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Austinsevenfriends
1.5/16 Sports Rods - Printable Version

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RE: 1.5/16 Sports Rods - Terrytuned - 01-12-2020

Bob the first photo this crank had been raced for 5yrs and it was from a friends car, I was only sent the photo. The 2nd crank about the same age I removed from the broken c/case this photo shows the break before dismantling, both were 1"5.16, I would not advise anyone to race with a 1"5.16 they have a limited life.
  Terry.

RE: 1.5/16 Sports Rods - Bob Culver - 01-12-2020

Thanks terry
Fast progressing fatigue cracks are often hard to judge but the photo appears as usual to start from the inside. A failure near the middle of crank could reasonably be expected to start from the outside, hence my curiosity.

RE: 1.5/16 Sports Rods - Robert Foreman - 01-12-2020

Hello Gene, 
the fault is the little ends are drilled underneath on the thrust side leading to wear. If they are more than a couple of tenths of a thou oversize then new oversize pins will be required. 
  Personally I wouldn't use any original sports rods with the advent of beautifully designed and made new ones.