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Copper Plating

June 17 2017 at 10:45 AM

Bill Conley  (Login EndlessProject)

Response to Factory Rod coating ?

Rod big-ends are checked on the line with a "go - no go" gauge.

Back in the day, many rods found oversize or out of round could be saved by copper plating (to build up the surface) and re-honing the big end. They would be sent out in batches for rework, then make it back onto the assembly line. It's fairly common to see the odd copper-color connecting rod in a light duty passenger car engine.

They didn't seem to be doing that anymore when I was in Ford Engineering in the 90's. I even did a stint as a line foreman in Cleveland, putting together the ancient 300 I-6, and I never saw a copper rod. Maybe they figured out that repaired rods weren't worth the warranty risk on a new engine...

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