Carbies Suck

[georgeb]

I'm within a day or so of buttoning up this marathon head R&R. If successful, I will be one of the few to remove a feedback carb and replace it with all the hoses hooked up. The setup is ridiculously complicated, with almost 30 components with plumbing and/or wiring. There are four hoses on the bottom back of the carb that I had to cut to remove. I tried marking the hoses with a clothespin but some I couldn't. With the help of my carb manual I got everything hooked up except for one hose coming from a T to the right of the carb. The carb itself is difficult to remove and install. It requires a swivel socket for one of the nuts and the nuts must be glued to a socket to reinstall. And the FICB linkage is hard to disengage when removing and installing causing the carb base to grind against the studs creating a bunch of shavings. I had to loosen the diaphram nut but can't retighten it with the carb installed. Also the vac diagram is worthless, not even remotely resembling what you see on the car.

[htchbck]

You just needed the right tools.

[drumnerd33]

lol yeah gotta love the spaghetti mess of vacuum lines... I actually had it all figured out but decided to just swap to the weber for more power and ease of use. I have to say i really like my weber.

[georgeb]

You just needed the right tools.

I have them now! I would like to see a vac diagram that represents what you see under the hood.

[Twistiva]

You just needed the right tools.

So what kind of special tools do you need?

[htchbck]

Never needed any special tools, per-se, just having a large selection is helpful. 12mm wrench can mean many different things, and I own one of each lol. If one doesn't work, I go to another

[Lannis]

"Carbies suck"!

Well of course they do. That's how they WORK, via the "venturi effect". We knew that already .....

[georgeb]

I didn't need anything special. Just a 12mm swivel socket for one carb nut. I was unable to start that nut with the impact swivel I borrowed. I need a narrower one. The main problem is all the lines and tees some of which are brittle and hard to reach.

[htchbck]

I guess it just made a bunch of shavings because you were using the proper tools then.

[georgeb]

Something else that has to be dealt with on a carby head job is valve adjustment. Twice. Once after installing the rocker shafts and again after it warms up (they must be adjusted warm). I found a way to trace vac hoses using that worthless vac schematic. Identify the remaining components on that circuit then consult the schematic to see what's left. The schematic didn't show the orphan hose however. I plugged it. It is straight manifold vac.

[georgeb]

It runs! But I cancelled the tags in Jan when I retagged my '93 which is down with no compression. Tomorrow it's supposed to be 60 something so I think I will pull start the '93 to see if it runs at all. I have a backup motor but a leak test shows it leaks air in two cylinders. I might swap it in anyway and rebuild the '93 motor.