Pontiac Fiero 1984-1988 Repair Guide

Piston and Connecting Rod Assembly

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INSTALLATION





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Fig. Fig. 1 Most pistons are marked to indicate positioning in the engine (usually a mark means the side facing front)



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Fig. Fig. 2 Installing the piston into the block using a ring compressor and the handle of a hammer



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Fig. Fig. 3 The notch on the the side of the bearing cap matches the groove on the bearing insert

  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.
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CAUTION
The EPA warns that prolonged contact with used engine oil may cause a number of skin disorders, including cancer! You should make every effort to minimize your exposure to used engine oil. Protective gloves should be worn when changing the oil. Wash your hands and any other exposed skin areas as soon as possible after exposure to used engine oil. Soap and water, or waterless hand cleaner should be used.

  1. Apply engine oil to the pistons, rings and cylinder walls, then install a piston ring compressing tool on the piston.
  2.  
  3. Install the assembly in its respective cylinder bore with the notch in the top of the piston facing towards the FRONT of the engine.
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  5. Lubricate the crankshaft journal with Assembly Lube and install the connecting rod bearing and cap, with the bearing index tang in rod and cap on same side.
  6.  

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.
  2.  
  3. Install all other parts in reverse order of removal.
  4.  
  5. Install the engine in the car. Refer to the Engine removal and installation procedures in this section.
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