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Carburetor
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- Carburetor Installation
Before you start, take a look at our base gasket. That’s our old one, this is our new one. If we had to reuse this base gasket it would be all right but we’d have to get the position perfect or we’d risk a leak. Since we had the new one, we replaced it.
One more thing...this is the base insulator. This is where the intake manifold ends. The insulator is there because you’ve got to have something to hold the heat down in the engine. If your heat goes up too high in the carburetor, your fuel will boil. Finally, always lube the threads before you start. Then, the nuts will start and you won’t get cross-threaded. Now, center the carburetor.
- Materials:
Wrench, Lock washers, Mixture screws
- Steps:
- Center the carburetor and add a drop of lubricant to the studs. Be sure to use lock washers on the studs and tighten the nuts, first by hand. Then use a wrench in a cross pattern from each stud to tighten it evenly, about 18 pounds of torque.
- Put your nuts on. Pick up the threads by hand. As you tighten these down with your wrench, work in a cross pattern. This is the little stuff that counts so much. The details are what makes the difference between a car that just runs and a car that is really nice and responsive.
- If you’re going to have your manifold open for any amount of time always cover your bores going down the manifold. You don’t want any debris dropping down there.
- Hook your throttle linkage and choke linkage up. Both of these are adjustable. We liked our choke adjustment, so we left it alone. Secure both linkages with cotter pins.
- Check your linkage. This is critical and a step a lot of people miss. You want it for two reasons. You don’t want this sticking when you floorboard it. If your butterflies are all the way open at full throttle, this is what you want.
- Fill your carburetor with fuel by delivering from your fuel pump. Out of gear, spin the engine a few times to deliver the fuel and fill the carburetor and check your accelerator pumps.
- The next thing you want to do is to confirm that your accelerator pumps are working. We stroked ours a couple of times and gave it two blasts of accelerator pump gasoline in the bore so that it was staying down at the bottom of the manifold. This should start first cylinder up when the switch is turned on.
- Set your mixture screws.
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