Part of the Yanmar Parts Manuals.
Yanmar built the L70N in a long list of application specs, and the AJ8T2AAWK suffix decides which crankshaft, governor spring, or fuel cock actually fits your engine. Publication 0CW10-M68200EN is the parts book for the L70N5AJ8T2AAWK, the vibrating machine specification of the air cooled L70N, with effective machine number notes and interchangeability marks that tell you whether a superseded number still fits your serial range.
When the engine is in pieces on the bench and nobody is left to ask, guessing at part numbers gets expensive. Eleven illustrated sections run from the cylinder block through the injection pump to the starting motor and dynamo, each with reference numbers, quantities, and factory part numbers, down to the 0.25 undersize main bearing and the 12V Hitachi starter.
The PDF is 17 pages and 0.6 MB. Print it, clip it above the bench, and let it collect fingerprints while you build the order list.
What's Inside This Parts Manual
| System | Pages | Key Topics |
|---|---|---|
| Reference Materials | 2-3 | Fuel Injection Pump, Fuel Injection Pump N, Camshaft, Roller Bearing, Retainer |
| Cylinder Block | 5 | Cylinder Block Assy, Head Gasket, Cover, Gasket, Crank Case Gasket, Cover Case, Main Bearing, Oil Inlet Pipe |
| Cylinder Head & Bonnet | 6 | Cylinder Head Assy, Valve Spring, Spring Retainer, Ring, Valve Stem Seal, Nozzle Protector, Nozzle Seat, Valve Cap |
| Air Cleaner & Muffler | 7 | Air Cleaner Assy, Air Cleaner Cover, Cleaner Assy, Element Assy, Locking Knob, Extension Assy, Air Cleaner Gasket, Muffler Gasket |
| Pre Cleaner | 8 | Pre Cleaner Assy, M5X16 Screws, Wing Bolt |
| Crankshaft, Piston & Camshaft | 9 | Tappet, Roller Tappet Assy, Push Rod Assy, Flywheel Assy, Ring Gear, Piston W/ Rings, Piston Ring Set, Ring |
| Lub.Oil Pump & Governor | 10 | Oil Pump Assy, Cover, Oil Filter Assy, Governor Lever Assy, Governor Assy, Governor Weight Assy, Needle Bearing, Oil Seal |
| Cooling & Starting Device | 11 | Decompression Label, Grommet, Collar, Seal Rubber, Top Cover Spacer, Cushion Rubber, Fan Case Seal, Recoil Starter Asy |
| F.I.Pump & F.I.Valve | 12 | Injection Pump Assy, Gasket, Plate, Plunger Spring, Delivery Valve Assy, Delivery Spring, Delivery Holder, Delivery Gasket |
| Fuel Tank & Fuel Pipe | 13 | 8X1 Gasket, Fuel Tank Cap Assy, Fuel Oil Filter, Fuel Tank Damper, Fuel Filter Assy, Fuel Tank Stay a, Fuel Tank Stay B, Fuel Cock Assy |
| Starting Motor & Dynamo | 14 | Starter 12V, Armature, Field Coil Assy, Rear Cover, Brush Holder Assy, Brush, Brush Spring, Gear Housing Assy |
| Tool, Label & Gasket Set | 15 | Air Cooled Label, Yanmar Label, Caution Label, Label How to Start-E, Diesel Label, Hot Surface Label, Thai Label, Gasket Set |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Bearing Undersize | 0.25 US | p. 5 |
| Key Dimension | 4X 12 | p. 9 |
| O-Ring Standard | 1AS22.4 | p. 10 |
| Starter Voltage | 12V | p. 14 |
| Dynamo Current | 15A | p. 14 |
| Fuse Rating | 20A | p. 14 |
