Is there any advice anyone can offer? I'm a complete newb to this stuff, though I'm learning quick this is one area that is seriously confusing me.

I've seen diagrams, good ones, and they aren't helping much. I have both a Haynes and a Chilton manual and neither of those are helping.

It's a 78 F150 with a 351M

anyways:

http://mil1ion.clubfte.com/FordVacuumDiagrams.html

the part that has all the hoses coming out of it? (cylinder shaped with two arms coming out at an angle I think, mine is blue?) If I'm not mistaken, I think nothing is hooked up on mine. I think there is also suppose to be a hose that goes from the carb to the intake manifold, the end was just sort of sitting in the intake manifold, it doesn't want to stay in place.

I know this is broad and there isn't much anyone can do but I thought it wouldn't hurt to ask. I spent a couple of hours reading old posts and different sites on the internet about it, so it's possible it's just not going to 'click' with me.

I'm not an idiot, I've redone all fuel lines, rebuilt my carb, redone all brake lines and a bunch of miscelaneous stuff.. It was all extremely easy for me once I just started working and did some reading. I'm defintiely learning, though I'll admit that three weeks ago I wouldn't have known how to change my oil.

I don't think I even asked a real question.. so, uh, will someone come to Terre Haute, IN and redo all my vacuum lines for me?

Seriously though, is it really this difficult and confusing? Maybe if someone had some pictures of under their hood so I could see what all the vacuum lines should look like, I'm sure that would help.

Thanks for any advice anyone can offer.

 

"cylinder shaped with two arms coming out at an angle I think, mine is blue"
On the picture you have linked, what is the reference number?

 

I don't see it in the diagrams. Intake manifold vacuum outlet: D7SZ-9A474-B = two ports: -I- This is metal, not plastic.

 

it's the whole vacuum assembly thing that 2, 7, 6, etc either go into or are attached to. If I remember right, it's attached to the distributor?

 

2 arms = 2 vacuum ports (?).

Where does this part mount? To the intake manifold? To the thermostat housing?

 

Is it the vacuum tree that youre asking about? Thats the part that all of the connections ultimately connect to the vac advance for your distributor....the EGR valve and some connections on the carb all connect there...is that the part you are refering to?
-Chris

 

Is this what you're talking about?

http://i25.photobucket.com/albums/c1...f/DSC00889.jpg

 

1973/79 Ford Light Truck Parts Catalog: Illustration = Section 94.1; Page 32

 

Error,

I'm pretty sure you mean the Thermal Vacuum Switch.

It diverts vacuum via a thermal switch from the heat of the coolant.



How about you post the info of the white sticker from the passenger side valve cover

or

tell me which transmission you have in that 78 ?

So I can bring up the actual vacuum routing illustration of your engine.


This is for the 78 351M/Automatic/49 state.

 

I have a C6.. I'm going to try to make it over there today so I can get my vin and any info I need..

you know what, why don't I just take a nice picture of under my hood so maybe you all can tell me what you think? It's almost too simple to not do it.

and 'vacuum tree' sounds right to me for some reason, it just seems like some kind of splitter for all the lines, i dunno. Just let me get a pic and Ill get back to you all

 

The vacuum lines get easy to figure out after you work on it for a while. I was clueless at first, now I figure it all out. It isn't hard. Just identify every part.

If available, print out the vacuum diagram and mark each part and line.

 

Looking...wait for the edit.

EDIT: Here.

 

Wow, those diagrams are the best I've seen yet. I can almost make sense of them..

anyways, got pictures of my truck. It's muddy so it's hard to see anything, I'll go upload them now and post back with the part I'm talking about.

 

https://www.ford-trucks.com/user_gal...id=153906&.jpg

I hope this works.. this is the part I was talking about.

My truck isn't normally this dirty, I just took it through a bunch of mud.. I have some more pictures in my gallery if you need to see more under the hood to tell me just how bad it is.

So what problems will this cause? will it just hurt performance.

Oh, I live in a non-emissions town, they don't care about emissions at all.. so if I can just disconnect stuff that would normally be there for emissions that might hurt performance or make the whole system complicated, I'd rather do that. I don't hate the envrioment but I probably drive this truck a total of 100 miles a year (it's my toy, nothing else)

 

I generaly plug off or disconect all vacuum lines. And leave the PVC, Hydrovac, and Dizzy vacuum. Retune the carb and retime by ear and they run fine. But thats just me. I'm sure I'll catch some slack about this but I'm getting used to it. The main thing is to make sure ya don't have any vacuum leaks and the dizzy is pluged to the port on the carb that has no vacuum at idle. Passenger side bottom front I beleive. Take the smog pump off if it's still got one and just plug off what ya don't need to make it run. That which I said before. Ya need only thous three things hooked up.