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Old 07-10-2005, 11:51 AM   #11
The Deliverator
Scooby Specialist
 
Member#: 42376
Join Date: Aug 2003
Chapter/Region: RMIC
Vehicle:
2006 92x Aero

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Quote:
Originally Posted by Charlie-III
OK, I may be wrong....but:

1- this statement "Exhaust gasses cool as they go through the catch can and associated tubing. As the temperature drops, water vapor condenses. This can cause a surprising amount of water to accumulate in the can. " is wrong in this thread. No exhaust gases end up in the oil catch can.
What you state is correct (and is why you see water dripping out of exhaust tips) in another context, but not here.
I agree that 'exhaust gasses' is not the correct term, but I'm still at a loss for a better term in this case. 'Nasty foul toxic filthy vapor the crankcase contains', my first idea, was a little too verbose.

I'm entirely open to suggestions for a more accurate term...

Quote:
2-You don't really want to PRESSURIZE an engine block (in the oil gallery), you really only want to pull a vacuum. this reduces some of the pumping of air underneath the pistons as well as removes combustion chamber gases that get by the piston rings.
.
Here I just wanted to point out that it wasn't me that suggested that 'pressurizing' was a good idea, and someone else already corrected whoever it was that did write that. I've actually spent the last few days looking into a vacuum pump to use in place of the pcv. :-)
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