Quote:
Originally Posted by katy
You got it.
Modern engines have water jackets that are the length of the cylinder. Model A engines only have water jackets for part of the cylinder, necessitating that the pistons in a Model A engine require more clearance than a modern engine.
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How hot does it get down at the bottom of the cylinder? I have never known it to be any hotter there than what the crankcase area is. What am I missing, and what excessively heats up that area?