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AOS - where does each inlet/outlet go?

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Old 03-07-2017, 11:19 PM   #1
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Default AOS - where does each inlet/outlet go?

Where do the two ports on the bottom of the AOS go/do? They appear to go to the crankcase. I assume one is to drainoilback to the pan, but not sure what the other is for? Anyone know?

#3 and #4 in the attached
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Old 03-08-2017, 06:46 AM   #2
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#1 connects to the intake manifold to provide vacuum to the crankcase. #2 & #3 connect to the to top of the cylinder heads, #3 via a bellows boot and #2 via a plastic cross over hose. #4 is the oil drain back into the crankcase
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Old 03-08-2017, 04:09 PM   #3
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We are going to need more pics - you know, like your avatar.
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