Thread: EEK Motor Back From Machine Shop To Find This!!

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Originally Posted by 34_40

I wouldn't blame the shop when you handed them the parts and said "use these".
How was the wear calculated? Since you provided the pistons, you must've measured the bores? Yes/ No?

Since this is a budget job, just keep moving forward, that line won't amount to much, you'll never feel it in the butt dyno!

As a professional the shop is obligated to do the job in a workman like manner. If the score could not be removed to accommodate the pistons supplied, he should have stopped and informed the customer of the options.
I'm in agreement with several others, if the score can be felt it needs to be fixed. The score not only allows pressure to escape past the rings leading to oil contamination, but also diminishes the pressure applied behind the rings lessoning ring to cylinder wall tension, usually resulting in the rings not seating properly and early failure. And as Jerry implied, installing new pistons without balancing the rotating assembly is asking for trouble too, budget or not it is a bad practice.
As a wise man once told me, "sometimes you can't do what the customer wants"..