Part of the Yanmar Parts Manuals.
A stuck plunger in the fuel injection pump will stop a Yanmar 4TNE88-EBVC dead, and guessing at the replacement pump assembly is an expensive mistake. This parts catalog, Yanmar publication Y00B6520, opens that pump up in Figure 11 with the part number for every piece, so you can price a rebuild before you touch a wrench.
Across 36 pages and 17 exploded figures it covers the whole vertical multi cylinder diesel: cylinder block, gear housing, cylinder head and bonnet, camshaft, crankshaft and piston, the lubricating oil and cooling water systems, governor, starting motor, and generator, each figure paired with its parts list. Repair parts are included, down to 0.25 oversize piston rings and undersize bearing metal for a rebore or crank regrind.
When the engine is apart on the stand and there is no dealer counter to lean on, this PDF names every gasket, seal, and bolt before it all goes back together.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Engine Overview | 1-2 | Vertical Multi Cyl Diesel, Info |
| Cylinder Block | 3-4 | Figure 1 Cylinder Block |
| Gear Housing | 5-6 | Figure 2 Gear Housing |
| Flywheel Housing & Lub.Oil Sump | 7-8 | Figure 3 Flywheel Housing & Lub.Oil Sump |
| Cylinder Head & Bonnet | 9-10 | Figure 4 Cylinder Head & Bonnet |
| Suc. Manifold | 11-12 | Figure 5 Suc. Manifold |
| Exh. Manifold | 13-14 | Figure 6 Exh. Manifold |
| Camshaft & Driving Gear | 15-16 | Figure 7 Camshaft & Driving Gear |
| Crankshaft & Piston | 17-18 | Figure 8 Crankshaft & Piston (Repair Part) |
| Lub.Oil System | 19-20 | Figure 9 Lub.Oil System |
| Cooling Water System | 21-22 | Figure 10 Cooling Water System |
| Fuel Injection Pump | 23-24 | Figure 11 Fuel Injection Pump |
| Fuel Injection Pipe | 25-26 | Figure 12 Fuel Injection Pipe |
| Fuel Pipe | 27-28 | Figure 13 Fuel Pipe |
| Governor | 29-30 | Figure 14 Governor |
| Starting Motor | 31-32 | Figure 15 Starting Motor |
| Generator | 33-34 | Figure 16 Generator |
| Gasket Set (Optional) & Tools | 35-36 | Figure 17 Gasket Set & Tools |
Every system also includes a parts list.
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Piston Ring Oversize | 0.25 | p. 16 |
| Ring Set Oversize | 0.25 | p. 16 |
| Metal Pin Undersize | 0.25 | p. 16 |
| V-Belt Length | 37.5 | p. 20 |
| V-Belt Length (Cooling Water System) | 37.5 | p. 20 |
| O-Ring 1A P-12.0 | 12.0 | p. 34 |
| O-Ring 1A P-16.0 | 16.0 | p. 34 |
| O-Ring 1A S-24.0 | 24.0 | p. 34 |
| O-Ring 1A P-32.0 | 32.0 | p. 34 |
| O-Ring 1A S-50.0 | 50.0 | p. 34 |
