Vacuum line nightmare
Thread Starter
Burning Brakes
Joined: Jun 2004
Posts: 936
Likes: 0
From: Tulsa OK
Vacuum line nightmare
My vacuum lines look like they were done by a blind monkey on acid.
Right now the headlights are sliced off the brake booster line which comes out of the intake behind the carb. That branch splices off again and goes into the cabin and down to the headlights. There's no check valve in site. Now from what I can tell, the brake booster should be on it's own line and the headlights should be coming out from somewhere else, with at least one 2 to 1 check valve spitting the two off (Although I've seen some cars with what looks like a second check valve closer to the vacuum source.
The port on the manifold has only a since end on it. Is that supposed to have two or is the headlight hose supposed to source from some other port?
The other thing that bothers me is that the vacuum line going to the AC/heater vent control is sliced off of the vacuum advance. That can't be good.
Can someone set me straight?
Right now the headlights are sliced off the brake booster line which comes out of the intake behind the carb. That branch splices off again and goes into the cabin and down to the headlights. There's no check valve in site. Now from what I can tell, the brake booster should be on it's own line and the headlights should be coming out from somewhere else, with at least one 2 to 1 check valve spitting the two off (Although I've seen some cars with what looks like a second check valve closer to the vacuum source.
The port on the manifold has only a since end on it. Is that supposed to have two or is the headlight hose supposed to source from some other port?
The other thing that bothers me is that the vacuum line going to the AC/heater vent control is sliced off of the vacuum advance. That can't be good.
Can someone set me straight?
Le Mans Master
Joined: Jan 2006
Posts: 9,192
Likes: 27
From: Boca Raton Florida
My vac fitting on the manifold is a T. The Vac booster is on one port, another port comes off to a checkvalve as you stated, the other one goes to the cabin. One leg of the checkvalve feeds the vac reserve can up front and that feeds the valves and actuators.
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