JH Series (25 - 30mhp) Lifeboat Engines
 
 
Yanmar JH Series Marine Diesel Engine
Purpose Built for Life Boats
(25 - 30mhp)
 

Direct injection and turbo charger
Yanmar's advanced technologies have now produced an 82mm cylinder, direct injection engine. On top of that, fuel costs are hugely reduced by the high combustion efficiency. Save 15 - 20% more fuel than with the pre-combustion chamber models of the past!

Low profile
Computer analysis has been used to achieve an extraordinary low line profile. Suitability for installations in compact engine rooms gives new flexibility in boat design.


Easy checks and maintenance
The lubrication oil and fuel filters, fuel caps, dipstick, drain ports and fuel feed pump are all located on the operation side for simple checks and maintenance. And since there is no corrodable zinc, there is no need for troublesome replacements.

Custom features
Comply with SOLAS 96
Engine keeps on running after a 360 degree roll
Engine can run at least five minutes in water up to the centreline of the crankshaft
Engine is designed to withstand a 3 metre fall (fitted on a lifeboat)

 


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  3JH25A 3JH30A
Type 4-Cycle Vertical
4-Cycle Vertical
Aspiration Natural
Natural
Maximum Output 27.5mhp @ 3300rpm
33mhp @ 3000rpm
Cylinders 3
3
Cooling System
Fresh water cooling with centrifugal pump
Bore x Stroke 82 x 86 mm
82 x 86 mm
Displacement 1.363 litres
1.363 litres
Dry Weight 187 kg
187 kg
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