Starts and dies for first three times
maybe someone can tell me what in the world im missing over here to get this thing to be even remotely back to a stock set up.
i don't appear to have anything related to a "fast idle" screw for my carb.
I am fairly certain i have narrowed it down to be a holley 1945, but of all the pictures i find online none of the brackets match up with mine.
I would love to throw on an electric choke conversion kit onto it and just not muck with a choke ever again, but im worried I will buy it and someone changed some parts around and its just not gonna fit.
anybody know these carbs really well and tell me if im missing parts and/or what i am missing?
the more I look at it the more rigged it seems.
this is the choke side. that wire in the top is the manual choke thats mounted inside the car.
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The fast-idle link rod is missing, so that is never gonna work....... unless you be the fast idle. Here's what you do the next time the engine is cold;
Open the idle mixture screws 3/8 turn (CCW); to a max of 3 turns out.
leave the manual choke off.
Step on the gas two times all the way to the floor, and all the way back up, PLUS one more time for each 10* below zero Celsius.
Put the gas pedal down about 1/4 of the way.
Pull the choke on all the way, then open it so about 3/32inch or 2.5mm gap exists between the blade and the airhorn wall then
Hold the gas pedal there. Don't move it.
Now crank it! and keep the pedal were you set it. Keep cranking; this is a test. Crank until it springs to life and still keep the key in crank. OK wait, if it hasn't come alive after 1 minute give the starter a rest. While yur waiting go see if the accelerator pump is working and if the plenum has liquid gas sitting in it. If it doesn't, then start over with a primed pump circuit.
After it is for sure running, back up the key to run, and now change the rpm to some low rpm like 1000 to keep it running. After two to three minutes you can push the choke off and let the engine idle. After she is fully warmed up, increase the idlespeed to 650/700 for the winter, so you don't have to sit there forever, babysitting the pedal.
OK that was the test.
Depending on how well that worked, you make adjustments to the procedure on every succeeding start, until you get it figured out. COLD slantys will tolerate a lot of liquid gas sitting on the plenum floor, during cranking, as long as you keep the butterfly open far enough and long enough, and the choke isn't slammed up tight. In fact, I think they really like it. I even pour gas into the plenum in summer time, after the car has been sitting for more than a week.
If you don't pull the choke off with two or three shots of gas in the plenum,at above -10*C, you will for sure flood the engine. The cure is to shut the choke off, floor the gas pedal, hold it there and keep cranking. The engine is gonna crank a few seconds and then start firing on one or more cylinders as the plugs dry up; keep cranking, sooner or later it's gonna start firing, then running, and when it does, slowly close the throttle so you don't blow it up.
If you flood it really badly, the ring-seal will go away, and no amount of cranking will dry up the plugs. The only cure for this is to pull the plugs and oil up the cylinders. Put about a half a teaspoonful of engine oil in each hole and let it sit for 20 minutes.You can't put in too much, so don't measure it out,lol. The waiting is for the oil to wick uphill all around the rings. You can't wait too long but 20 minutes should be enough. While yur waiting, clean the plugs and blow-dry them, and open the gaps to .038. After 20 minutes crank out the excess; yeah it's gonna come flying outta there making a horrible mess, but it won't wreck your paint. Then install the dry plugs and start over,but don't pump the gaspedal this time,lol..
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I keep a 500ml plastic bottle of gas tucked away under the hood;with 5% two-cycle oil mixed into it and a lil shot of stabilizer, My starting procedure is this; I glug a shot down into the plenum, get in, put the pedal half way down, and crank until it lights. Then back off the throttle as the rpm comes up; badaboom. The colder it gets the more I glug. Sometimes I get it so right, that the engine doesn't turn even one revolution, and she's singing. When my neighbor sees that old girl spring to life like this he almost freaks.
May the Force be with you.