Took her out this morning and tried a few runs down in 1st.....same issues. Now however, I can't get the A/F meter to show rich, now matter how far I adjust the IM screws. Yesterday, I could get it set up fairly rich. This has got to be a fuel delivery problem, and an inconsistent one at that. I'm definetely running lean again, engine getting hot, and dripping from radiator again......Going to try and find a good fuel pressure gage in town today, and tape it to the windshield as some have suggested to check pressure on load. Any chance I could have some crap in the gas tank? I'm going to pull filter and check it later after the beast cools down.....

Thanks for the encouragement guys, I need it......

And NO Brett, I don't want no stinkin' Holley Bush.....

 

hang in there you'll get it

 

like i was say'n before, there's a sock in the tank that may be the root of your problem. or maybe the fuel pump give'n you fit's. filters are cheap, replace it! pump's not to much eather, may want to just replace it too. eliminate them for sure.

 

If you need any help with the sending unit (removal or install) give me a shout.
Later
PM with direction to your house for the CRAWFISH and .... Tunning session.........

 

why not fabricate a make shift fuel tank and line just for checking this out.....a 3-5 gallon gas tank and 6-8' of hose, sitting inthe pass foot well....if the car works well you know its a line gas tank issue....if its the same it may be the fuel pump.

 

Hey bob....are you saying just bypass the pump, and hook this directly to the carb? I actually have a setup like that handy....

Any other Jackson, MS area vetters interested in coming to my crawfish boil, give me a shout, and I'll pm you directions. (We aren't really going to work on my car, got way to many folks coming over). It's this Saturday from 2:00 pm until we run out of crawfish and beer.....(last year crawfish ran out at midnight, and we had a case of beer left, of 23)

 

first time run it through the fuel pump to see if you can eliminate the lines and gas tank...you could only skip the fuel pump if you had the gas tank higher then the carb so gravity would flow the gas down and i don' t know how you could drive it then... however...you probably can buy a cheap electric fuel pump from a local auto parts store and do the foot well set up with the electric fuel pump so you circumvent the old style fuel pump. i actually did this once when one of may cars died on the road next to a trak auto...

 

Did you ever set it up with the 1405 base calibration? If you did, what were the results? The 1406's are really lean out of the box.

 

No I haven't yet Contrail.....It's a different carb kit, I don't think I have the right jets/rods.....but I only looked briefly....

I think I may have found a reason for my weird readings on the AF this morning.....one of the wires got caught up in the steering mechanism and pulled the insulation off of it.....

You vette boys coming to the crawfish boil....YOU AIN'T COMING OUT OF THE GARAGE SATURDAY TO HAVE CRAWFISH AND BEER, UNTIL YOU FIGURE OUT THE PROBLEM!!!!!!!!!!!!!

 

now that ant help'n any!

 

hey just thought of this.....is your vapor cannister disconnected and you are using a non vented gas cap creating a vacuum in your gas tank preventing flow of gas????? next time you take it out take out your gas cap and see if it improves the flow of gas.

 

now why did'nt we think of that before?
way to go bob! bet that's not help'n any even if it's not the problem

 

cause your thinking about crawfish and beer....

 

that's it
can i have a beer now?

 

Interesting thought.....cannister is still there, and I only disconnected any old lines from carb, not source......

I'll try to run it without the gas cap on and see.....ty

 

I didn't have the right ones either, so I did a little math to get close. I uses the .101 jet in the primaries with a 73/47 rod and a .098 jet in the secondaries. Try that and let me know. I'm happy with it.

 

Just a quick note on trouble-shooting. Bobs77vet's suggestion about a make shift fuel tank is a good idea. Even if it doesn't fix the problem it eliminates a possible cause. Anytime you eliminate a possibility, you have less possiblilities left to troubleshoot.
Based on what has been said so far, I don't think a lack of fuel is the issue for the bog. The carb has fuel in the bowl which should be adequate for the split second that you put your foot down. Fuel filters, kinked lines, etc generally will cause a problem when the engine not only needs a more fuel, but also when that amount is to be sustained.

 

Something that happened to me on a 69 chevelle I had was that the short rubber fuel line going from the tank to the steel line on the frame would swell shut when it became saturated with fuel. It would vary on how long it would take for this to happen. The way I discovered it was when my engine started starving for fuel I immediately disconnected the line to the fuel pump and put a dry rag around the filler neck along with an air blower from my air hose. I then CAREFULLY as to not overpressure the tank, pressurized the tank enough to force fuel out the line at the fuel pump where it was disconnected. When it didn't flow out freely I thought it was the sock in the bottom of the tank. So I dropped the tank to change the sock and when disconnecting the rubber line noticed the outside was in good shape but the inside seemed restricted and very soft. Put the piece of hose in a container of gas and in about ten minutes the inside had swelled almost completely shut. This swelling along with the suction caused from the fuel pump sucking, basically closed off the inside of the hose to the point no fuel was flowing from the tank. Also a quick temporary fix to see if the sock in the tank is stopped up is to take the gas cap off and disconnect the fuel line at the fuel pump that comes from the tank. Similar to above take an air hose and shoot some quick short bursts through the line back to the tank. Keep in mind if the sock is stopped up this will blow the sock off or blow the trash away from it long enough to see if this is the problem. Either way if the sock is the problem that means there is enough trash in the tank that the tank should be dropped and cleaned. Another note is if you do this make sure you have a good filter between the tank and fuel pump before cranking the car back up, as the sock actually acts as a filter itself to keep rust or other foreign matter from reaching the fuel pump. If you got any questions about this or need me to explain something in more detail PM me with your number and I'll give you a call.

ltlevil