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B230FT My First Rebuild

Pointless tube

The tube just ends up getting hard and brittle. I ordered a replacement tube and trimmed it down. I could have also just used a o-ring. The tube is pointless in my opinion so I only used enough of it to have it make the seal to the block.

The tube may appear to do nothing but show the oil where the pan is, but what it really does is keep the liquid oil separate from the crankcase gasses and keeps the gases flowing in the right direction. Positive Crankcase Ventilation depends on that tube being long enough to submerge in the oil pan.