BALANCE HOLE PLUGS
Balancing a crankshaft by drilling large holes in counterweights can leave an appearance of the counterweight that is not pretty. To improve the appearance, we keep a supply of disc style freeze plugs in the diameters of our balancing drills so we can “cap off” large drilled holes. We removed the plating on the disc plug by sanding or glass beading it, then tig weld it to the crank using a stainless welding rod. We use a “soft” stainless rod that works well with either steel or cast iron crankshafts.

Lyle Haley
The Shop Doc
Andover, MN
July, 2020