Part of the Yanmar Repair Manuals.
Lay the SKE's cylinder head on the bench and two numbers decide how the day ends: 10 kg-m on the head bolts and 0.15 mm of cold valve lash. Both come straight out of this Yanmar SKE service manual, publication A0A1027, a 63-page English PDF built around putting this engine back together correctly.
Inside are Yanmar's installation procedures for the engine, from stern tube and engine bed through alignment and cooling water piping, plus periodic checks at 50, 250, 500 and 1500 hour intervals, clearance and tolerance tables for the main components, wear exchange standards, a tightening torque list, troubleshooting charts, the optional fuel feed pump, and the approved oil list.
Guess a clearance and you pay for it with the wrong part and a second teardown. Measure against the printed limit instead, torque it once to spec, and get the engine running again.
What's Inside This Yanmar SKE Manual
| System | Pages | Key Topics |
|---|---|---|
| General Description | 5-8 | Name of Parts, Data and Settings, Piping Diagram, Dimensions |
| Installation | 9-13 | Installation of Stern Tube, Selection of Engine Bed and Installation, Installation of Sea Cock, Alignment, Cooling Water Piping Installation, Fuel Tank Installation |
| Power Transfer (Power Take Off) | 14-15 | Pulley, Flywheel, Bearing, Engine |
| General Servicing | 16-39 | Main Points of Servicing, Time of Periodic Checks (Table of Periodic Checks, Every 50 Hours, Every 250 Hours, Every 500 Hours, Every 1500 Hours, Other Time Interval Check) |
| Maintenance Standards for Main Components | 40-49 | Engine Disassembly Precautions, Clearance & Tolerance of Main Components, Exchange Standards for Wear of Main Parts, Specified Tightening Torque for Major Parts |
| Trouble Shooting | 50-58 | Fuel Injection Valve, Fuel Injection Pump, Governor, Cooling Water Pump, Lubricating Oil Pump, Reduction Reversing Gear |
| Fuel Feed Pump (Optional Parts) | 59-60 | Fuel Feed Pump, Fuel Injection Pump, Fuel Pipe, Fuel Strainer Bracket, Oil Level Stick, O-Ring |
| List of Approved Oils | 61-62 | Diesel Oils, Lubricating Oils |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Fuel injection pressure (start) | 160 kg/cm² | p. 6 |
| Fuel injection timing (start) | 12° ±1° Before Top Dead Center (BDC) | p. 6 |
| Cylinder head bolts tightening torque | 10 kg-m | p. 49 |
| Oil pressure (hand start) at 2,400 rpm | 2-2.5 kg/cm² | p. 6 |
| Rated Engine Speed | 2,400 rpm | p. 6 |
| Cylinder Bore x Stroke | 92 x 100 mm | p. 6 |
| Valve Clearance (Cold Engine) | 0.15 mm | p. 6 |
| Engine Oil Change Interval | Every 500 hours | p. 20 |
| Flywheel Retaining Nut Tightening Torque | 24 kg-m | p. 49 |
| Connecting Rod Bolts & Nuts Tightening Torque | 6.6 kg-in | p. 49 |
