Openings on the throttle body, what for?

[Haraise]

Hi, I'd like to know if you guys could let me know what these three openings on my throttle body are, and where they go to. Thank you!

[BraveUlysses]

http://www.m42club.com/forums/showthread.php?t=2742

[Haraise]

So are the two big ones coolant passages? The throttle bodies in that thread are all pictured so that I can't see how those are connected. There is no detail on where the vaccuum tube goes though.

[Haraise]

I looked through that thread again, the cooling system has nothing to do with any of those openings. Why did you link it?

[wolfgangstbd]

they are just for vacum lines. im pretty sure the big bottom one is the crankcase vent and the other ones are just for emmisions and what not