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Why is there a hose routing the crank case to the intake?

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Old 03-12-2006, 08:57 PM
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Why is there a hose routing the crank case to the intake?
As mentioned in topic.
Can I just put a breather on that crankcase hole and plug that hole on the intake pipe? or is there any reason to keep the crankcase vaccume? Thanks !!!
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Old 03-12-2006, 09:19 PM
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it sucks pressure from the crank case/valve cover... yes it has a reason. you should buy a catch can if you want to do it right

btw, you have 240 posts haha
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Old 03-13-2006, 08:19 PM
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As the engine runs, pressure builds up in the crank that has to be vented out. PCV has something to do w/ crank vintalation too I think.
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