Genuine 1990 Mazda 626 Piston

1990 Mazda 626 Piston Parts and Q&A

• Q: What steps should be followed before installing the piston and connecting rod assemblies on 1990 Mazda 626?

  A: Ensure cylinder walls, chamfered edges and crankshaft are ready. Remove rod cap, old bearings; clean surfaces. Install new bearing halves without lubricant, fit piston rings and hoses. Lubricate piston and rings, compress rings, insert piston with notch forward, bolt rod cap, check bearing clearance with Plastigage.