Piston wrist pins
- Thread starter Bkspear
- Start date
Make sure you lube it and run it. If a new one isn't tight compared to an old one there ain't much point. Feel is a bit subjective so I don't know how much you're going to learn.
I am saying I think the new ones are too tight. The piston does not have any play on the rod.
I would call that normal then. The pins will be fairly tight until they have some run time in the engine.
This is my first engine rebuild so I am just trying to be cautious. I didn't want any bent or damaged rods. Thank you for the info, I appreciate it.
I know that my machinist uses heat to install those press fit rods. Other methods can distort the material on the inside or outside of the piston. It's a bit hard to tell in the pic, but the inside of the piston looks a little squished in the upper right hand corner of the pin. Probably from the rod pressing against it when it was being installed. If the metal in that spot got mushed a bit it would close that inside pin bore a bit and make the movement stiff.
Libriplate is your engine rebuilding friend, use it on everything you reassemble and it will just melt into the engine oil during break in.