20psiofevil
Active Member
- Joined
- Feb 10, 2013
Friend snaped a crank ( similar crank I'm running) and I'm trying to investigate for my own piece of mind. This looks clearly to me like a oiling issues or bad line bore job. Any opinions welcome.
From what I gather it went like this... the car was at high 5000rpm, big bang and the engine was done because it took out an exhaust valve and damaged 2 rods and pistons. I question the heat lines on the bearing as being the cause of failure. but I'm no expert.Hard to tell what happened first
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https://en.wikipedia.org/wiki/Ford_Essex_V6_engine_(Canadian)The crank appears to be cast and isn't designed for the H.P. level it was being used at. Based on the split crankpin design which is similar to an even fire Buick V6 the weak point in the crankshaft design is between the # 5 and 6 rod journals. Due to the 3.74" stroke length the crank is inherently weaker then a stock stroke crank. What application is this crank from?
Neal