Vaccuum Hoses Galore.. vs new Carb?

[North Central Ohio]

I tried to figure out how to put a pic on here....I THINK I figured it out,but not sure.lol. The only thing i think I have figured out is the "Mona Lisa" icon... yep...that's it. How would I do it? Fyi,i didn't take the pic yet.

[srozell]

I'll take a look tomorrow morning where you describe. I've got a feeling mine has been removed. Is it belt driven?

[North Central Ohio]

No belts involved.

[srozell]

Ok, thank you. I got distracted today putting a 4" lift on the truck and forgot to look!

I'll get there... eventually.

[srozell]

I went out to my shop to check on something, and so I looked under the hood and I don't see anything where you describe it.

I'm sure the previous owner removed it.

I'd love to see a pic, but the closest thing I have to pictures on my phone is call-display. Old school I know.

[jrbarrie83]

The only thing I can't seem to figure out is what the DVTR Valve/ A.I.R. pump is that is referred to on the right.

It is totally possible that the previous owner removed it, so a picture would be nice, if possible.

The AIR pump is just that, a mechanical pump that generates air flow to your exhaust manifolds, air cleaner, catalytic converter, etc. It's only necessary if you're concerned about emissions. This is a hose that could simply be plugged. The vacuum line is going to the Diverter Valve (DVTR) that determines where to send the air flow based on engine operation. Since you don't have any of this setup, just plug the line, no harm done.

I, too, am a big proponent of keeping everything under the hood as close to stock as possible, but there are a couple things that really don't do a whole heck of a lot towards performance and this is one of them.

[srozell]

Thank you for that. The hose is currently plugged because I had no other choice, I guess I'll just shorten it and leave it plugged then.

[haroldwca]

I know this is an old thread, but most of the opinions seem to be leaning one way, and I thought I would weigh in from the other side.  I am also a proponent of keeping things original, but if value is not a factor, I am an even bigger proponent of keeping things simple.  The owner has stated that he will never have to pass an emissions test.  He has also stated that at least some amount of the of the equipment is already missing.  It sounds like a candidate for removing all the plumbing that is not necessary for the engine to run effectively.

On my '85 C10 I was experiencing multiple vacuum leaks from the old vacuum hoses, lines, and connectors.  I tried for a while to maintain all original connections, but it seemed as though every time I worked on the truck, I would accidentally break off another brittle, hard-to-find hose nipple.  I finally decided to remove as many emissions related hoses and lines as I could.  I also replaced the Quadrajet with the electrically controlled solenoid (passenger side front corner) with an Q-jet M4ME from a '77 small block pickup.  I haven't regretted it.  Yes, I have blocked of a number of ports on the carb and the manifold.  Yes, I know that someone designed it to operate with all the hoses in place.  No, I do not think I know more than the engineering team at GM.  What I have gained from doing this is to assemble a reliable, efficient engine that allows me the access I want and the reliability that I need.  Effectively, my setup is functionally similar to the setups produced before all the vacuum operated emissions equipment was introduced.

[VileZambonie]

Like anything, you should have a well thought out plan with an end goal. The path you take to get you there may involve straying far away from the factory if it's not conducive to your plan. In my opinion, if you have a system that has been butchered throughout the years, catalog pics, box everything up and get to work cleaning up the disaster area. If not for any other reason there may be others looking for those emissions parts that could use them so never trash them or save them in case you want to sell them with the truck some day.