Piston: Testing and Inspection
Pistons and Rods Inspection1. Inspect the connecting rod for bending or twisting. If the connecting rod is bent or twisted, replace the connecting rod.
2. Inspect the connecting rod bearings.
3. Inspect the connecting rod lower end for wear.
4. Inspect the connecting rod upper end for scoring.
5. Inspect the crankshaft rod bearing journal for wear.
6. Inspect the piston for scoring, cracks, and wear.
7. Inspect the piston for taper using a micrometer.
8. Inspect the piston for fit to the connecting rod.
9. Inspect the engine block deck surface for flatness using a straight edge and a feeler gauge.
10. Inspect the bearing bore for concentricity and alignment using cylinder bore check gauge J-8087. If the bearing bore is beyond specifications, replace the engine block
11. Inspect the engine block cylinder bore for wear, runout, ridging and taper using a bore gauge.
12. Inspect the engine block cylinder bore for glazing. Lightly hone the cylinder bore as necessary.