Connecting rod guide

A connecting rod assembly, comprising:

• a body comprising a first end and a second end;
• the first end sized and shaped to operably engage with a crankshaft journal of a crankshaft;
• the second end sized and shaped to operably engage with a wrist pin in a piston;
• and
• a pair of guide spacers respectively disposed on either side of the second end when engaged with the wrist pin;
• wherein the body is configured to convert rotational motion of the crankshaft journal to a reciprocating motion at the wrist pin.

A mechanical assembly for a compressor or engine, comprising:

• a connecting rod comprising a first end and a smaller second end;
• a crankshaft journal pivotably engaged with the first end;
• a wrist pin pivotably engaged with the second end;
• wherein the wrist pin is pivotally engaged with a piston, and a pair guide spacers are disposed between the piston and the second end of the connecting rod.