Part of the Yanmar Parts Manuals.
With the crankshaft out and the journals measured, the next job is ordering the right shells, and the Cylinder Block section of this catalog lists standard, 0.25 under-sized, and over-sized metal for the mains and crankpins, so the correct bearings arrive the first time.
The catalog is Yanmar publication Y00R3512, covering the 4JH2E, 4JH2-TE, 4JH2-THE, 4JH2-DTE, 4JH2-UTE(B), and 4JH2-HTE marine diesels across 110 pages. It walks the engine end to end: cylinder head, piston and connecting rod, camshaft and driving gear, fuel injection pump and governor, turbocharger, sea and fresh water cooling circuits, gear housing, clutch, and the electrical system, each drawn as an exploded figure with a numbered parts list.
Per-model quantity columns show which parts fit which variant, so you can tell what the naturally aspirated 4JH2E shares with the turbocharged engines before you spend anything. It downloads as a bookmarked PDF you can keep at the bench or print by the page.
Complete the set for your 4JH2
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Clutch & Transmission | Clutch Remote Control, Clutch Assy, Clutch Housing, Clutch Shaft, Counter Shaft, Input Shaft & Counter Shaft | |
| Fuel System | Fuel Injection Pump, Fuel Injection Pipe, Fuel Pipe, Governor, Engine Stop & Cold Start Device, Fuel Tank, Engine Stop Device | |
| Cooling System | Air Cooler, Lubrication Oil Cooler, Cooling Sea Water Pump, Cooling Fresh Water Pump, Cooling Fresh Water Cooler, Cooling Sea Water Pipe, Cooling Fresh Water Pipe, Sea Water Filter | |
| Engine | Cylinder Block, Flywheel Housing, Lubrication Oil Sump, Cylinder Head, Bonnet & Breather, Camshaft & Driving Gear, Turbocharger, Crankshaft & Flywheel, Piston & Connecting Rod, Lubrication Oil System, Lubrication Oil Line, Gasket Set | |
| Electrical System | Generator, Wire Harness & Sensor, Electric Bilge Pump | |
| Hydraulics & 3-Point Hitch | Speed Remote Control Device | |
| Body & Operator Station | Instrument Panel | |
| Decals & Accessories | Label, Tool | |
| Other Components | Gear Housing, Mounting Foot, Suction Manifold, Mixing Elbow, Timer, Starting Motor, Spare Part, Coupling, Single Lever Control, Repair Set, Reequip Ment Kit, Input Shaft, Output Shaft, Control Device |
Every system also includes a parts list.
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Impeller quantity | 1 unit | p. 51 |
| Fuel Strainer Assembly quantity | 1 unit | p. 51 |
| Thermostat quantity | 1 unit | p. 51 |
| Sea Water Pump Seal Dimension | 20x35x8mm | p. 24 |
| Cooling Sea Water Hose (ID/OD x Length) | 13/20x300mm | p. 28 |
| Generator Output | 12V-55A | p. 49 |
| Electric Bilge Pump Voltage | 12V | p. 56 |
| Fuel Tank Capacity | 30L | p. 58 |
| Remote Control Cable Length | 7m | p. 63 |
| Instrument Panel Fuse Rating | 3A | p. 67 |
