I finally got around to pulling the pistons out of the engine with the
broken crank shaft.
I pulled #1 first. It looks almost like new! No ridge and no carbon on
the skirt. The ring grooves are clean and not tapered. I figured that I
was going to get away without having to buy new pistons and sleeves. I
then pulled the other three and found that they are totally worn out. In
fact, they aren't even the same style of pistons as the first. The #1
piston has four rings, while the others have three. Apparently someone
tried to do a cheap repair, which must not have lasted long.
With the mis-match in piston weights, it's no wonder that the crank broke!
Mike
1956 TR3 (under restoration)
1960 TR3A (looking more like parts, the further I go)
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