Car Dies After start

[Brutus]

1.start car
2. grunting sound plays (dont know if this is just the engine starting though)
3. rpms will raise only to lower directly after

Carburator is tuned to 14.5 and will be a little lower before starting, but raise after. I can rev the engine and even manage to drive it sometimes.
In neutral it will die on its own even while holding the clutch down after starting engine.

TLDR=After starting the car It will shortly stall and die.

[Randox]

Pull out the choke and let it warm up. Oh, and if the mix Guage says 14.5 right after starting with the engine still cold, your engine is dangerously lean and that's why you need choke (14.5 is alright once the engine is warm, but if it's at that level while cold it's going to lean out to like 20 and catch fire. A well tuned engine set to run a bit lean will be around 7 when it first starts).

[Brutus]

Originally posted by Randox:

Pull out the choke and let it warm up. Oh, and if the mix Guage says 14.5 right after starting with the engine still cold, your engine is dangerously lean and that's why you need choke (14.5 is alright once the engine is warm, but if it's at that level while cold it's going to lean out to like 20 and catch fire. A well tuned engine set to run a bit lean will be around 7 when it first starts).

Okay, I set the ratio to 4.9 pre start and notice that the engine is still having problems. I noticed the fan belt wasnt installed and managed to add it, but that didnt fix my problems

[BirdDog]

Had the same issue .

I towed my car to repair shop and let set valves .

[Randox]

Cold engines aren't happy.

Since you just added the fan belt, that needs to be set. To start, adjust the alternator so it is visibly touching the belt. The engine will squeak when it starts. You'll adjust it properly later, once the engine is idling on its own.

Your next job is to get the engine warm without killing it. Choke can make the engine easier to start and help it idle. Note that choke is not all or nothing. Too much choke can prevent the engine from starting at all by flooding it with too much gas. Start with choke pulled maybe halfway out, or even a bit less. Be prepared to give the car a few taps of the throttle once it catches to prevent a stall. You want to keep the RPM between 1,000-2,000 for a few seconds, then push the choke in a bit. If the RPM drops low and the engine sputters or dies, play with it: it might need more choke, it might need less. You might need to tap the throttle a bit longer to get the engine a little warmer before it can self idle.

If/when the engine can run itself in neutral, go fix the fan belt while the engine is warming up. The alternator should be loosened just to the point the belt stops squeaking.

Values and carb should be done once the engine is warm (temp gauge at about the middle). With all this trouble, you're values are probably really bad. Note that they may not make any sounds until you adjust them, so do check all of them. Don't forget to turn the choke off before setting the carb.

Also, the mix guage is lying. With all stock parts a mix of 15 or more will probably kill your engine; quickly. Aim for anything from 12.5 up to about 14. Play around with it.

[cranlet]

i am having this problem right now