I have it on my Saab IC too, I figure its a drain plug for all that oil that gets pumped back into the intake if you haven't by-passed the oil lines that are plumbed back into the intake to vent the valve covers. I know when I unplugged mine I had a nice bit of gooey sludge ooze out.
Thanks, I figured it wasn't for a bov but I remembered a guy on ebay saying the 900 i/c had a hookup for a bov on it and that's the only thing even close. It's pretty small, a drain for the oil build up sounds like it's probably right. Thanks again.
-Matt
'92 SS 5mt. All go and no show. Sold :(
'94 Audi UrS4 Modded (new project)
'96 Outback 5mt.
'07 Legacy 2.5i SE
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Oh... and I hope the fucker get bunked with Gunter, arrested for raping Gorillas.[/quote]