Wrist pins
#1
Wrist pins
I bought a 85 Evo with a S&S top end. I had a wrist pin fail in the rear cylinder. I replaced the jug, piston and wrist pin. It failed again. I've heard rumors about teflon buttons to place over the keepers. I also heard that rod end play might play a roll in this. I looking for alil' help so I can go eat some bugs.
#3
RE: Wrist pins
If the lower end is worn out the rod will not run true on the crank pin and this will pop out the keeper on the wrist pin. Check the rod to crank pin wear.
Teflon pin keepers have been known to wear a grove in the cylinder from carbon and metal from the oil impregnating the soft Teflon and acting like sand paper.
Teflon pin keepers have been known to wear a grove in the cylinder from carbon and metal from the oil impregnating the soft Teflon and acting like sand paper.
#5
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