessories

	Component	4JH4-TE 4JH4-HTW 4JH3-DTE
Installation	Flexible Engine Mounts x 4	STD
	Propeller shaft half coupling (slit type)	Optional
	Propeller shaft half coupling (straight rough bore)	STD
	Slow speed valve A2-type for KMH4A	Optional
	Neutral safety switch for KMH4A	Optional
	Neutral safety switch for KM4A	Optional
Cooling	Exhaust water mixing elbow, L-type	STD
	Exhaust water mixing elbow, U-type ø 76 (3")	Optional
	Kingston cock	Optional
	Sea water strainer	Optional
Lubrication	Lube oil evacuation pump - rotary type	Optional
Lubrication	Lube oil dipstick opposite side of engine	Optional
Electrical and Instrumentation	Alternator, 12V-80A	STD
	Electric type bilge pump, 12V	Optional
	New B-type instrument panel (VDO type) JH3/4 series	Optional
	New C-type instrument panel (VDO type) JH3/4 series	STD
	Meter sensor assembly for dual instrument panel (New C+C type)	Optional
	Connect wire harness for dual instrument panel	Optional
	Extension wire harness - 4m or 6m	6m STD
	Starter relay (for wire harness longer than 6m)	Optional
	Battery switch	Optional
Control	Push-pull type remote control cable 2 pcs/unit (MORSE:33C) 4m	Optional
	Push-pull type remote control cable 2 pcs/unit (MORSE:33C) 7m	Optional
	Side-mount type single control head (MORSE:MV)	Optional
	Top-mount type single control head (MORSE:MT3)	Optional
Others	Crankshaft V-pulley (Material: FC) for front PTO	Optional