really rich on right side idle and blowing smoke..

[F 150Cobra]

on the driver side it idles and does not smoke.. on the pass side it idles and blows smoke ( black smoke ) rich ?

the carb is tuned and timing is set..

its a holley 650 Dubbel pumper

68 primary 78 secundary


air idle mix screws are set and floats are set.. why does it smoke this badly ?? only from the right side ( pass side )

 

[smokey]

Have you pulled the plugs to see what they look like. Are the plugs on the passenger side all firing?

 

[countryboytn]

Have you pulled the plugs to see what they look like.

Pull the plugs and get us some pics of them.

I used to have a bookmark of what plugs look like when under certain conditions (right, rich, lean, ect) maybe somebody else has a link to it..

 

[F 150Cobra]

allright.. wait a few mins ill do it..

 

[F 150Cobra]

ok first pic from left to right 5,6,7,8 ( nr 8 is wet )

2nd pic is nr 1 cyl... Dry and 2,3,4 is the same they are a little less black than the other side of the engine..

 

[smokey]

on the number 8 plug do you have spark to it.
What are the compression numbers for #8 is the valves seating all they
could be as simple as a bad plug or wires.
It is running rich from the looks of the plugs but this could be left over from tuning in the carb and just haven't burnt off yet

 

[blackhat620]

Remember, black smoke means "Incomplete Combustion" so your carburetor could be set correctly but you are not getting spark, to little spark or spark at the wrong time. More than likely since it is only on one side of the engine, I suspect you are not getting sufficient spark to some of the cylinders. Check all your plug wires, distributor for damage, and spark plug gap. The pictures all show oil following on the plugs which is not uncommon on a new engine. It appears the rings have not fully seated yet. How many miles on the engine?

Also check all the things Smokey mentioned.

Here is a link to plug reading pictures
www.centuryperformance.com/spark-plug-reading-spg-192.html

 

[F 150Cobra]

Remember, black smoke means "Incomplete Combustion" so your carburetor could be set correctly but you are not getting spark, to little spark or spark at the wrong time. More than likely since it is only on one side of the engine, I suspect you are not getting sufficient spark to some of the cylinders. Check all your plug wires, distributor for damage, and spark plug gap. The pictures all show oil following on the plugs which is not uncommon on a new engine. It appears the rings have not fully seated yet. How many miles on the engine?

Also check all the things Smokey mentioned.

Here is a link to plug reading pictures
www.centuryperformance.com/spark-plug-reading-spg-192.html

engine has about 50- 75 miles on it

 

[Skandocious]

It's those damned PLATINUM PLUGS!!! You should know better Jurgy.

 

[F 150Cobra]

It's those damned PLATINUM PLUGS!!! You should know better Jurgy.

they came with the engine

 

[1985 Ford F-150]

What colors the smoke?
If its black then thats unburned fuel. Blue is oil unless your runnin synthetic then itll be white or invisible. White is coolant.

 

[F 150Cobra]

What colors the smoke?
If its black then thats unburned fuel. Blue is oil unless your runnin synthetic then itll be white or invisible. White is coolant.

its like blue ish black but.. strong fumes of unburned fuel..

 

[Fellro]

I too have had problems with plat plugs put into non-plat ignition systems not working out so well... took a barely firing car to a perfectly starting car just by ditching the plats...

 

[flareside_thunder]

Yea Jurgen ditch the plats...get some NGK's if ya can.....got your timing advanced at all?May need to adjust it a bit....

 

[1985 Ford F-150]

Id get motorcraft. I had a set on that 390 and theyre the best plugs ive ever had.

 

[Skandocious]

Id get motorcraft. I had a set on that 390 and theyre the best plugs ive ever had.

Copper Motorcrafts or Autolites are the only ones I trust.

 

[1985 Ford F-150]

My dad hates autolites for some reason.

 

[flareside_thunder]

I always have a problem with them cracking....

 

[1985 Ford F-150]

Ive only broke a couple of em.

 

[F 150Cobra]

yeah im not trusting these platinums ... im gonna get some copper ones later.. timing is at 15