Carb problem.... I think.

[sweetpeet]

I think I have a carb problem. I have an amc 360, eldebrock intake mani, and eldebrock carb 4bbl. This has all been recently set up and I'm running into problems with the carb(I think, I'm not really sure). What is happening is that I can only push down on the gas pedal half way before it starts back firing and what seems like flooding. Which I think is odd because it font think it is tuned too rich, I have each seat tuned to 2.25 turns.
However, now that I think about it, it may actually be too rich.

What do you guys recommend? I'll take any advice I can get!

Thanks ahead of time!

 

[Turbogus]

'Betty' my '78 CJ5 had a 'Carter AFB' clone Edelbrock when I first got her. I had similar problems but, like the AFB, the screws in front are not mixture screws, rather they're secondary air bleed screws. To change the mixture you'll needs a 'jet kit' that comes with metering rods, springs and jets. Using the correct spring, rod, and jet will yield better carburateion. A chart is available on the Edelbrock website to help detirmine the combination nesessary, but after I replaced that clone with my old 'real' AFB, I went a little leaner and it hasn't had any problems since. Good luck.

 

[sweetpeet]

I increased my throttle and I can now do cold starts more easily. But I haven't tested it for the prob I previously described but I'll test it tomorrow. Just wanted to give you a update!

 

[sweetpeet]

Any other advice? When I put my foot down on the gas it kind of sounds like it's all under water, like that king of gargling.

 

[superj]

is your trans kicking down like it should be?

 

[sweetpeet]

is your trans kicking down like it should be?

I have a manual 3-speed. what do you mean by that??

 

[SteelHeadz]

Timing is good?, vacuum advance on the distributor could also be an issue although it would be more sluggish than it would be gargling on the carburator. When you set the idle screws and the timing make sure the engine is at its normal operating temperature, not cold. It makes a huge difference.

 

[sweetpeet]

Timing is good?, vacuum advance on the distributor could also be an issue although it would be more sluggish than it would be gargling on the carburator. When you set the idle screws and the timing make sure the engine is at its normal operating temperature, not cold. It makes a huge difference.

Im sure the timing is right, I'm going to double check the firing order. Also I did adjust the seats and the throttle while cold, so I'll have to change that.

 

[sweetpeet]

nm i was wrong about the firing order ........so ill undo what i just did, tomorrow.

 

[superj]

ha ha ha, don't worry about it. every single person has put the wires on wrong once or twice and not caught it till later on

 

[sweetpeet]

ha ha ha, don't worry about it. every single person has put the wires on wrong once or twice and not caught it till later on

no this wasnt a thing where I was guessing. I was looking at a diagram with a left bank and right bank but i guess i mixed it up.

 

[elevatorman]

what????? the firing order is not 1-2-3-4-5-6????????

 

[sweetpeet]

what????? the firing order is not 1-2-3-4-5-6????????

Wow duh

 

[sweetpeet]

Timing is good?, vacuum advance on the distributor could also be an issue although it would be more sluggish than it would be gargling on the carburator. When you set the idle screws and the timing make sure the engine is at its normal operating temperature, not cold. It makes a huge difference.

So you think its 100% carb issue?

 

[SteelHeadz]

So you think its 100% carb issue?

Absolutely not. I'm saying that it could be. Did you correct the firing order on the distributor?. Reverify all the basics without the guess work and it might turn out to be something simple.

 

[sweetpeet]

Absolutely not. I'm saying that it could be. Did you correct the firing order on the distributor?. Reverify all the basics without the guess work and it might turn out to be something simple.

Well, I'm not really sure where 8th cylinder firing point is on this distributor because it doesn't match the diagram I have. Ofcourse my diagram is of a amc 304 but I'm not really sure if the hei will match to the distributor in the diagram. Do you know if it does? Can you show me where your 8 is on your hei?

 

[superj]

pull your number one plug and put your thumb over the plug hole. rotate the engine until the copmression in the cylinder pushes your thumb off the spark plug hole. open your distributor cap. the way the rotor is pointing is number one. from there, put the wires on in the order the book says and your good.


maybe when the distributor was swapped, the rotor wasn't aligned right. won't make any trouble except the spark plug wiring picture will be wrong in the book.

 

[sweetpeet]

pull your number one plug and put your thumb over the plug hole. rotate the engine until the copmression in the cylinder pushes your thumb off the spark plug hole. open your distributor cap. the way the rotor is pointing is number one. from there, put the wires on in the order the book says and your good.

maybe when the distributor was swapped, the rotor wasn't aligned right. won't make any trouble except the spark plug wiring picture will be wrong in the book.

Ummm that's getting so much more in to it than I want lol. I'm going to just undo what I just did haha

 

[SteelHeadz]

Get a black marker handy. With #1 at top dead center, remove your distributor cap and mark the location of the rotor tip to the distributor cap. That mark should point to the #1 spark plug wire. #1 cylinder is on the driver side front and #8 is on the passenger side rear. I have oriented my HEI vacuum advance facing the radiator to give me enough room for timing adjustments. Here's a diagram i got from a site.

Firing Order AMC 360cid : 1-8-4-3-6-5-7-2
Distributor Rotation : Clockwise
Drivers Side cylinder numbering (front to back) : 1 3 5 7
Passenger Side cylinders numbering (front to back) : 2 4 6 8

 

[sweetpeet]

Get a black marker handy. With #1 at top dead center, remove your distributor cap and mark the location of the rotor tip to the distributor cap. That mark should point to the #1 spark plug wire. #1 cylinder is on the driver side front and #8 is on the passenger side rear. I have oriented my HEI vacuum advance facing the radiator to give me enough room for timing adjustments. Here's a diagram i got from a site.

Firing Order AMC 360cid : 1-8-4-3-6-5-7-2
Distributor Rotation : Clockwise
Drivers Side cylinder numbering (front to back) : 1 3 5 7
Passenger Side cylinders numbering (front to back) : 2 4 6 8

I remembered where one of the wires were and I just worked from there. I'm back to square one. I have the deep gurgling and back firing when I press more than 1/2 way down on the gas. Also now I have a new symptom, the engine when wide open quits at 4 rpm and sometimes pick up around 1 rpm but when I step on the gas again it completely quits.