Need help with vacuum lines
Thread Starter
|
Senior User
Joined: Feb 2005
Posts: 132
Likes: 0
Need help with vacuum lines
I recently purchased a 1985 F150 4x4 351W for use as a beater truck. The previous owner pretty much didn't know what he was doing and managed to put a passenger side caliper on the drive's side causing the brakes to be inoperable. He also had a friend install new valve cover gaskets. In doing so, it looks like almost every vacuum line was disconnected and cut off. The climate control is currently defaulted to defrost and I assume that it has been disconnected also. Any help ya'll could send my way would be GREATLY appreciated!!
Does the PCV valve connect to the line plugged with the bolt?
Vacuum line routed back to carb
What would the line plugged with the orange plug be connected to?
Does the PCV valve connect to the line plugged with the bolt?
Vacuum line routed back to carb
What would the line plugged with the orange plug be connected to?
Moderator
Joined: Jan 2001
Posts: 56,977
Likes: 2,733
From: Virginia
Does the PCV valve connect to the line plugged with the bolt?
yes
Vacuum line routed back to carb
That loop looks like the warm air system for the choke. The top fitting had a line that ran down to the exhaust manifold where they had a little "heat stove". Then a line ran from the heat stove back up to the lower fitting. This would draw warm air into the choke chamber and make it pull off.
What would the line plugged with the orange plug be connected to?
Does that line go over and is hooked up to a vacuum can and also tees into a line that runs through the firewall on the pass side? If so, that is your HVAC line, and it needs to hook to manifold vacuum. The factory had a plastic tree on the firewall behind the carb that this was originally hooked to, and the tree was fed with one line from the intake manifold. if you don't have the tree anymore, you could just run it to the manifold behind the carb.
yes
Vacuum line routed back to carb
That loop looks like the warm air system for the choke. The top fitting had a line that ran down to the exhaust manifold where they had a little "heat stove". Then a line ran from the heat stove back up to the lower fitting. This would draw warm air into the choke chamber and make it pull off.
What would the line plugged with the orange plug be connected to?
Does that line go over and is hooked up to a vacuum can and also tees into a line that runs through the firewall on the pass side? If so, that is your HVAC line, and it needs to hook to manifold vacuum. The factory had a plastic tree on the firewall behind the carb that this was originally hooked to, and the tree was fed with one line from the intake manifold. if you don't have the tree anymore, you could just run it to the manifold behind the carb.
Thread Starter
|
Senior User
Joined: Feb 2005
Posts: 132
Likes: 0
Franklin2, Thanks!
The line going to the vacuum canister and climate control is sitting, unconnected, on the pass side of the carb. (second photo shows it best). I had someone else postulate that it might have been connected to the air pump(?).
The line going to the vacuum canister and climate control is sitting, unconnected, on the pass side of the carb. (second photo shows it best). I had someone else postulate that it might have been connected to the air pump(?).
Thread
Thread Starter
Forum
Replies
Last Post
Ford_86
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
39
Jun 20, 2012 07:55 AM
glovemeister
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
21
Dec 1, 2010 11:03 PM
viking89
1999 - 2003 7.3L Power Stroke Diesel
28
Jun 23, 2010 04:50 PM
