Slant six 1920 stall
Closest thread to my problem so thought Id tail on, sorry.
Ive been ironing out problems on the 63 dart 225. I installed a Super Six setup with a holley 2280 Id rebuilt a few years ago.
Got it where it is running very nicely but cant seem to get it to go to idle when stopped at stop signs or lights or stopping quickly even when warmed up well.
Ive raised idle up a half turn and now its up to 1500rpm or so and still happens, high enough that when I put it into D, it wants to take off.
Any thoughts on this? Check the solutions up above?
Thanks.
> make sure your fuel tank is venting.
>If you have a PCV system, make sure that it is fully functional.
>If you don't have a PCV system, but your carb has the port, then it was designed to run one.... so you will need to plumb one in. If you don't, the carb will NEVER run right.
>If you have a brake booster, pinch the line off for testing.
>Also for testing; Disconnect the Vacuum line to the Distributor and Plug the carb port.
>Reset your float level to the factory spec. I recommend you pressure test yours to 4.5 psi; it must hold at 4.5 for at least a minute. Longer is better.
>Retard your timing to between TDC and 5* BTDC.
>Put the mixture screw(s) to "in the center of their range" usually about 2T from lightly seated.
>Start it up and reset the idle to 500 in gear, which should be no more than 600 in Neutral. If it won't idle down there,see
note-1, then warm it up again, and see how it idles.
<If it runs good, try some different mixture screw settings and yur done.
<If it runs good for a while then stalls; this will be a fuel-delivery problem. You will have to figure out if it is flooding or if it is running out of fuel; see
note-2
Note-1
If it won't idle at 500 in gear; you will have to figure out , firstly if the TC is seized.If the TC is OK, then; if the engine has; a fuel problem, an air problem, an ignition problem, or a mechanical problem.
So the first thing I would do is; warm it up, then reset the valve lash to minimum .013 on the intakes, maximum .023 on the exhausts. But make sure you use narrow feeler gauges no wider than the valve stems. While the covers are off look for bad valve springs and bent pushrods.
note-2
First check the venting; if good, then do a fuel-delivery test. If good then move to the float-valve and the low-speed circuit.
note-3
If has an idle misfire, and has points, dress and clean the points. If it still misfires, replace the condenser. If it still misfires and twiddling the mixture screw does not improve it, then go look for vacuum leaks. If none found and still misses, then do a compression test. If compression is even on final, and every compression cycle is strong from the get-go, then replace the plugs. If still misses, replace the gas. If still misses do a leakdown test. If that shows good then check for bad valve springs. If still misses; IDK so I'm done.
