1982 Bronco Vacuum Hoses
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1982 Bronco Vacuum Hoses
Does anybody have a good diagram or description of vacuum hose routing on a 1982 Bronco 302? I've got both the Haynes and Chilton manuals, but they are both very unclear in terms of vacuum routing. Any help or resources would be great.
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Joined: Feb 2006
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From: Vallejo, CA
Have you found any good diagrams (or pictures?) I have an 83 w/351W that I have a couple hose routing questions... Stupid me didn't label them when I rebuilt the heads... 
And it's running rough... I don't think I have any leaks but I may need to recheck the valves...
And it's running rough... I don't think I have any leaks but I may need to recheck the valves...
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Junior User
Joined: Feb 2006
Posts: 57
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From: Vallejo, CA
Thanks, that is a great site!
A couple questions,
1. To help trouble shooting, I want to plug all vacuum lines at the source that could possibly have a potential leak. Which ones should I plug? The "tree" at the rear of the manifold, what else?
2. It seems like not all cylinders are firing. I pulled a couple plug wires and there was no change in idle. I also don't trust the wires so I'm going to get new ones. Long story short but if I'm 180 degrees out on the distributor, would it fire on 4 cylinders or not at all? I'm positive my firing order is correct.
I forget what system it is but I have the one where you can't adjust for timing.
This is an 83 Bronco 2bbl w/351W.
Thanks for your help!
A couple questions,
1. To help trouble shooting, I want to plug all vacuum lines at the source that could possibly have a potential leak. Which ones should I plug? The "tree" at the rear of the manifold, what else?
2. It seems like not all cylinders are firing. I pulled a couple plug wires and there was no change in idle. I also don't trust the wires so I'm going to get new ones. Long story short but if I'm 180 degrees out on the distributor, would it fire on 4 cylinders or not at all? I'm positive my firing order is correct.
I forget what system it is but I have the one where you can't adjust for timing.
This is an 83 Bronco 2bbl w/351W.
Thanks for your help!
Mountain Pass
Joined: May 2005
Posts: 101
Likes: 2
From: Iowa Park, TX
If by 180 degrees out on the distributor, you mean that when you align your timing marks, the rotor points to #5 in the FIRING ORDER (which might not be #5 cylinder) then, if memory serves me correclty, you are ok on the distributor, You just have to use #5 FIRING ORDER cylinder for your timing light instead of #1 cylinder. #1 and #5 in the firing order fire 180 degrees from each other, theoretically.
If you remember which plug wires you pulled, I would pull the plug, hold my finger over the plug hole and bump the engine over. If the valves are adjusted correctly, when it reaches top dead center, the compression will "push" you finger off of the sparkplug hole.
If it is idled waaaay high and pull 1 wire at a time, there may not be much of a noticable decrease in RPM's.
I have an 83 with a 351w and I can adjust the timing; I wasn't aware of an 83 year model where you could not.
I
If you remember which plug wires you pulled, I would pull the plug, hold my finger over the plug hole and bump the engine over. If the valves are adjusted correctly, when it reaches top dead center, the compression will "push" you finger off of the sparkplug hole.
If it is idled waaaay high and pull 1 wire at a time, there may not be much of a noticable decrease in RPM's.
I have an 83 with a 351w and I can adjust the timing; I wasn't aware of an 83 year model where you could not.
I
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