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By 55ebird - 14 Years Ago
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I just tried starting my stock '55 292 with ECJ 9510G Holley "teapot." It had been running perfectly when i shut it down a year ago. It started immediately and ran perfectly for a few seconds on the gas prime i put into the carb. However, when the fuel pump kicked in i could see spurts of gas coming out the top if the carb, just under the air-cleaner bolt. It ran very rough for a minute or so and then died. Tried it again with the same results. I'm hoping there is a simple fix for this. Any suggestions?
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By rgrove - 14 Years Ago
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Id guess either stuck or sunk float. I think that would hold open the needle and cause your problem. Others may confirm
Hopefully not too serious!
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By oldcarmark - 14 Years Ago
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Depending on what type of needle is in the carb it could be sticking.Most of the newer carb kits use a needle with a "soft" tip.They deteriorate because of all the additives in todays gas.The originals were all steel and used a clip to attach to float so the needle moved in sync with the float.The new carb kits do away with that clip which also leads to problems.If the needle is the problem the original all steel ones can be bought through the obsolete parts dealers.You might also check the presure output of the electric fuel pump..Too much pressure can force the needle open leading to flooding.If you have had no trouble previously I think I would be looking at the needle and seat in the carb. Just reread your post.Are you using an electric pump or just the original mechanical one?
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By 55ebird - 14 Years Ago
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Ron and Mark, thank you for your replies. Based on the car sitting for a year, I'm pretty sure either the float or needle valve is stuck.
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By 55ebird - 14 Years Ago
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Mark, it's a mechanical fuel pump, all stock.
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By oldcarmark - 14 Years Ago
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I was just checking my parts book.I dont see an ECJ-9510-G carb.Could it be ECZ-G which is the same type carb.If you look at Ebay # 140548764255 that is the original replacement needle and seat.Steel with the clip.If you take the round cover off yours to check the inlet needle be careful with the gasket.Can be pretty fragile.Part# on it is 8CM 9945.
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By pcmenten - 14 Years Ago
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It is interesting to read this account of a flooding teapot carb. Some people dispute the reputation that these carbs have, the 'towering inferno' reputation.
You might consider looking for a WCFB Carter 4bbl to replace that Holley.
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By aussiebill - 14 Years Ago
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pcmenten (6/4/2011)
It is interesting to read this account of a flooding teapot carb. Some people dispute the reputation that these carbs have, the 'towering inferno' reputation.
You might consider looking for a WCFB Carter 4bbl to replace that Holley.Just out of curosity, Does anyone know what CFM both carb types flow?
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By oldcarmark - 14 Years Ago
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The Teapot is about 400CFM as I recall.I replaced mine with a 390 cfm Holley.
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By Kahuna - 14 Years Ago
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Something to also look for/at. With the air cleaner removed, there is a brass screw about 3/4" in diameter that is angled and located on the fuel inlet side of the carb at the top. If this screw comes loose, or if the gasket fails, the carb will send fuel out. This screw is the item that gave the carb the "Inferno" name. Jim
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By oldcarmark - 14 Years Ago
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I believe Jim is talking about the access cover to the fuel inlet needle and seat?
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By Kahuna - 14 Years Ago
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Yes, that's the one. On my engine when I started it in the chassis, I had that problem. I was sure that I had replaced the gaskets on both carbs when I rebuilt them, and I had. BUT, both were leaking. I stopped the engine, removed both plugs/screws and put new gaskets/washers on with a bit of Permatex and problem solved. A bit scary, as I wasn't the one that noticed it. Could've been a big problem. Jim
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By oldcarmark - 14 Years Ago
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One of the things that Hoosier pointed out to me was this.People had a tendency to overtighten the stud in the centre of the top.When this happens the top ends up pulling up on the edges much like what happens when you overtighten the valley pan.The top should be checked for "flatness" as the casting will become permanently twisted over time..
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By DANIEL TINDER - 14 Years Ago
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Kahuna (6/5/2011)
Yes, that's the one.
On my engine when I started it in the chassis, I had that problem. I was sure that I had replaced the gaskets on both carbs whenI rebuilt them, and I had. BUT, both were leaking. I stopped the engine, removed both plugs/screws and put new gaskets/washers on with a bit of Permatex and problem solved. A bit scary, as I wasn't the one that noticed it. Could've been a big problem.
Jim
FYI: They now sell a replacement cover with "O" ring gasket. Allows for removal to service needle/seat without the need to replace hard-to-find gaskets.
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By oldcarmark - 14 Years Ago
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Who sells the replacement covers?Sounds like a great product.
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By suede57ford - 14 Years Ago
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My Teapot Boils over regularly on my VR57 Supercharged Sedan when the weather get over 85 degrees. It actually floods the engine. It is heat/fuel related in my situation, and only does it on very warm days. It is due in my situation to the heat soak after the car is shut off and the fuel in the carb boils over, just like dirt under the needle and seat. My issue is cause by the modern fuel having a low boiling point, I live at 3200ft elevation, the blower heats up the air in the bonnet, and the heat cannot excape the bonnet when the engine is shut off or sitting in high heat traffic situations. I have a return lines and a fue;l pump controller to slow the pump at low rpms. I have dealt with this for years on this car. I drive it so often that it is a problem during really hot weather, especially when I am running errands, and it boils over after sitting a few minutes. I have tried every needle seat and different float levels and phenolic spacers. I have a switch on electric fuel pump and shut off the the pump when it floads the carb. I have to shut off the pump and hold the gas down to clear the flooding until cool fuel get back into the carb. My '57 t-bird has the same fuel boiling issue on really hot days as it has a 460 under hood.
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By DANIEL TINDER - 14 Years Ago
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oldcarmark (6/6/2011)
Who sells the replacement covers?Sounds like a great product.
CASCO. Part # 9944A-$14.69. I think, made by a Chgo. T-Bird club member machinist.
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