P&W 1830 Radial in 1/6 scale.

[Bill Gruby]

Prints called for the bearing sleeved to be pressed on and held with Loctite. That didn't sit right with me. This engine will turn 9500RPM at the high end. I went old school again. I cut the sleeves .004 undersize on the bore. I cut the shafts to print. Into the oven at 400 degrees went the sleeves. and into the freezer went the shafts. Two hours later they went together with a light tap. Once they cooled they are one. If you are looking to see where the sleeves are, look between the square end and the gears.

"Billy G"