SQ14 Piston

This week at work I have come across a new style of piston and how it connects to the connecting rod. This piston is a older piston and has a design that has no retaining clips for the piston pin. Instead the connecting rod bolts to the piston pin in the middle with 2 bolts. There is not much info on pistons like these. No one else in the shop have ever worked on something like this. We had to clean them up, cracked check, then replace one of the pistons bushings. When replacing the bushing we had to tear the old one out very carefully with punch and chisels. Then the new one was dropped in liquid oxygen and the piston was heated so we could slide it in qickly. After installing the new bushing. We had to modify a pinch to punch the retaining notches on each side ensuring that the bushing won't slide with the pin. then the bushing brace had to be cut and filed down to make smooth so there would be no ruff edges.

Hours: 

Week: 40

Total: 840