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David George 1	15/11/2017 07:56:22
2110 forum posts 565 photos	In the past I was involved in lightweight tooling for plastic moulding and the aluminium parts were hard coat anodized and PTFE impregnated to prevent wear and corrosion from the cooling water. A local company did the process overnight. David
duncan webster	19/11/2017 12:58:08
5307 forum posts 83 photos	I've been going through some old ME's prior to passing them on. Seems Neville Evans was quite keen on ally pistons, but I then came across a letter from a Dave Murray in ME 4228 re ally pistons in gm cylinders. His rotted away, so I'm definately sticking to bronze, but I'll have a go at Jason's scheme to get the weight down. I'm not sure I want hard pistons (anodised) I'd rather the pistons wear than the cylinders. Edited By duncan webster on 19/11/2017 13:08:55

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