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B21F Vacuum Line Routing Q's 200 1980

posted by  Bean on  Tue Jun 29 08:59 CST 2004
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last visit: Mon Aug 30 03:53 CST 2010
[RELATED]

1980 242GT 93k miles. B21F, M46

I recently installed a new engine wiring harness on my 242GT, the only two wires that were really bad were the coolant temp sensor (yellow) and one of the alternator wires (thin red with spade connector). Happy I did it, well worth the cost. Also did a bunch of other stuff which left the engine disassembled for about a week, labelled most everything but missed one hose.

I don't know how to post pictures but I'll try to describe:

Between the Idle Speed adjustment screw housing on the Throttle Body and the Bottom inlet of the Auxiliary Air Valve there is a hose (~1/2" ID). In between this hose is a vacuum valve. Vacuum valve has four inlets/outlets on it: 2x for the 1/2" ID hose, 1x for another ~1/4" ID hose from the TB, and then a connection for a vacuum line (3.3mm).

Where does the 3.3mm vacuum line connect to? My guess is it's the 3.3mm brass nipple on the intake manifold, the one closest to front of the car.

Can anyone help? I suppose if I spent 15 minutes I could figure it out by lining up all the other connections...I'm lazy today.

Thanks!
Bean
--
'80 242GT 92k, '94 945T 123k






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