Gregory Bender

2008 November 22: Pistons and cylinders (2.00 hours)


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Although the pistons from Swain Tech looked great, the coating was too thick to fit inside my cylinders. This was a mistake on my part as I miscalculated the required clearances. Removing the coating is not possible as the skirts were bead blasted before the coating was applied. Were the bead blasted area become exposed, that would be a bad thing. What to do? I suppose I could have had the bores enlarged and then recoated with nikisil (expensive and a complete waste of the existing nikisil coating). So, I decided to source another pair of pistons and use them. This morning I spent my time thoroughly cleaning the pistons and ring grooves, then measuring the ring groove clearances, etc.

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