Join Date: Mar 2009
Location: Huntsville, Bama
Bronco Info: '78 Bronco XLT - Buck the Truck
Back to running again..
Few updates. I was floundering between the 89$ amazon special and the good old 2100 that I had been running. The 2100 has an irregular fuel fitting in the front that I lost and is hard to find. I had stripped out the threads years ago and got a machine shop to work it in. That carb also has no choke/fast idle/kickdown lever (all crap IDC about), larger venturis,/jets, ran great, lots of power, but I need that stupid inlet barb. huh...
Local race shop, and Lowes was a bust. drove home Defeated...
The amazon carb on the other hand is new, seemed to run great, but it has the smaller venturis/jets. It also has all the crap I don't care about choke/fast idle/kickdow lever. The only problem I really had with this carb is that I had no good way to utilize the choke and get the buttterfly to open up besides just manually adjusting it that way. My truck had the hot air choke tube, which I had removed a while back. I bought a manual choke kit, but decided not to use it. I was about to try the electric choke route, and noticed that the choke unit has a blade for a 12v spade, and started looking for the soldering stuff. huh... need this and that and blah blah, I came across all the old Hot air choke tubes and then decided to try going that route instead.. I blew out the lines (which I assumed were clogged, but they werent), put the air to one hole of the coil in the intake and it blew our the other, so that was GTG. A bit of cleaning and touch up paint, and the hot air choke tubes were on.
Ok, Time to test. Idled up, ran OK, did some tweaking to the low RPM and idle air screws while bringing it up to temp, then a bit more at temp and she runs really good and the choke opens up and works great. It runs great, very smooth, idles great, I'm stoked.
Checking the A/F gauge, it is running right at 14-/15 idle, but cruising around in 3rd or 4th at 1800rpms the AF gauge is reading 10-12. So... I got some more tweaking to do, but I'm on the right track. I will say that it was VERY nice starting with the idle air mixture screws all the way in and watching the AF gauge lean out - shut it off, make AF adjustments and then check again actually seeing good results.
After a while it was idling and running great at temp for about 10 mins while I got ready for a test run. It ran great as expected, but it doesn't quite have the power of the old 2100. I put that out of my head as I did a few doughnuts in the gravel parking lot down the road a ways. THEN IT DIED! CRAP! WTF!
I get out and check under the hood, everything looks normal, except the $10 summit special fuel gaugue I put right in front of the carb. it was on 0. no fuel... hmmm. I'll just walk over to that gas station and fill up my spare jerry can- WTF! Its gone, left on the lawn mower. CRAP! Walk to the gas station grabbed a paper cup and $0.35 of gas. just a capfull down the throat and she fired right up. and I went on my way. Learned today that low fuel and donuts are not a great combo. I made it to a nice place to watch the 2nd half of the Bama game. What a great day!
So.... this has me inspired to jump back in it. I also have shelves in the garage now and more space to get things done. I will be doing some tweaking on the carb (smaller mains), wiring, interior over the next couple weeks and then try finishing parting out the parts truck.
Cant wait to drive this pig to work on Monday, topless hopefully.