Crankshaft Spacer/Balancer Shim Blueprint MC 98264A225 - Dimensions & Specs

This document is a mechanical engineering blueprint (sheet 4 of 4) produced by Amesbury Statesville West of Statesville, NC 28625, titled "CLOCKING" (drawing number "271 clocking"), drawn by GMS on 2/5/14. It details a Crankshaft Spacer/Balancer Shim, description MC 98264A225, quantity 1, drawn at 2:1 scale, with material, finish, and heat treatment not specified. The front view shows a circular disc with an outside diameter of Ø2.500, a Ø.750 center bore, and four Ø.467 holes arranged on a Ø1.783 bolt circle (radial dimension 1.261 shown). The side view specifies a thickness of .062. The drawing includes standard tolerance notes (XX/XX ±1/8, .X ±.062, .XX ±.010, .XXX ±.005, .XXXX ±.0005, angles ±1°), machined surface finish of 63 RMS, requirements to remove burrs, sharp edges, chips, dyes, oil and grease, that all dimensions be held after plating, and that welds follow standard manufacturing practice. A blank revisions table (levels A–E) and a confidentiality statement from Amesbury are included. A reader can learn the exact dimensions needed to fabricate or verify this crankshaft spacer/balancer shim. The drawing does not state any vehicle year, make, model, or engine applicability.