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Joined: Oct 2007
Posts: 304
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Oct 2007
Posts: 304 |
I was driving my 36 FC over the week end and everything was going fine until we were on the way home and started climbing the mountains. About ½ way up it began to buck and miss like it was running out of gas. I backed off on the accelerator and it stopped, but I began loosing speed. After letting the string of cars behind me pass, I finally made it to the top of the mountain. It was a hot day, (98 degrees) and I don’t have a temperature gauge, so I don’t know how hot the engine was.
Any ideas?
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Joined: Sep 2005
Posts: 558
Oil Can Mechanic
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Oil Can Mechanic
Joined: Sep 2005
Posts: 558 |
Could the fuel have begun to vaporize in the lines? I know a fellow who had a 32 or 33 roadster that occasionally had that problem. Hosing the fuel lines down with a water bottle seemed to temporarily solve the problem.
Dan
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Joined: Oct 2007
Posts: 304
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Oct 2007
Posts: 304 |
I was wondering if it was vapor lock
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Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
Joined: Nov 2001
Posts: 29,863 |
The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
I would bet on the vapor lock. The fuel in the gas line leading up to the fuel pump plus the fuel in the fuel pump begins to boil and turn into vapor. Pouring cold water over the pump and line will help. When driving keep the RPM's up and try to keep moving. And eletric fuel pump back at the tank will eleminate the problem. That way even if the fuel boils it keeps being pushed along up to the caburetor.
Gene Schneider
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Joined: Sep 2007
Posts: 654 Likes: 3
Oil Can Mechanic
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Oil Can Mechanic
Joined: Sep 2007
Posts: 654 Likes: 3 |
It would be a good idea to install a water temp gauge just to be sure you don't have an overheating issue. My 1936 FC started to overheat because while running it would lose water from the water pump packing. I'm glad I had a temperature gauge!
J Franklin
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Joined: Jul 2005
Posts: 188
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Jul 2005
Posts: 188 |
as i live in florida it gets hot . my 36 stanard used to vapor lock . some body told me to wrap the gas line in tinfoil easy chep and at the show you can take tinfoil off.it seems like it helped as it do not do it any any more. my 36 had no tempture gauge.i put one on with a clip. at show unclip and hide under dash. my 36 run about 180 as long as i am moveing. smitty
smitty
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