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I need to replace a couple of bent brake rods. What steel should be used? Is it OK to use stainless?
David
I used 1144 stressproof because it is fairly strong but machines really easily. You could use a chrome-moly steel like 4140 (sorry about the North American designations) to be way on the safe side. I suspect the original rods were just hard drawn mild steel. I don’t know which car you have but on my 16/80 I did some analysis and the most highly stressed part of the system was the short link that connects the pedal lever to the brake cross shaft. I remade this in 4140.
I was advised by John Batt in 1999 to use stainless rod. Been on my 2 Litre now for 25 years
with seemingly no detrimental effect over the rusted mild steel originals.
When dirty just wipe off with a WD40 soaked cloth!
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