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  #11  
Old 09-22-2016, 11:35 AM
pbf777 pbf777 is offline
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If your game, try this: locate a suitable container to hold fuel, say about maybe a pint-quart should be sufficient (a Tall-Boy will due), punch a hole in the bottom just large enough to press (for retention & sealing) fuel hose into and be retained, fabricate a hangar to position your container above the carburetor (gravity fuel delivery) filled with fuel (coat hangar to under-hood framing?), route your fuel supply hose to the carburetor inlet fitting. Place original fuel supply hose from pump into a container (may need more fuel hose; secure appropriately), start engine. With engine running on your remote fuel supply (remember to maintain fuel quantity in remote container), is the mechanical fuel pump pumping fuel? How much? Time engine run duration (1500-2000 R.P.M.) and then measure fuel volume delivered. Note, this would be a "free flow" value; one could fabricate a regulated restriction (using an adjustable fuel pressure regulator w/ gauge?) or just an orifice restriction (maybe just Vise-Grips pinching hose w/ gauge teed in line between pump & pinch?) to create back-pressure (approx. 5 p.s.i. +/-) for a more accurate value as intended. Also, fuel flow sums will vary with engine R.P.M.s.

Understand that this procedure is probably not E.P.A. (open containers with fume escaping into the atmosphere and/or spillage in the environment), or O.S.H.A. (to much fume or spillage about hot surfaces may make for fire!) approved.

So remember, if your game, it was all your idea, I had nothing to due with it! Scott.
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  #12  
Old 09-22-2016, 12:21 PM
Hazegray53 Hazegray53 is offline
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I did rebuild the carb. It's a 2100 I believe. At one point last night it spit out a ball of fire. I set the needles to 1.5 turns out.
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  #13  
Old 09-22-2016, 12:38 PM
Joe Johnston Joe Johnston is offline
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Fire is good! Shows you have Air, Fuel and Spark. Now to just get them in the right ratios and INSIDE the engine!
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  #14  
Old 09-22-2016, 04:40 PM
Hazegray53 Hazegray53 is offline
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I think I should probably just replace the pump at this point. Need to recheck TDC to verify timing too. Any pump for a 352 will fit right?
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  #15  
Old 09-22-2016, 05:26 PM
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jopizz jopizz is online now
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Any FE pump will work 352 or 390. If you aren't using the vacuum ports get a pump without them. They're much cheaper.

John
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  #16  
Old 09-26-2016, 06:25 PM
Hazegray53 Hazegray53 is offline
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Well I got a new fuel pump. The other one was getting fuel to it but just wasn't pushing it up to the carb. Hopefully I can get that installed this week and give it another shot.

I'm still concerned about the pressure building in the gas tank. I confirmed I do have a vented gas cap but it doesn't seem to vent anything. By the end of the day there's a bunch of pressure built up. What's the proper way to fix this problem?
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  #17  
Old 09-26-2016, 07:00 PM
Joe Johnston Joe Johnston is offline
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1) buy a new correct cap
2) don't tighten it which would be OK for test drives and around the block
3) drill a 1/16" hole through it
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  #18  
Old 09-26-2016, 07:26 PM
Hazegray53 Hazegray53 is offline
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I thought I did buy a correct cap. What's the difference between the vented cap I have and a correct vented cap? And where do I get one? I also bought a second vented cap that is supposed to fit but the tabs don't go deep enough. Drill a hole? Is that how the factory would fix this problem with a tank that doesn't have any vent?
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  #19  
Old 09-26-2016, 08:25 PM
Joe Johnston Joe Johnston is offline
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If you bought the cap at the local parts store, there is a good probability it may not be correct, as evidenced by the second one you bought that doesn't fit properly. One of our Thunderbird specific parts suppliers should have a correct one.

No, drilling a hole is not how the factory would do it, but it would be a quick backyard mechanic fix to circumvent the issue. I am having a hard time understanding how pressure is building up in this tank for you when you can't be driving the car since:
Quote:
The other one was getting fuel to it but just wasn't pushing it up to the carb.
With very limited run time, the only way I can think pressure can build up is by extreme temperature changes - like having the cap off when very cold and tightening it and then opening it when it is very hot for a day. What is causing the pressure to build up??
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  #20  
Old 09-26-2016, 10:02 PM
Hazegray53 Hazegray53 is offline
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Honestly I wish I understood what was going on. The car is sitting in the garage while I'm fumbling through these problems to get it started up. I have been leaving the cap on and there's probably a 20 deg temp change from day to night.
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