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Old 05-20-2013, 07:46 AM   #1
davehc
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Default Clothes Pins On Fuel Line

Heard about this from a fella at a local show , and wondered if you guys had ever heard of it , and if you thought there was any merit to it .
Was looking at the engine of an "A" , and noticed that there were about five , "wooden clothes pins " , clipped to the gas line just ahead of the fitting in the carb . Asked the guy why , and he said that he was having trouble with it stalling on him after driving short distances and couldnt figure out why . Then he remembered his Grandpa doing it with his car back in the day , saying it drawed heat away from the fuel line .
He said he hasent had the problem since putting them on . ??? I enjoy hereing these old remides , whether they work or not .
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Old 05-20-2013, 07:57 AM   #2
BRENT in 10-uh-C
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Default Re: Clothes Pins On Fuel Line

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Heard about this from a fella at a local show , and wondered if you guys had ever heard of it , and if you thought there was any merit to it .
Was looking at the engine of an "A" , and noticed that there were about five , "wooden clothes pins " , clipped to the gas line just ahead of the fitting in the carb . Asked the guy why , and he said that he was having trouble with it stalling on him after driving short distances and couldnt figure out why . Then he remembered his Grandpa doing it with his car back in the day , saying it drawed heat away from the fuel line .
He said he hasent had the problem since putting them on . ??? I enjoy hereing these old remides , whether they work or not .
I always thought the clothes pins were supposed to be wet to dissipate the heat from the fuel line.

The topic about the engine stalling has been argued to the hilt here in the past as to whether 'vapor lock' is the cause for this. Interesting reading if you are a by-stander IMHO!! Some (-me included) feel like a good chassis & body ground, along with engine pans will usually cure this problem.
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Old 05-20-2013, 08:34 AM   #3
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Default Re: Clothes Pins On Fuel Line

I can remember my uncle's '51 Ford V8 back in the mid-50's. He must have had 20 clothespins on his fuel line between the pump and the carb. Remember him telling my dad how it stopped his engine stalling (vapor lock?) problems.
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Old 05-20-2013, 08:38 AM   #4
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Default Re: Clothes Pins On Fuel Line

Rusty water blowing back from the leaking water pump should keep the clothes pins wet? Just a guess.
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Old 05-20-2013, 08:50 AM   #5
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Default Re: Clothes Pins On Fuel Line

Good place to hang freshly laundered shop rags. The fan and hot air dries them quickly. When your rags are dry the fuel line will heat and vapor lock, automatically shutting off your drier.
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Old 05-20-2013, 09:01 AM   #6
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This and numerous other alleged vapor lock cures have been discussed here many times. I can tell you that from a scientific viewpoint, the wooden clothes pins make no sense. Wood is an insulator, so it's hard to imagine it would help radiate heat away from the fuel line. Even if it did, it would be working in the wrong direction; the problem is due to heat from the engine compartment getting INTO the fuel line, not fuel that was heated elsewhere needing to cool off as it traverses the engine compartment. While wetting the clothes pins down would provide some very short term evaporative cooling, wood absorbs so little water that that rationale just seems silly to me; wet rags are a proven short term fix, but I don't believe anyone advocates driving around with rags on their fuel line.

The only basis for the clothes pin trick working that I can conceive of is possibly as a vibration dampener on the fuel line: vibrations will encourage bubble formation in an otherwise metastable slightly superheated liquid. But, that too seems pretty farfetched to me.

The whole business is very controversial. Some folks even claim that it's impossible for a gravity fed-no fuel pump system to have vapor lock (by their definition). Search under "vapor lock" and you'll hear it all. However, there is no doubt that fuel vaporization can occur in the fuel line, whether or not it causes a problem is another question. Here's a picture of a vapor bubble I could watch build up in the top of my sediment bowl, and then burp on down the line, and repeat endlessly with motor idling smoothly on a hot day.



The problem is undoubtedly aggravated by addition of ethanol to gasoline, which raises the fuel's vapor pressure. Gasoline starts to boil around 100 degrees F, then boiling point goes up as the lighter fractions leave.

There's always a rash of vapor lock threads on the forum about this time of the year, as folks burn off their winter blend gasoline and the gas stations transition to the higher-boiling summer blend. Paradoxically, folks who live down south often report never having vapor lock issues even though it's much hotter down there. I believe that's because they only ever are sold a higher-boiling blend.

Steve

Last edited by steve s; 05-20-2013 at 09:16 AM.
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Old 05-20-2013, 09:07 AM   #7
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Default Re: Clothes Pins On Fuel Line

Humble Opinion:

One may say that in the past 5 years or so, the two (2) Model A Forums have advertised more about buying clothes pins to place on Model A gas lines than the clothes pins manufacturer's have advertised about buying clothes pins to place on clothes line.
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Old 05-20-2013, 10:52 AM   #8
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Default Re: Clothes Pins On Fuel Line

60 years ago it was done a lot. Don't know if it did any good. I never did it back then LOL Bill
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Old 05-20-2013, 11:16 AM   #9
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Default Re: Clothes Pins On Fuel Line

Post #6 by Steve S is spot-on. There are many old wives tales still circulating amoung us. Such as "heat rises". First year engineering students would fall for it every time.
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Old 05-20-2013, 11:19 AM   #10
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Default Re: Clothes Pins On Fuel Line

Its always seemed to me that the clothes pins would be insulating the fuel line. Wood sure isn't a good conductor.
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Old 05-20-2013, 12:43 PM   #11
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Default Re: Clothes Pins On Fuel Line

I saw that lots when I was a kid,I would ask what they were on there for and somebody would answer,vapor lock.Years later I found I was getting half of the story.The clothespins were on there to keep the tin foil wrapped around the line from unraveling.The foil would fall apart anyway,but the pins would stay.I think a lot of that kind of stuff got instilled into us as little kids and we would take it as gospel.Kind of like the old guy here that says Ford used the old packing crates to make the wood frames for the bodies,he was told that in 1940 and you will never convince him otherwise.
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Old 05-20-2013, 01:51 PM   #12
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Default Re: Clothes Pins On Fuel Line

My first car a 1950 chevy back in 1962, especially on hot days it would vapor lock (at least that's what we called it).an old man told me to put clothes pins on the fuel line . I did and know more trouble. Can't explain the reason why it worked . If anyone is having trouble with (vapor locking). Or thinks that's what it is , try the clothes pins. whats it going to hurt.
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Old 05-20-2013, 02:26 PM   #13
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Default Re: Clothes Pins On Fuel Line

The concept is absurd.....
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Old 05-20-2013, 02:54 PM   #14
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Default Re: Clothes Pins On Fuel Line

The addition of Marvel Mystery Oil to the fuel, seems to alleviate some of the ethane problems, but not all. I use a braided type material that is used to wrap small steam tracing tubing lines that are used in many large industrial process plants. The material is a braided replacement for asbestos. 1" wide x 3/16" thick. Wrapped around the tubing, and wired tight at both ends. IMO I don't believe they had that much problem with the heavier fuel of days gone by, and with the first cast iron design sediment bowl. For the mechanical engineers on this subject.....does NPSH enter into this at all ?
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Old 05-20-2013, 03:02 PM   #15
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Default Re: Clothes Pins On Fuel Line

Sounds to me a bit like the man running down the railroad track waving a clothes pin in his hand over his head while trying to warn the engineer of an approaching train that there was a wash-out on the line ahead.
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Old 05-20-2013, 04:00 PM   #16
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Default Re: Clothes Pins On Fuel Line

Chief put a clothespin on a stray cat's tail, he NEVER came back! Bill W.
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Old 05-20-2013, 04:13 PM   #17
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Default Re: Clothes Pins On Fuel Line

vapor lock is real, but not in the fuel line, its in the fuel pump, vapor there causes the pump to lose its prime, fuel pumps wont suck and pump vapors, model a,s with no fuel pump doesnt have that problem, it has the problem of the carb getting hot and boiling the gas in the fuel bowl, thus no gas there to be sucked into the engine to burn, only vapors, the vapors in the fuel bowl has enough pressure to stop any fuel flowing into carb ( thats my story and im sticking to it )
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Old 05-20-2013, 04:21 PM   #18
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vapor lock is real, but not in the fuel line, its in the fuel pump, vapor there causes the pump to lose its prime, fuel pumps wont suck and pump vapors, model a,s with no fuel pump doesnt have that problem, it has the problem of the carb getting hot and boiling the gas in the fuel bowl, thus no gas there to be sucked into the engine to burn, only vapors, the vapors in the fuel bowl has enough pressure to stop any fuel flowing into carb ( thats my story and im sticking to it )
Yo, Ford3, yep, that's what Ol' Bill tole me! Buster T.
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Old 05-20-2013, 04:27 PM   #19
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Default Re: Clothes Pins On Fuel Line

Never had Vapor Lock with my A, Even in High 90's in Florida.
Years ago, saw some of these being used, at the Drag Strip, filled with ice. Maybe those that think they have Vapor Lock, could build a smaller Version than the one in the Photo.
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Old 05-20-2013, 04:36 PM   #20
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Never had Vapor Lock with my A, Even in High 90's in Florida.
Years ago, saw some of these being used, at the Drag Strip, filled with ice. Maybe those that think they have Vapor Lock, could build a smaller Version than the one in the Photo.
Yep, called a "COOL-CAN" common at the strips here in the HOT valley. Bill W.
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Old 05-20-2013, 04:39 PM   #21
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Talking Re: Clothes Pins On Fuel Line

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Post #6 by Steve S is spot-on. There are many old wives tales still circulating amoung us. Such as "heat rises". First year engineering students would fall for it every time.
OK I'll bite! What do you mean heat doesn't rise? I know there is no such thing as cold. Only the absence of heat,down to -460* or whatever absolute zero is. Is this the same as ford 3 is saying re vapor LOCK vs vapor caused liquid fuel STARVATION? Chuck
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Old 05-20-2013, 04:58 PM   #22
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Default Re: Clothes Pins On Fuel Line

Dog here, so, Brother Chuck, is intelligence just the abscency of idiocy? Or visa-versa Or versa- visa Buster T.
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Old 05-20-2013, 05:34 PM   #23
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Were going to use the plastic clothes pins. they come in so many different colors!
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Old 05-20-2013, 06:28 PM   #24
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Chief put a clothespin on a stray cat's tail, he NEVER came back! Bill W.
So where is Chief living now?

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Old 05-20-2013, 06:50 PM   #25
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So where is Chief living now?

Joe K
Chief passed 11 years ago & is probably up there, laughin' at US as we over- complicate such a SIMPLE car! Bill W.
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Old 05-20-2013, 10:42 PM   #26
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Quote:
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I saw that lots when I was a kid,I would ask what they were on there for and somebody would answer,vapor lock.Years later I found I was getting half of the story.The clothespins were on there to keep the tin foil wrapped around the line from unraveling.The foil would fall apart anyway,but the pins would stay.I think a lot of that kind of stuff got instilled into us as little kids and we would take it as gospel.Kind of like the old guy here that says Ford used the old packing crates to make the wood frames for the bodies,he was told that in 1940 and you will never convince him otherwise.
Finally, the rest of the story. Now the clothespins make sense.
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Old 05-20-2013, 11:09 PM   #27
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OK I'll bite! What do you mean heat doesn't rise? I know there is no such thing as cold. Only the absence of heat,down to -460* or whatever absolute zero is. Is this the same as ford 3 is saying re vapor LOCK vs vapor caused liquid fuel STARVATION? Chuck
Heat radiates equally in all directions, as the sun does. The reason we think heat rises is beacuse hot air 'floats' on cold air, because hot air is thinner than cold air. That's why a hot air ballon floats just like an ice cubes (less dense because of expansion) floats on water. It is because of density differences not temperature difference. Otherwise if heat were to rise, then why does colder ice rise?
Thermodynamics 101
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Old 05-21-2013, 01:52 AM   #28
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Default Re: Clothes Pins On Fuel Line

Thank God I've never seen this before reading about it as I would have insulted the owner by laughing so hard as to cry.
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Old 05-21-2013, 06:34 PM   #29
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Were going to use the plastic clothes pins. they come in so many different colors!
I recommend you stay with the WOOD type, LMAO!
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Old 05-21-2013, 07:15 PM   #30
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Do "they" still make clothespins?? Plugged in my iron after years of non-use, it stunk SO bad, I cooled it off & "tossed" it! Do "they" iron stuff nowadays?? I hope NOT! Bill W.
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Old 05-21-2013, 07:42 PM   #31
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Do "they" still make clothespins?? Plugged in my iron after years of non-use, it stunk SO bad, I cooled it off & "tossed" it! Do "they" iron stuff nowadays?? I hope NOT! Bill W.
I haven't ironed my cloths since high school days, but I still hang them on the line outside. Nothing like a solar drier. It saves on the electric bill so I can buy more Model A parts.
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Old 05-22-2013, 07:15 AM   #32
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Some of our old geezers were not rocket scientists bu they got the job done. Another good example !
Thanks, Al
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Old 05-22-2013, 10:34 AM   #33
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No fuel pump in As, therefore no vapor lock. The problem is IMO, the fuel line can get hot, and Mylar will reflect the heat away. However, the issue is the float bowl boils the fuel & the A will fuel starve. Heat can be transferred from the exhaust pipe to the air maze to the carb. In addition side valvers have the fuel entering the system( carb) right at the hottest spot... the exhaust manifold. Without engine pans heat resonates from the road surface and adds to the issue. With 0 fuel pump pressure gas will boil sooner. #2, these "vapor lock" issues always pop up in the spring. This, of course, is when the weather gets warm and there is all that WINTER gas still in the tank. Recommend, that the winter fuel be drained and new fresh summer fuel be added. Put the old stuff in your newer vehicle that pushes @25 psi into the injectors. Radiators work the same way ... boiling temp rises with pressure @ 3 degrees per lb of psi. Ron
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Old 05-22-2013, 11:08 AM   #34
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I think we should use clothes pins and magnets taped to the fuel line.

That would really confuse onlookers.
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Old 05-22-2013, 02:30 PM   #35
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Were going to use the plastic clothes pins. they come in so many different colors!
Try aluminum if you can still find them, but they only come in one color, grey.
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Old 05-22-2013, 02:32 PM   #36
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Would that be cow magnets? ROFLMAO!

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I think we should use clothes pins and magnets taped to the fuel line.

That would really confuse onlookers.
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Old 05-22-2013, 03:15 PM   #37
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Quote:
Originally Posted by BILL WILLIAMSON
Do "they" still make clothespins?? Plugged in my iron after years of non-use, it stunk SO bad, I cooled it off & "tossed" it! Do "they" iron stuff nowadays?? I hope NOT! Bill W.
end quote

Yep, they sure do and we still use them as intended. There are some local laws around here outlawing clothes lines, afterall, I live in NY. I tend to ignore laws that don't suit me. We still irons too, I don't like wrinkles !
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Old 05-22-2013, 04:20 PM   #38
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Quote:
Originally Posted by BILL WILLIAMSON
Do "they" still make clothespins?? Plugged in my iron after years of non-use, it stunk SO bad, I cooled it off & "tossed" it! Do "they" iron stuff nowadays?? I hope NOT! Bill W.
end quote

Yep, they sure do and we still use them as intended. There are some local laws around here outlawing clothes lines, afterall, I live in NY. I tend to ignore laws that don't suit me. We still irons too, I don't like wrinkles !
So Jersey H.O.A.s outlaw them too! Can you believe it? They want you to use those expensive squiggly light bulbs, but you're not supposed to use a solar drier! Any more than this and I'm getting political, so I'll stop here!
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Old 05-22-2013, 04:41 PM   #39
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I think we should use clothes pins and magnets taped to the fuel line.

That would really confuse onlookers.
But not as much as my 6V alternator does.
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Old 05-22-2013, 10:13 PM   #40
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Default Re: Clothes Pins On Fuel Line

My Model A developed vapor lock while I lived in Colorado. When the air temp got to be 100 F in the shad, it would occur.


I just do not understand other people on this forum claim that it can't happen ? They were not in my car....I was !!

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Old 05-23-2013, 01:06 AM   #41
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But not as much as my 6V alternator does.
But not as much as my skinny girlfriend does.
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Old 05-23-2013, 05:38 AM   #42
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The clothes pins do 2 functions: Keep eternal heat away from the fuel lines; make excellent conversation starters; a fuel line is as good a place to store them as any, I use several as antirattle wedges.
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Old 05-23-2013, 06:30 AM   #43
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One time I put all the fuel mileage improvements I could on my A. Special distributor gave 25% better mileage, special carb gave 60% better mileage, special plug wires gave 30% better mileage. Imagine my surprise when the fuel tank overflowed!
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Old 05-23-2013, 09:28 AM   #44
Mike V. Florida
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Default Re: Clothes Pins On Fuel Line

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Try aluminum if you can still find them, but they only come in one color, grey.
Terry
Now if someone had these I could say that it is acting like a heat sink and removing heat from the line.
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Old 05-24-2013, 12:45 AM   #45
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Default Re: Clothes Pins On Fuel Line

Mike V., I don't think so. To remove heat from a fuel line, the surrounding air has to cooler than the fuel in the line, BUT that is not the case! We have cool fuel entering the engine compartment from the fuel tank at maybe 80-90 degrees on a warm day. Meanwhile underhood temperatures may reach 200 degrees. This is what heats the fuel. Aluminum clothes pins will only conduct heat into the fuel line faster!
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Old 05-24-2013, 01:49 AM   #46
Mike V. Florida
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Originally Posted by 40 Deluxe View Post
Mike V., I don't think so. To remove heat from a fuel line, the surrounding air has to cooler than the fuel in the line, BUT that is not the case! We have cool fuel entering the engine compartment from the fuel tank at maybe 80-90 degrees on a warm day. Meanwhile underhood temperatures may reach 200 degrees. This is what heats the fuel. Aluminum clothes pins will only conduct heat into the fuel line faster!

If the air was stagnant then the case could be made but the air is moving through engine compartment, more surface area by way of the aluminum in the air moving by could be argued that it may be of help reducing the heat on the line (but most likely not), but it sure makes better sense than wood.
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Old 05-24-2013, 11:19 AM   #47
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Default Re: Clothes Pins On Fuel Line

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... the problem is due to heat from the engine compartment getting INTO the fuel line, not fuel that was heated elsewhere needing to cool off as it traverses the engine compartment. ... Steve
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Now if someone had these I could say that it is acting like a heat sink and removing heat from the line.
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Originally Posted by 40 Deluxe View Post
Mike V., I don't think so. To remove heat from a fuel line, the surrounding air has to cooler than the fuel in the line, BUT that is not the case! We have cool fuel entering the engine compartment from the fuel tank at maybe 80-90 degrees on a warm day. Meanwhile underhood temperatures may reach 200 degrees. This is what heats the fuel. Aluminum clothes pins will only conduct heat into the fuel line faster!
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Originally Posted by Mike V. Florida View Post
If the air was stagnant then the case could be made but the air is moving through engine compartment, more surface area by way of the aluminum in the air moving by could be argued that it may be of help reducing the heat on the line (but most likely not), but it sure makes better sense than wood.
Not surprising that this topic can never be resolved when we can't even agree which way heat wants to flow. Sorry, Mike, I'm with 40 Deluxe on this one: the problem is caused by hot air in the engine compartment heating the fuel line. Circulating hot air would be even more efficient at heating the fuel line since a layer of somewhat cooler air can not build up between the line and the larger heat reserve. Adding aluminum "fins" to the fuel line would only make it a more efficient heat sink for the engine compartment.

Now, if the fuel line were wet, so there could be evaporative cooling, it would be different.

Steve
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Old 05-24-2013, 03:50 PM   #48
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Default Re: Clothes Pins On Fuel Line

I have a custmer with 28 roadster that has had a problem for past few years, (a female) Carb & electrics fully rebuilt , The problem is she starts up, heads down the hiway & after about 7 miles the vehicle drops onto 2-3 cly,s, by stopping turning the engine off for a short time ,then fires up ,runs on 4 with no problem , I suggested the two wooden clothes pegs on the fuel line, Well this morning she turns up from a 50 mile trip sining my praises, for the 1st time it never did it , ??? On inspection it has a short steel pipe from the sediment bowl to a rubber hose , then another filter onto rubber hose & back to steel line as it enters the carb, I beleive the problem is the fuel line & it gets a vapour lock, the line as it enters the carb has a tight bend which brings it closer to the heat source, She is about to head off on a long tour so gave her an original fuel line & instructed her to take the micky mouse line she has on it off, BUT keep the clothes pegs on ,?Why well if they don,t work she can always use them to hold the washing out while on tour. Besides two must be better than one ? I expect a report after the tour as to the vapour lock problem , Thats my 2 pegs worth,
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Old 05-24-2013, 11:36 PM   #49
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Default Re: Clothes Pins On Fuel Line

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Sorry, Mike, I'm with 40 Deluxe on this one: the problem is caused by hot air in the engine compartment heating the fuel line.
Steve
Not a problem at all! What I did a poor job of saying was given wooden or metal clips, metal clips would make more sense but I also said "(but most likely not)".

I don't beleive anything hanging off the fuel line will help cool the fuel in that line.
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Old 05-25-2013, 12:00 AM   #50
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Default Re: Clothes Pins On Fuel Line

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Originally Posted by Mike V. Florida View Post
Not a problem at all! What I did a poor job of saying was given wooden or metal clips, metal clips would make more sense but I also said "(but most likely not)".

I don't beleive anything hanging off the fuel line will help cool the fuel in that line.
I agree. Been following this just havnt posted. Ive heard a lot of old timers remedies but I think most are just BS.
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Old 05-25-2013, 02:01 PM   #51
Arthur in AK
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Default Re: Clothes Pins On Fuel Line

Although I've never had a vapor lock problem on my A, I did experience terrible problems with it on my '51 Buick Roadmaster. It has a huge straight 8, and a very poorly designed path for the fuel line which crosses the front of the engine just south of the radiator.
My son and I drove it from Oklahoma to Alaska many summers ago. It was incredibly hot that summer - small wildfires alongside some of the interstates.
We kept getting vapor lock, until an 'crusty old' local mechanic we met along the way told me about the clothespin trick.
Honestly, at first I thought the guy was kidding. Or just plain nuts. But after getting stuck again for hours in the middle of nowhere, I found the closest store I could and bought a bag of wooden clothespins.
They sure looked ridiculous on the fuel line, but by God they worked! Got us all the way home without another vapor lock episode.
It doesn't get that warm up here in Alaska, but I still carry them in the Buick's trunk,along with my tools and parts.
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Old 05-25-2013, 03:43 PM   #52
Clem Clement
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Default Re: Clothes Pins On Fuel Line

Did I mention that all the ladies ask about my clothes pins. I tell 'em we gotsta hang our clothes someplace...
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Old 05-25-2013, 04:14 PM   #53
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Default Re: Clothes Pins On Fuel Line

No,no. I have a set of brand new special clothes pins just perfect for your fuel line. Just send me$50 and $20 for shipping (insurance is extra). At absolutely no extra charge, I will even have my five yr old granddaughter print Ford rather neatly on them. She's a pretty good printer.

For that price, I will send you as many sets as you'd like.
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