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+--- Thread: IP vacuum ports (/showthread.php?tid=287)
IP vacuum ports - Gasoline Fumes - 03-20-2009
Could someone tell me what the different vacuum ports on my '85 IP do? I pulled all the vacuum stuff out and want to start from scratch and keep it simple. I understand the ALDA, but why the two connections on it? I can eliminate one, right? Which is the shutoff? I have a diagram, but it doesn't show everything and it certainly doesn't tell me what I can remove.
RE: IP vacuum ports - winmutt - 03-20-2009
A is boost to ARV
B is boost from manifold
E is shutoff valve i think (not sure where it goes.
C is vac vent from cabin
D is either from the main vac line or to the trans cant remember.
RE: IP vacuum ports - ForcedInduction - 03-20-2009
That is right. A and B can be combined into 1 port.
RE: IP vacuum ports - Gasoline Fumes - 03-21-2009
Thanks!
RE: IP vacuum ports - winmutt - 03-21-2009
A makes a handy place to pull boost signal for gauges IF you have no leaks. Otherwise it is a REALLY bad place to leak...
RE: IP vacuum ports - Gasoline Fumes - 03-28-2009
Why is a leak there really bad?
RE: IP vacuum ports - winmutt - 03-28-2009
If you leak to the ALDA you will lose fuel.
RE: IP vacuum ports - Gasoline Fumes - 03-29-2009
That's what I thought, but "REALLY bad" made me think something worse would happen. Like mechanic damage or something.