4JHE
Original-generation Yanmar JH diesel: naturally aspirated 1.644 L inline four rated 44 hp at 3600 rpm, used mainly as an auxiliary in 1980s sailboats.
The original JH series was Yanmar's first four-cylinder JH family: a 78 x 86 mm, 1.644 L direct-injection, freshwater-cooled block with a Yanmar YPES in-line injection pump, shared by four ratings (4JHE, 4JH-TE, 4JH-HTE, 4JH-DTE). It was replaced by the larger-bore JH2 series (1.817 L) at the end of the 1980s.
The 4JHE is the naturally aspirated member of the family. Yanmar's service manual lists it with the KBW20 constant-mesh multi-disc gear (2.17, 2.62 or 3.28:1); the operation manual also mentions KM4-A down-angle gears in the family, and 'B' (4JHBE) and 'C' (4JHCE, saildrive) package codes exist in Yanmar manual titles.
Its successor was the 4JH2E.
Specifications
Power
- Power
- 44 hp
- Power (kW)
- 32 kW
- Rated speed
- 3600 rpm
Engine
- Configuration
- inline 4
- Cylinders
- 4
- Displacement
- 1.644 L
- Aspiration
- naturally aspirated
- Fuel
- Diesel
- Mounting
- Inboard
Reviews
No independent reviews on file yet.
Sources
- 1. Service Manual 4JHE, 4JH-TE, 4JH-HTE, 4JH-DTE (0000A0A1647), specifications p. 1-4 — Yanmar (hosted copy)
- 2. 4JHE / 4JH-TE / 4JH-HTE / 4JH-DTE Operation Manual, specifications — Yanmar (via ManualsLib)
- 3. Yanmar Marine Engine Outline 2010 (Exhibit A: model years by series) — Yanmar America outline, hosted by Toad Marine Supply
- 4. JH Series parts (4JH-E 1983-89, 4JH-TE 1983-89, 4JH-HTE 1985-89, 4JH-DTE 1985-89) — Oldport Marine
Specifications compiled from manufacturer sources.