4JH45 Yanmar
Yanmar
Ref. 4JH45
The Yanmar 4JH45 is a four-cylinder, naturally aspirated marine diesel from Yanmar's JH common rail series, rated 33.1 kW (45 mhp) at 3000 rpm at the crankshaft (31.8 kW / 43.3 mhp at the propeller shaft) from 2.190 L (88 x 90 mm bore x stroke). It uses direct injection with an electronically controlled Bosch common-rail system (up to 160 MPa), freshwater cooling via heat exchanger, a 12V 1.4 kW starter and a 12V 125A alternator. It is offered with KM35P, KM35A2, KM4A1, ZF25, ZF25A or ZF30M marine gears, the SD60-5 saildrive, or bobtail, and is certified to RCD 2, BSO II and EPA Tier 3.
Characteristics
Hover any value for notes and sourcesHorse Power
45
Hp
Torque
—
Nm
Torque
Light Duty / High Output / Pleasure Duty
Weight
220KG
Number of Cylinders
4
Cylinder Layout
inline
Displacement litres
2.19Liter
Is Injection
Yes
Has a Turbo
No
Block Material
—
Cooling System
Water-cooled
Compression Ratio
—
Starter Type
Electric
RPM Range
3000
Emission Standard
EPA Tier 3–Other Regional Standard
Dimensions
87cm × 58.8cm × 63.1cm
Certifications
RCD
Sources
3 citedMaintenance schedule
15 tasks · 8 intervals| Task | After 50h | Daily | Every 1mo | Every 1yr | Every 4yr | Every 50h | Every 250h | Every 1000h |
|---|---|---|---|---|---|---|---|---|
| Change Change Gearbox Oil | ||||||||
| Change Change Oil | ||||||||
| Change Change Oil Filter | ||||||||
| Inspect Inspect belt tension & Inspect belts for wear and tears | ||||||||
| Inspect Check the shaft alignement | ||||||||
| Mechanical Check & Adjust valve clearances | ||||||||
| Inspect Inspect coolant levels & state | ||||||||
| Inspect Check for water in fuel filter | ||||||||
| Change Flush/Change coolant | ||||||||
| Change Change Fuel Filter | ||||||||
| Inspect Inspect air filter | ||||||||
| Inspect Check cable connections | ||||||||
| Inspect Inspect Exhaust System | ||||||||
| Change Change Raw water impellar | ||||||||
| Inspect Inspect Sail Drive Bellows |