Pushrod tubes . A wee heads up .

[Beemerboff]

That is not what he said. He suggested that polishing the end of the tube would allow it to fit.

I accept that it would be best to measure the hole and adjust the tubes to fit although comparing the new tube to the one removed should suffice, but it seems most people have been supplied oversized, out of round tubes and just knocking them in with the mandrel may result in damaging the alloy casting.

If you have tight holes he barrels are relatively soft alloy and it takes a second or two to clean them up with a flap wheel in a power drill. Quote from my previous thread.