Engine removal and overhaul procedures

Engine removal and overhaul procedures

1 If you have decided that the engine must be removed for overhaul or major repair work, several preliminary steps should be taken.

2 Locating a suitable place to work is extremely important. Adequate work space, along with storage space for the vehicle, will be needed. If a workshop or garage is not available, at the very least a solid, level, clean work surface is required.

• Specifications
• Engine and transmission removal - preparation and precautions
• Engine and transmission - removal, separation and refitting
• Engine overhaul - preliminary information
• Cylinder head - dismantling, cleaning, inspection and assembly
• Pistons and connecting rods - removal and inspection
• Crankshaft - removal and inspection
• Cylinder block/crankcase casting - cleaning and inspection
• Main and big-end bearings - inspection and selection
• Engine overhaul - reassembly sequence
• Crankshaft - refitting and running clearence check
• Pistons and pistons rings - assmbly
• Piston and connecting rod assemblies - refitting and big-end bearing clearance check
• Engine - initial start-up after overhaul and reassembly