Inspection Procedure
- Clean the inner of the cylinder with a clean cloth.
- Inspect the inner of the cylinder if it is damaged.
- Measure the inner diameter of the cylinder (1). If it is out of specification, replace it. Refer to
Engine Mechanical Specifications.
- Clean the piston with a clean cloth.
- Measure the outer diameter of the piston (1), 15 mm up from the bottom. If it is out of specification, replace it. Refer to
Engine Mechanical Specifications.
- Measure the inner diameter of the cylinder, 50 mm below from the surface of the cylinder head, and
the clearance of the piston (1), 15 mm up from the end of the piston skirt. If it is out of specification, replace it. Refer to
Engine Mechanical Specifications.
- Measure the piston ring groove clearance (1). If the piston ring groove clearance is out of specification,
replace the piston and rings. Refer to
Engine Mechanical Specifications.
- Measure the piston ring gap (1). If the piston ring gap is out of specification, replace the piston
ring. Refer to
Engine Mechanical Specifications.
- Measure the piston pin (1). If it is out of specification, replace it. Refer to
Engine Mechanical Specifications.
- Cut the plastic gauge (1) the same length as the bearing width and put it on the crankshaft
bearing. It should be parallel with the crankshaft.
- Install the connecting rod bearing and caps.
Tighten
Tighten the connecting rod caps bolts to 35+45°+15° N·m (25.8+45°+15° lb ft)
- Remove the connecting rod bearing and caps again.
- Measure the clearance of the connecting rod bearing oil. If it is out of specification, replace it. Refer to
Engine Mechanical Specifications.