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Hanging tube.


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Had another question on something I can't seem to find on the search. The clear tube that comes down on the rear drivers side of the engine. It's about an inch in diameter. What is it and why is there a haze of smoke coming out of it?

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Mine is clear too :shrug: The compression that blows past the rings goes into the crankcase and has to be vented somewhere so it goes out that tube. That is why it is used to measure engine wear. There is a certain test you do with a manometer (water column) and if it has too much pressure then the engine needs a rebuild.

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