The Ford Barn

sortkaffekop · 07-11-2014, 05:34 AM

Quote:

Originally Posted by Snouts out

In..! If your still fouling plugs,rebuild the carb.

Great! Will try that (thought it was out!)

PeteVS · 07-11-2014, 06:52 AM

Gasoline molecules are basically composed of some crazy arrangement of Hydrogen and Carbon. (It's a "hydrocarbon" material.) When gasoline burns in the presence of Oxygen, the Hydrogen and Carbon separate and they both combine with the Oxygen, forming "oxides." There are two forms of oxides of Carbon- Carbon dioxide (two atoms of Oxygen with one atom of Carbon, and Carbon monoxide (one atom of Oxygen with one atom of Carbon. If the mixture of gasoline and Oxygen is incorrect, there might also be small of plain carbon, or black soot. The oxide of Hydrogen is Hydrogen dioxide (water.) Since the oxides produce large amounts of heat, the water exists in the combustion chamber as steam and if the engine and exhaust system are hot, it will exit the tailpipe as invisible steam. When the engine is shut off, all of the steam that's in the exhaust system will condense into water droplets as the metal cools off and lie in the pipes and muffler until the engine is restarted, and then the new exhaust will blow the old water, and soot if there is any, out the tailpipe.

Tinker · 07-11-2014, 08:01 AM

Quote:

Originally Posted by sortkaffekop

So: What is it?

Will adjusting theese screws cure fouling/Carbon on plugs?

Thanks/Christian

One way to adjust the idle screws is to screw it in till the engine starts to stumble, then back off a half turn to a full turn. Do each idle circuit, one at a time.

Another way, and a better way is to use a vacuum gauge.

Lawson Cox · 07-11-2014, 08:50 AM

Same instructions on a Stromberg would sure help.

Mike51Merc · 07-11-2014, 11:13 AM

Is it just me, or doesn't anyone know that a combination of a little choke and cold exhaust pipes will result in wet sooty exhaust?

36tbird · 07-11-2014, 12:19 PM

Sponsored Links (Register now to hide all advertisements)

What about 2 deuce, straight linkage? Do you hook up the vacuum and go in some series a little bit at a time until the vacuum drops off?

sortkaffekop · 07-11-2014, 02:51 PM

Great answers! - I have experienced the soot and water from exhaust. Will try the adjusting.
But: IF car still fouling/sooting plugs after this, what can I do then? (except from buy a new carburetor, or car..) Have changed for warmer plugs (NGK 4)
Float level?

B-O-B · 07-11-2014, 03:50 PM

it's been a while but on my 34 coupe the tail pipe ends were really black & sooty & the car did not run very well although it started & idled fine. That was whem\n I purchased it around 06 so forgive my PP memory. To get to the point the P O had an electric fuel pump & no regulator. I installed a regulator adjusted the float level & installed a new fuel hose from the regulator to carb & bumped the timing one notch. I had already installed a heavier battery cable 1/0 from the trunk located 6V battery to the starter as P O had 12V type wires & cable. Car runs as smooth as a well oiled machine can run. I do use MMO & marine sta-bil in the gas. Make driving a pleasure for sure. Oh no more black sooty exhaust tips.

sortkaffekop · 07-12-2014, 06:20 AM

Have reduced mixture screws now to one turn from closed. This have eliminated a slight hesitation when picking up - now its as gentle as can be - a pleasure!

Not sure about the fouling yet. Will investigate.

However: now it backfires a lot...

Think I will go out and check float level now

lesbliss · 07-12-2014, 10:37 AM

If you live where the air is moist it seems inevitable. 10 Years living in eastern Oregon with our 51 Merc. gave me two permanent soot spots on the driveway. Lots of time and money trying to correct a problem that wasn't really a problem. Always started and if we ran it long enough to get warm no fouling. Now that we have moved the car to Las Vegas she only marks her parking place with a small oil drip.

Don't sweat the small stuff have fun

Les Bliss
51 Merc

lesbliss · 07-12-2014, 10:39 AM

I meant western Oregon.

Les

Tinker · 07-12-2014, 09:12 PM

Quote:

Originally Posted by sortkaffekop

Have reduced mixture screws now to one turn from closed. This have eliminated a slight hesitation when picking up - now its as gentle as can be - a pleasure!

Not sure about the fouling yet. Will investigate.

However: now it backfires a lot...

Think I will go out and check float level now

Not sure how it can be a pleasure and back firing at the same time.

You might have a vacuum leak in the carb. But... You certainly need the right pressure and float setting first.

To get rid of the back fire, see if backing the idles out a turn will help first.

One turn out from seat, for me, only barely starts the car for a minute.But it is definitely a great starting point. Then you know both idles are at equal points.

It's certainly a combo of things to dial it in perfect.

Shadetree · 07-12-2014, 09:16 PM

Remember the days when we burned leaded gas how the exhaust pipes were a light grey in color? We always thought that was the indication of a good engine and a well tuned one. Nowadays all exhaust pipes are black.

07-11-2014, 06:52 AM	#22
PeteVS Senior Member Join Date: May 2010 Location: FP, NJ Posts: 2,770	Re: Wet Black Soot Exhaust Gasoline molecules are basically composed of some crazy arrangement of Hydrogen and Carbon. (It's a "hydrocarbon" material.) When gasoline burns in the presence of Oxygen, the Hydrogen and Carbon separate and they both combine with the Oxygen, forming "oxides." There are two forms of oxides of Carbon- Carbon dioxide (two atoms of Oxygen with one atom of Carbon, and Carbon monoxide (one atom of Oxygen with one atom of Carbon. If the mixture of gasoline and Oxygen is incorrect, there might also be small of plain carbon, or black soot. The oxide of Hydrogen is Hydrogen dioxide (water.) Since the oxides produce large amounts of heat, the water exists in the combustion chamber as steam and if the engine and exhaust system are hot, it will exit the tailpipe as invisible steam. When the engine is shut off, all of the steam that's in the exhaust system will condense into water droplets as the metal cools off and lie in the pipes and muffler until the engine is restarted, and then the new exhaust will blow the old water, and soot if there is any, out the tailpipe. __________________ Don't never get rid of nuthin!

07-11-2014, 08:50 AM	#24
Lawson Cox Senior Member Join Date: May 2010 Location: Above the gnat line in Georgia Posts: 7,009	Re: Wet Black Soot Exhaust Same instructions on a Stromberg would sure help. __________________ Life is like a roll of toilet paper. The closer to the end, the faster it goes. It is better to be seen, than viewed. "We sleep safe in our beds because rough men stand ready in the night to visit violence on those who would do us harm".

07-11-2014, 11:13 AM	#25
Mike51Merc Senior Member Join Date: May 2010 Location: Northeast Pennsylvania Posts: 1,582	Re: Wet Black Soot Exhaust Is it just me, or doesn't anyone know that a combination of a little choke and cold exhaust pipes will result in wet sooty exhaust?

07-11-2014, 12:19 PM	#26
36tbird Senior Member Join Date: May 2010 Location: nw SanAntonio, TX Posts: 939	Re: Wet Black Soot Exhaust Sponsored Links (Register now to hide all advertisements) What about 2 deuce, straight linkage? Do you hook up the vacuum and go in some series a little bit at a time until the vacuum drops off?

07-11-2014, 02:51 PM	#27
sortkaffekop Senior Member Join Date: Jun 2013 Location: Kolding, Denmark Posts: 129	Re: Wet Black Soot Exhaust Great answers! - I have experienced the soot and water from exhaust. Will try the adjusting. But: IF car still fouling/sooting plugs after this, what can I do then? (except from buy a new carburetor, or car..) Have changed for warmer plugs (NGK 4) Float level?

07-11-2014, 03:50 PM	#28
B-O-B Senior Member Join Date: May 2010 Location: Ft Mohave,Az Posts: 1,987	Re: Wet Black Soot Exhaust it's been a while but on my 34 coupe the tail pipe ends were really black & sooty & the car did not run very well although it started & idled fine. That was whem\n I purchased it around 06 so forgive my PP memory. To get to the point the P O had an electric fuel pump & no regulator. I installed a regulator adjusted the float level & installed a new fuel hose from the regulator to carb & bumped the timing one notch. I had already installed a heavier battery cable 1/0 from the trunk located 6V battery to the starter as P O had 12V type wires & cable. Car runs as smooth as a well oiled machine can run. I do use MMO & marine sta-bil in the gas. Make driving a pleasure for sure. Oh no more black sooty exhaust tips.

07-12-2014, 06:20 AM	#29
sortkaffekop Senior Member Join Date: Jun 2013 Location: Kolding, Denmark Posts: 129	Re: Wet Black Soot Exhaust Have reduced mixture screws now to one turn from closed. This have eliminated a slight hesitation when picking up - now its as gentle as can be - a pleasure! Not sure about the fouling yet. Will investigate. However: now it backfires a lot... Think I will go out and check float level now

07-12-2014, 10:37 AM	#30
lesbliss Member Join Date: May 2010 Location: Henderson,NV Posts: 56	Re: Wet Black Soot Exhaust If you live where the air is moist it seems inevitable. 10 Years living in eastern Oregon with our 51 Merc. gave me two permanent soot spots on the driveway. Lots of time and money trying to correct a problem that wasn't really a problem. Always started and if we ran it long enough to get warm no fouling. Now that we have moved the car to Las Vegas she only marks her parking place with a small oil drip. Don't sweat the small stuff have fun Les Bliss 51 Merc

07-12-2014, 10:39 AM	#31
lesbliss Member Join Date: May 2010 Location: Henderson,NV Posts: 56	Re: Wet Black Soot Exhaust I meant western Oregon. Les

07-12-2014, 09:16 PM	#33
Shadetree Senior Member Join Date: May 2010 Location: Cottageville, WV Posts: 1,535	Re: Wet Black Soot Exhaust Remember the days when we burned leaded gas how the exhaust pipes were a light grey in color? We always thought that was the indication of a good engine and a well tuned one. Nowadays all exhaust pipes are black. __________________ Son, you will never blow an engine up in high gear.