engine ???

[fiat218]

how would you tell if the engine is missing or the dual carbs are not set right?
i think it is missing, nothing has been changes since last year

engine idols like it missing. new plugs since 2 years ago, but i aint drove it

[azruss]

If you pop the hood and see a lot of empty space, then your engine is missing. I had a set of dual DCNFs. So each cylinder had its own carb. I would pull the spark plug wire and see if it changed the idle. If it didnt, i would crank up that carb. Check to see if you have good spark on all 4. Assuming your compression is even across the 4, then you are down to fuel.

[fiat218]

If you pop the hood and see a lot of empty space, then your engine is missing. I had a set of dual DCNFs. So each cylinder had its own carb. I would pull the spark plug wire and see if it changed the idle. If it didnt, i would crank up that carb. Check to see if you have good spark on all 4. Assuming your compression is even across the 4, then you are down to fuel.

Ok, thanks, and yes the engine is still there
I do have marks wireless dist, in it, so I know all the wires are new and great, I may change the plugs to just change them
What you mean open the carb? Set screws? I have fresh gas running thru it

[carl]

Turn in the idle mixture screw all the way closed on each carb barrel, one at a time. If the idle does not change for one of the cylinders then you know which one it is. You may just have a clogged idle jet, IDFs do that all the time.

carl

[fiat218]

Turn in the idle mixture screw all the way closed on each carb barrel, one at a time. If the idle does not change for one of the cylinders then you know which one it is. You may just have a clogged idle jet, IDFs do that all the time.

carl

I have done that! One does not make a change , so now what?
U say plugged! Ok so if I screw it all the way out are you saying it might be plug side ! How do I clean it

[BEEK]

jim, first thing, if there is a skip.

1. pull plugs, do a compression test. this will rule out any internal mechanical problem

2. remove distributor cap, look for carbon tracking

3. check plug wires, change them for a used set if you have one to test.

4. isolate the missing cylinder, you can do this by removing 1 plug wire at a time and see where the change comes, or if you have a infared heat gun, check the exhaust temperatures at the head / manifold area, the cool one is the misfire.

5. i am assuming this is a carb'd 2000. there are many potential vac leaks. but a vac leak will effect all cylinders the same.

after you check these things let me know

[BEEK]

oops you have the distributorless ignition, you need to recheck all the settings there to make sure timing is correct. also makes ure you check the firing order

[fiat218]

If you turn in the Idle mix screw and it does not change the engine idle, what does it mean.. When the others make a differnce

[fiat218]

oops you have the distributorless ignition, you need to recheck all the settings there to make sure timing is correct. also makes ure you check the firing order

All that was set from a mechanic, so that has never changed

[BEEK]

did it run good first? than started to run poorly? how did it happen,

[toplessexpat]

Ok - I'm going to very unhelpfully say....

I do have marks wireless dist, in it

... I've got to see that.... Is there like a little antenna on the top of each plug? It would really clean up my engine bay to have that

[fiat218]

did it run good first? than started to run poorly? how did it happen,

If you don't beat the shit out of it, then it purrs right along, once you open it up then it acts up

[fiat218]

Ok - I'm going to very unhelpfully say....

I do have marks wireless dist, in it

... I've got to see that.... Is there like a little antenna on the top of each plug? It would really clean up my engine bay to have that

My bad,

[BEEK]

did you replace the mechanical fuel pump? recently, like just before this problem?

[fiat218]

did you replace the mechanical fuel pump? recently, like just before this problem?

Electric. As I was reading I will have to see how much psi it pushing,
This car came this way, I got it from California just the way it ran, other then add the distributer from mark