GM, The real answer to Vapor Lock

keith oh

keith oh

Well-known member
Don't know the part number. :D
 

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Dream on. There's not a thing 50 of them would do. The problem is in the pump, not the fuel line. G.M.
 
The wooden clothes pins are an excellent conversation starter :D however, not so much a Flathead starter...:eek:;)
 
Clever! Ford anti vapor lock clothes pins! Where did you find those Keith Oh? Great conversation pieces! They surely must work or Ford wouldn't have put their name on them!:rolleyes:
 
Old Henry said:
Or, take along a bushel of these to push a half of down onto the fuel pump when vapor locked. :)

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The grapefruit installed on the top of the fuel pumps is at the source of the vapor lock. Check the temperature of the pump when running and you will find the bottom of the pump is hotter than the top before heat soak takes place. The gas going though the pump cools the top of the pump real good above 55 MPH. But below 55 the gas sits in the pump to long and this is when Vapor lock starts. With the return line I installed the fuel cools the top of the pump. A typical temperature on a 90 degree day with the return line is the bottom of the pump 130-135, the top with fuel continually running through the pump with a .070 restrictor in the return line is in the 120 to 124 range. A larger .100 return restrictor cools the pump down in the 115 range but reduces the fuel pressure, low fuel pressure adds to the vapor lock problem. We can stop and pick a grapefruit or large orange down here but what do you do up North?? G.M.
 
I think most guys up North like pasture pies ! They can be molded around the fuel pump for maximum coverage if found at the right time!!
 
Youse guys should have taken Jay Leno's place....you are much funnier than Jimmy Fallon......
 
I had a 31 model a that ever time you drove it it would v/l we drove it to the moonshine festival and had to stop 3 times. After finale getting to the show a gentleman said put close pens on it, my wife went to the super market that was close by and bough some, after putting them on it run great and never did it again. Looked funny but worked.
 
See 37 coupe, Jerry has the proof and GM actually took me serous. Give me a holler Shadetree I got more.
 
jerry shook said:
I had a 31 model a that ever time you drove it it would v/l we drove it to the moonshine festival and had to stop 3 times. After finale getting to the show a gentleman said put close pens on it, my wife went to the super market that was close by and bough some, after putting them on it run great and never did it again. Looked funny but worked.
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Tell me please, exactly where did you put the clothes pins to cure the vapor lock on your Model A?
 
I don"t know which one worked or how i put them on the gas line, and carb. I diden wont to push anymore so i put several. Don:t ask me how they worked or if that is what fixed it, i just know as long as they were there it run.
 
wood isn't a great heat sink,but is a fairley good insulator.if you put enough clothspins on the fuel line,the would keep the line from absorbing heat.
 
I know they were setting a trap for George. I just knew that was coming. Its getting warm up here finally George so you can come home. Hope you will be at Gettysburg this summer at the National meet.
 
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