I have seen cams wear a bit on the high spots of the ramps. Often not a huge issue when the cam has a lot of hardened surface, or is all forged steel like in my Ford IH diesel pickup.
Chevy cams in the 70s were soft castings with a very thing hardened surface (Parkerized). One that thin layer wore through, the cam wore down to nothing fast.
This Ford Jubilee with the 134 engine seems to have wear at the bottom of the cam, not on the high spot. Very odd. I will know more later.
When it comes to custom cam grinding? I have to wonder how a cam is rehardened if it is a soft casting?
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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