by chainsaw Sat Apr 25, 2015 5:59 pmIs it possible to vapor lock at 195-200 degrees or could I have picked up a piece of trash that clogged the fuel flow ? Coming back from a show today ( the same one I got side swiped at last year) running at 180 degrees, hit stop and go traffic and temp climbed to 200. A couple minutes later it just shut off. Checked carb, no gas. Sat for about 15 minutes and it started back up and made it home. Its never ran hot before but it was 90 degrees outside and I was running it about 70 mph, 350 rear and stock 302.
5 posters
vapor lock
chainsaw- Number of posts : 226
Location : Dallas Tx.
Registration date : 2008-05-29
Twinpilot001- Number of posts : 6186
Location : spokane ,Wa.
Registration date : 2009-09-28
vapor locked- esp. if no problems prior? Watch for fuel pump going bad ?? smell oil on dipstick -fuel smell??
donivan65- Governor
- Number of posts : 12220
Location : San Diego, California
Registration date : 2008-05-12
Is your tank clean,,,,,,,,sometimes the fuel pick up tube in the tank sucks up something that stops the fuel flow to the fuel pump,,,,,,,,,,,,once the engine dies, it looses suction and whatever was blocking the tube, floats away until it ends up blocking off the tube again,,,,,
chainsaw- Number of posts : 226
Location : Dallas Tx.
Registration date : 2008-05-29
Nope ,never done it before and never got above 180. No fuel smell on dipstick. It has electric pump, seems good but who knows. Hoping I just picked up some trash, not sure how good-bad the tank is inside. Going to reroute fuel line to get it more away from the engine.
Twinpilot001- Number of posts : 6186
Location : spokane ,Wa.
Registration date : 2009-09-28
still running the mechanical pump?? Now - this may sound =stupid to you =BUT!! it works!! put some old style wood spring loaded clothes pins on the metal line!! NO =Im not full of BS!! do it!! in the old days of vapor lock this was done!! eliminated it too!! 
chainsaw- Number of posts : 226
Location : Dallas Tx.
Registration date : 2008-05-29
No ,Its an electric fuel pump, hard line from pump to front of doghoue then rubber to carb. Just got back from the Lone Star Round up and saw a few cars that had the clothes pins on the fuel line.
dan nachel- Number of posts : 394
Location : sc
Registration date : 2012-01-24
Twin is right, The clothes pin thing works. I had to put them on my 76 van years ago.
chainsaw- Number of posts : 226
Location : Dallas Tx.
Registration date : 2008-05-29
Does it only work if the metal line is near the carb ?
Twinpilot001- Number of posts : 6186
Location : spokane ,Wa.
Registration date : 2009-09-28
i have no idea =as im dont know how long the metal line actually is?? If the only metal line is like 2 inches long & rest is rubber line ?? I doubt it -original lines were all metal. i have seen this done .
Semberton- Number of posts : 24
Location : Savannah,ga
Registration date : 2014-11-14
I had the same problem in my 63 so I took my sending unit out of the tank and the screen was trashed. The come out without dropping the tank. Put a new one in and changed filter and never had a problem again.
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