Was going to put the engine together this weekend but just ran into this. The new 87MM piston and liner set that I got does not meet the rings gap specs from the manufacturer. I was suspect about these County piston and liner sets in the first place but they did come from one of the better parts houses.
The specs state that there should be .003--.004 gap per inch of cylinder diameter. Cylinder diameter is 3.45" That works out to .01035 to .0138
What I come up with when I measure is .016 .017 and .018 for all the rings. Very sloppy even with the .0138 tolerance.
Without spending a ton of money on pistons and liners is this what I should expect?
By the way the original factory tolerances were .003 .010
Has anybody else delt with this? I'm thinking of sending the whole lot back, but I've had them for 2 or 3 months.
The specs state that there should be .003--.004 gap per inch of cylinder diameter. Cylinder diameter is 3.45" That works out to .01035 to .0138
What I come up with when I measure is .016 .017 and .018 for all the rings. Very sloppy even with the .0138 tolerance.
Without spending a ton of money on pistons and liners is this what I should expect?
By the way the original factory tolerances were .003 .010
Has anybody else delt with this? I'm thinking of sending the whole lot back, but I've had them for 2 or 3 months.