Metal Shims to Attain Compression
#28245 from WILLIAM TRAINER · No action required · Minutes (2020-03 Fastrack)
Thank you for your letter. It is believed that this would already be considered legal under the rule
9.1.5.E.1.m.1 and 9.1.5.E.1.m.1: "The use of alternate engine components which are normally
expendable and considered replacement parts, such as fasteners, gaskets, seals, bearings, water pumps,
etc., is permitted."