1964-1970 Mustang Member Tech & Restoration Discussion

Vapor Lock

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Old 9/13/05 | 11:04 PM
  #1  
1965GTFB's Avatar
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I have a 1965 Mustang with a 302. Today i started her up and took her for a drive she was running awesome. Then I sat at light for i minute and kinda pretty much idled for about a few minutes. Still she was running ok. Then I turened her of and she desieled. So I went to turn her back on and she tried the battery sounded good the starter was cranking away but nothing. I think this is vapor lock I have had several times stuff like this has happened but not like this. I think that is because my fuel line runs way to close to my headers and value covers my i have no where to move it. Has anybody else had this problem. Sorry its so long
Old 9/14/05 | 07:42 PM
  #2  
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From: Ontario Canada
vapour lock usually happens when the car is running and it shuts off by iteself.....maybe ur fuel pump is calling it quits
Old 9/14/05 | 09:22 PM
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Thats what happened I turned it off then started her back up went about a 1/4 of a mile and off she went.
Old 9/16/05 | 08:17 AM
  #4  
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From: Ontario Canada
k this is what you do...one day when shes cold fora nice cruise and warm her up....then hit some traqfiic lights ot just let it idle or drive slow so it heaqts up...9if she shuts off on u then its vapor lock for sure
Old 9/20/05 | 01:46 PM
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I don't think I have enough information to determine if I think your problem is vapor lock or not but I can give you an even better suggestion to determine if it is the casue of your problem.

One of the oldest (and cheapest) of old school tricks for curing vapor lock is to simply clip on a few clothes pins to your fuel line here and there where you suspect they are too close to a heat source. If vapor lock was the problem then you should experience it no longer and can then invest in some insulation or other means of protection. If it persists then you can begin to look elses where for your problem at least.

Did you check your fuel filters BTW?

OH in case you are wondering why the clothes pin works it's simple, wood disapates heat faster than metal does. Just so you don't think I'm high or something.
Old 9/20/05 | 02:30 PM
  #6  
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Originally posted by pakrat@September 20, 2005, 1:49 PM
Just so you don't think I'm high or something.
So wood being good at dissapating heat is proof that you aren't high?

Riiiiiiiiight. :crazy: :P
Old 9/20/05 | 06:47 PM
  #7  
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I had a VL problem on my 65. I solved it by using rubber fuel line from the pump, up to the export brace and across to the carb (Carter AFB). Left enough slack for the engine rock.
Old 9/20/05 | 06:47 PM
  #8  
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I had a VL problem on my 65. I solved it by using rubber fuel line from the pump, up to the export brace and across to the carb (Carter AFB). Left enough slack for the engine rock.
Old 9/20/05 | 09:23 PM
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I run a steel braided fuel line from the tank to the carb, still would get VL on very hot days, bought some insulator wrap from summitt, problem solved.
Old 9/21/05 | 10:24 AM
  #10  
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Originally posted by BLAKE@September 20, 2005, 1:33 PM
So wood being good at dissapating heat is proof that you aren't high?

Riiiiiiiiight. :crazy: :P
LMAO< Yeah, just like you not being a steer proves something. DOH!
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