Try Your Hand at Diagnosing This Problem
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Elder User
Joined: Dec 2010
Posts: 562
Likes: 1
From: Texas
Try Your Hand at Diagnosing This Problem
I recently solved a problem with my 66 and since I like diagnosing and fixing various issues on my old cars, I figured I'd make it into a "challenge" of sorts...for the entertainment of you fine folks here at the FTE.
I'll post the symptoms here and then the solution later today. (the single solution to both problems was simple and cheap)
Here are the symptoms:
(First a description of the truck ---> 1966 F100 240 3 speed, absolutely bone stock, 65K original miles)
- After running the truck and shutting it off, fuel drips from the linkage at the base of the carb, on to the intake manifold
- Autolite 1100 recently, carefully rebuilt.
- Truck extremely hard to start when cold
- Once fired up however, it runs perfectly, idles perfectly, and if turned off and turned right back on, it starts instantly.
- If allowed to sit more than a few minutes after running, it is extremely hard to start.
Like I said, one thing was causing all of the above.
Good luck. I'm proud to announce that the winner gets.....well nothing. Nothing at all. But I get a kick out of solving minor issues on this old iron and I figured some of y'all might too.
I'll post the symptoms here and then the solution later today. (the single solution to both problems was simple and cheap)
Here are the symptoms:
(First a description of the truck ---> 1966 F100 240 3 speed, absolutely bone stock, 65K original miles)
- After running the truck and shutting it off, fuel drips from the linkage at the base of the carb, on to the intake manifold
- Autolite 1100 recently, carefully rebuilt.
- Truck extremely hard to start when cold
- Once fired up however, it runs perfectly, idles perfectly, and if turned off and turned right back on, it starts instantly.
- If allowed to sit more than a few minutes after running, it is extremely hard to start.
Like I said, one thing was causing all of the above.
Good luck. I'm proud to announce that the winner gets.....well nothing. Nothing at all. But I get a kick out of solving minor issues on this old iron and I figured some of y'all might too.
Last edited by shortwide; Jul 7, 2014 at 10:14 AM. Reason: fixing my grammar....sometimes I wonder what the hell my 8th grade English teacher was doing.
Lead Driver
Joined: Aug 2003
Posts: 6,305
Likes: 18
From: Boulder Creek, Ca
My guess is power valve; either the power valve, gasket or warped housing. If leak is coming from between lower and upper housing then one or the other is warped or gasket needs to be replaced?? 
Cross-Country
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Elder User
Joined: Dec 2010
Posts: 562
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From: Texas
Lot's of great potential solutions offered up....more than one of which could've caused the issues.
My particular, easily solved, problem was nailed by TA455HO and indirectly nailed by Crazed87Bronco.
The spacer plate was missing between the carb and intake manifold, causing the fuel to boil in the float bowl, which caused the dripping gas and engine flooding, but only when the engine was brought up to full operating temp.
Installed spacer, problems went away.
Thanks for playing!
My particular, easily solved, problem was nailed by TA455HO and indirectly nailed by Crazed87Bronco.
The spacer plate was missing between the carb and intake manifold, causing the fuel to boil in the float bowl, which caused the dripping gas and engine flooding, but only when the engine was brought up to full operating temp.
Installed spacer, problems went away.
Thanks for playing!
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