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Yanmar 3JH3E Service Manual
Yanmar 3JH3E Service Manual

Yanmar 3JH3E Service Manual

Marine diesel engine
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SERVICE MANUAL
MARINE DIESEi. ENGINE
MODEL
3JH3(B)(C)E494JH3(B)(C)E

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JOSE DUARTE COMERCIO AUTOMOVEL LDA
June 11, 2025

ESPECIFICAÇÕES TENCICAS APERTOS E REGULAÇÃO DE VALVULAS

1 comments:
Mr. Anderson
August 18, 2025

The technical specifications for valve adjustments and related settings for the Yanmar 3JH3E are:

Valve Clearance (Intake/Exhaust):
- 0.15–0.25 mm

Valve Timing:
- Intake valve opens: 6°–20° before top dead center (BTDC)
- Intake valve closes: 45°–58° after top dead center (ATDC)
- Exhaust valve opens: 51°–61° before bottom dead center (BBDC)
- Exhaust valve closes: 13°–23° after top dead center (ATDC)

Valve Guide Inner Diameter:
- 8.015–8.030 mm

Valve Oil Clearance:
- 0.045–0.075 mm

Valve Sinking Amount:
- Intake: 1.0 mm
- Exhaust: 0.3–0.5 mm

Valve Umbrella Thickness:
- Intake: 1.244–1.444 mm
- Exhaust: 1.35–1.55 mm

Valve Spring:
- Free length: 44.4 mm
- Distortion: 1.1 mm
- Tensile strength (1 mm under pressure): 2.71 kg
- Axonometric pitch: 3.61

Turning Torque (Rotor Shaft):
- Less than 1.5 kg-cm

No specific torque values for bolts or fasteners were provided.

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John Olsson
April 29, 2025

oilfilter specification

1 comments:
Mr. Anderson
May 15, 2025

The oil filter specified for the Yanmar 3JH3E engine is the genuine Yanmar oil filter with reference number 119305-35170. It is designed for optimal performance, efficiency, and durability.

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