09-10-2022, 10:19 AM
Having found a 15g disparity in conrod and cap across the 4 rods in a running engine, I surmise that there are two variants of the same part number, early and late; the early ones having the fancy Austin script and the later heavier ones not.
Presumably engine builders notice this when evening up weights for the units, whereas those trying to fix an engine don't; they just repair and replace... which may lead to the situation I was in in the first place.
Any thoughts?
I consider I probably won't find 15g removal on a rod and cap and thus may have to add washers to the other three... or find an earlier variant that has perhaps been used on a reground crank whose whitemetal could be made good for my unground crank? (I'd like to use aerolock nuts so I don't have much option for shortening the bolts on the heavy one, either).
Presumably engine builders notice this when evening up weights for the units, whereas those trying to fix an engine don't; they just repair and replace... which may lead to the situation I was in in the first place.
Any thoughts?
I consider I probably won't find 15g removal on a rod and cap and thus may have to add washers to the other three... or find an earlier variant that has perhaps been used on a reground crank whose whitemetal could be made good for my unground crank? (I'd like to use aerolock nuts so I don't have much option for shortening the bolts on the heavy one, either).