Sudox_E

Well, I didnt really plan on this being a very enlightening thread, but I'm new to carbs in general, and had a few questions.

First off, what does 4 run to?
Im removing the rats nest, do I ahve everything capped off correctly?
Can I remove the shutter valve? As you can see the linkage was broken anyways, and I'm not too concerned with fuel economy at this point. Would there be any problem with just taking off the shutter valve and the little plate inside the primary and filling in the holes with jb weld?
I've read the rats nest removal tutorial, but im still somewhat confused as to where 1, 2, and 3 run to, maybe you could help me with that... Onto the next picture



I know that 7 is the AP, but what is 6 and 8?



I assume 1 and 4 are choke related. I dont use the choke very often, would there be anything wrong with removing these components and capping off where I removing the vacuum lines?

Also, what is 2 and 3, and what purpose do they serve?

Lastly, where is the vacuum control box for the secondaries? Im planning on converting to mechanical secondaries. Anyways, thanks in advance to anyone who helps me. Im new to all this, and Im having trouble figuring it all out.

sudox_e

Suparslinc

I don't really know a single thing you are pointing to.

With that said, I'm guessing 1 and 2 are your OMP (oil metering pump) lines. These are the two translucent lines that run up from the bottom of the engine block.

3 is a vacuum line that runs to the rats nest. You should have a sticker on the inside of your hood to illustrate it's location; I can't be specific on what it does without consulting the diagram myself.

4, 6, 8, 2, and 3, I have no idea. Most of these components are plunger operated and should not fail, or, if they do fail, are easy to repair or replace.

Now that I've answered the easy ones, some of the carb experts will hopefully add to this and correct my mistakes.

Sudox_E

sorry if its not clear, the numbers correlate with the red circle their closest to.

V8kilr

1,2,3,5 all go to the rats nest, I believe 4 does as well but it maight go up to the air box.

also the piece you have wired up next to 2 can be disconnected and removed, just take the carb off the manifold and remove the butterfly in the manifold.

I'm skipping 6,7,8,

number 2 in your third pic needs to be plugged.

behind number 7 is where you will find your vacuum daiphram for your secondaries

we need sterling in here

Sterling

"First off, what does 4 run to?"

4 runs to the PCV valve. You should retain that system as it purges the crank of water, gasoline, and exhaust vapors.

"Im removing the rats nest, do I ahve everything capped off correctly?"

You'll know if you can idle correctly!

"Can I remove the shutter valve? As you can see the linkage was broken anyways, and I'm not too concerned with fuel economy at this point. Would there be any problem with just taking off the shutter valve and the little plate inside the primary and filling in the holes with jb weld?"

Yes, you can remove it. Backfiring may result. It serves to close off vacuum ports for that side for the rats nest as well.

"I've read the rats nest removal tutorial, but im still somewhat confused as to where 1, 2, and 3 run to, maybe you could help me with that... "

#s 1 & 2 go to the ignition advance pots on the distributer. (...I believe- it's been a while, I run advanced locked timing.)
#3 I'd have to look up, but I think goes to the rats nest.

"I know that 7 is the AP, but what is 6 and 8?"

#6 is the altitude compensator. Just cap everything to it. You could remove it and JB the holes on the carb horn.
#7 is NOT the AP; It's the vacuum secondary box.
#8 is a vacuum dashpot for the choke. Yank it.

"I assume 1 and 4 are choke related. I dont use the choke very often, would there be anything wrong with removing these components and capping off where I removing the vacuum lines?"

Yup- yank 'em.

"Also, what is 2 and 3, and what purpose do they serve?"

#2 is the AC idle compensation valve. It bumps up the idle to compensate for the drag on the engine by the air compressor pump.
#3 is the decelleration dashpot. You should leave that. It acts as a shock absorber to let the throttle close down to idle slowly. I don't have mine on. Best for you to adjust it all the way till the button does'nt make contact and see if you like it that way. If you do, yank it.

"Lastly, where is the vacuum control box for the secondaries? Im planning on converting to mechanical secondaries. Anyways, thanks in advance to anyone who helps me. Im new to all this, and Im having trouble figuring it all out."

#7 is that box.

Don't toss anything. Save it...at least the dashpot and vacuum box for the secondaries. These are good things to have kicking around the spare parts box.

Sudox_E

Thanks a lot, that was EXREMELY helpful. I had originally thought that #7 was the vacuum box, but I was getting all my info from very tiny back and white pictures from the haynes manual. Anyways, Im gonna take another stab at it, and im gonna say.. the AP is right above the shutter valve, and has 4 screws, 3 of which are exposed in picture number one?

vipernicus42

iTrader: (4)

bling bling bling.. tell him what he's won!

or am I wrong too?!? :P

hehe
Jon

Knightdulac

I found a site that is great for what U are doing.

There is the free and a donation for a to print issue.

Follow or copy and paste link .. Its a great thing and worth a donation

http://maz_tutorials.totalimmage.com/

Pedestrian X

STERLING TO THE RESCUE! haha

pratch

Thanks for the pimpage, Knight - he already read the tutorial (he mentions it somewhere in the middle of all that text).

The biggest problem is that we tried to make our tutorial easy-to-read for the layman which means that we don't have a drawn-out diagram labelling every component of the carb/emissions.