2. If the stand is not available, you can remove parts from the engine mounted on the supporting surface. Place wooden blocks under the power unit. Do not allow the engine to tip over.
3. If you intend to replace the engine with a refurbished power unit, remove and rearrange attachments and external elements. These elements include the following:
- Generator with brackets
- Elements of the exhaust gas composition control system
- Thermostat with casing
- Coolant pump
- Injection system elements
- Intake/exhaust manifold
- Oil filter
- Engine mounts
- Drive disk
Note: When removing external components from the engine, consider all factors that may be useful and important during subsequent assembly. Mark the original positions of gaskets, seals, washers, studs, seals, bolts and other small parts.
4. If you intend to purchase a replacement engine, which consists of a cylinder block, crankshaft, pistons and connecting rods assemblies, remove the cylinder head, pan and oil pump from the old engine. Alternative recovery methods are described in the appropriate section at the beginning of this manual.
5. If the engine is to be restored during a major overhaul, remove the internal elements in the following sequence.
- Valve lid
- Intake and exhaust manifold
- Drive chain cover
- Pallet
- Oil pump
- Drive chain and sprockets
- Camshaft
- Cylinder head
- Pistons/rods
- Crankshaft rear oil seal housing
- Crankshaft and main bearings
6. Before disassembling and repairing the engine, make sure you have the following tools, accessories and materials. Also, please refer to subsection 11, and prepare the tools and materials needed to assemble the engine.
- Regular set of hand tools
- Small cardboard boxes and plastic bags for storing parts
- Scraper for cleaning mating surfaces
- Scan
- Puller for crankshaft damper
- Micrometer
- Calipers
- Bore gauge
- Meter with dial indicator
- Valve spring puller
- Hone for machining cylinder walls
- Tool for cleaning piston ring grooves
- Electric drill
- Set of taps and dies
- Wire brush
- Brushes for cleaning lubrication system channels
- Solvent