GM: Electra/Park Avenue/Ninety-Eight 1990-1993

Piston and Connecting Rod Assembly



  1. Make sure all parts are clean. Install some lengths of rubber tubing over the connecting rod bolts to prevent damage to the crankshaft journals.
  3. Apply engine oil to the pistons, rings and cylinder walls, then install a piston ring compressing tool on the piston.
  5. Important: install the assembly in its respective cylinder bore with the notch in the top of the piston facing towards the front of the engine.
  7. Lubricate the crankshaft journal with Assembly Lube and install the connecting rod bearing cap, with the bearing index tang in rod and cap on same side.

When more than one rod and piston assembly is being installed, the connecting rod cap attaching nuts should be tightened only enough to keep each rod in position until all have been installed. This will aid installation of the remaining piston assemblies.

  1. Torque the rod cap nuts to the specifications in the `Torque Specifications' chart in the beginning of this Section.
  3. Install all other parts in reverse order or removal.
  5. Install the engine in the vehicle. See `Engine' removal and installation.