05-15-2008, 10:17 AM
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Slacker
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Join Date: Mar 2006
Location: Northern NY, USA
Posts: 6,110
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 Quote:
Originally Posted by WopJob
How about getting rid of the thing alltogether and venting the head to the athmosphere via a generic check valve and hose that reaches the ground?
you would have to plug the oil return, vacuum nipple, and vapor return to the throttle body.
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If a check valve were thrown into the mix and it was a really effective one, there's a very good chance that there'd be a pretty huge negative pressure build up in the base which can do funny things with how any vapors get sucked through the other routes they'd normally take while the pressure tries to find a way to equalize up to and including drawing A/F mixture down past the piston rings into base where it would end up mixing with the oil while helping to wash the liners clean of oil film on it's way by (granted that's an extreme, but it can certainly happen)
Remove it and block things off totally and you end up with excess base pressure and no place for vaporized contaminants to be drawn out and burned off which changes the acidity levels of the oil in general.
Remove it and do the drain hose bit and you get a drastic drop in base pressure and that hose pointed at the ground will turn into a nasty slobbery ikky mess maker as there's no return/collection or reburn for any of the expunged vapor so it drains pretty heavily. (at the higher working RPM's, it produces enough vapor/mist/fog to actually wet a good %-age of the undercarriage and also make this really goofy looking puff of smoke effect up underneath while you're up on it. No, really, I've tried it and it's nasty  )
The only other solution which still changes base pressure and allows some vapor into the atmosphere, but doesn't make a mess would be an aftermarket 'snot tank'/catch tank with an air filter on it ($$) to allow the base pressure air to pulse at neurtal pressure and a return line at the bottom to feed the fluids back into the crankcase like they do now (unless you want to drain it with a petcock every X days anyway) connected to the cam cover via big bore hose.
That's the whole tweak of it: the factory vapor seperator is far more than just a vent, it's a deliberate device/system that's a much bigger part of how things work overall than the systems as found on older V8s making it far more difficult to circumvent effectively/effciently.
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