Flat 6 Carbs
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From: Tucson Arizona
Flat 6 Carbs
Flat 6 Carbs,
I have a leaky (seems to be the norm) 1 bbl 7HT carb on my flat 6. The carb has been rebuilt to the point of destruction. Should I find something better? Or replace it with the same kind? I found one for 155$ online at vintage speed. I would kind of like to find something a little more modern.
Any insight would be greatly appreciated.
I have a leaky (seems to be the norm) 1 bbl 7HT carb on my flat 6. The carb has been rebuilt to the point of destruction. Should I find something better? Or replace it with the same kind? I found one for 155$ online at vintage speed. I would kind of like to find something a little more modern.
Any insight would be greatly appreciated.
Ford Parts Specialist
Joined: Nov 2006
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From: Simi Valley, CA
That's the best looking Corvair engine I ever saw...what an improvement over the original.
Or is it the flat 6 Franklin air-cooled engine used in the Tuckers?
It might be a Carrera engine.
Flathead, Flat, L-Head = all old terms, mean the same thing.
There was even a car company that made a Flat 6 rotary engine once. This rotary had a stationary crankshaft, the engine revolved around it...and it was air-cooled!
Now, if you have an F or T head...whatta ya got?
Henry experimented with a 8 cylinder engine in the shape of an X.
Or is it the flat 6 Franklin air-cooled engine used in the Tuckers?
It might be a Carrera engine.
Flathead, Flat, L-Head = all old terms, mean the same thing.
There was even a car company that made a Flat 6 rotary engine once. This rotary had a stationary crankshaft, the engine revolved around it...and it was air-cooled!
Now, if you have an F or T head...whatta ya got?
Henry experimented with a 8 cylinder engine in the shape of an X.
Last edited by NumberDummy; Jun 16, 2007 at 01:43 AM.
Logistics Pro
Joined: Feb 2005
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From: Upper Left Coast
I think I would stick with the original carb....just rebuild it.
The "flat" six above, is of course a Franklin 6A-350 aircraft engine. Rated 220 HP at 2800rpm.
Not unlike the one that Tucker used...
The "flat" six above, is of course a Franklin 6A-350 aircraft engine. Rated 220 HP at 2800rpm.
Not unlike the one that Tucker used...
Fleet Owner
Joined: Jul 2004
Posts: 27,288
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From: NM
Unfortunately, few small-bore American carbs were designed to accurately meter fuel. They all seem to have been designed primarily to be dirt cheap. The only really nice 1-barrel or two barrel carbs are European ones, like Webers and some Solex. They are at the other extreme, very complicated and tuning them costs $$$$. The more modern Japanese carbs are very nice, but they are for much smaller engines.
My experience with the Holley 1-bbl and 2-bbl carbs from the '50's is that if a rebuild kit doesn't cure the problem, you should look for a different one. Whatever it is that is wrong with them is most easily cured by getting a different one. Personally I like the Carter carbs used on GM cars of the period, for instance the 2GC, which is a big 1-bbl. or the '60's Ford Autolite 2-bbl carbs used on V8's.
My experience with the Holley 1-bbl and 2-bbl carbs from the '50's is that if a rebuild kit doesn't cure the problem, you should look for a different one. Whatever it is that is wrong with them is most easily cured by getting a different one. Personally I like the Carter carbs used on GM cars of the period, for instance the 2GC, which is a big 1-bbl. or the '60's Ford Autolite 2-bbl carbs used on V8's.
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From: Tucson Arizona
Over-rebuilt
The old one has been rebuilt to the point of destruction.
When I got the truck 4 years ago I rebuilt the carb. It worked okay for a little while. It always leaked. The previous rebuilders used too much force (a 1/2 drive impact wrench apparently) to tighten everything. Every screw on the bowl cover has been drilled through for a nut on the bottom. Possible leaks here you think? Absoluteley! I think it is beyond another rebuild.
I will look into the other carbs mentioned for replacements. Or find one of the same which is new or newer.
If anyone else has any ideas please let me know. Or where to look for a new one.
Thanks everyone.
When I got the truck 4 years ago I rebuilt the carb. It worked okay for a little while. It always leaked. The previous rebuilders used too much force (a 1/2 drive impact wrench apparently) to tighten everything. Every screw on the bowl cover has been drilled through for a nut on the bottom. Possible leaks here you think? Absoluteley! I think it is beyond another rebuild.
I will look into the other carbs mentioned for replacements. Or find one of the same which is new or newer.
If anyone else has any ideas please let me know. Or where to look for a new one.
Thanks everyone.
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I wonder if you could adapt the V8 model 94 to the manifold? Not that they are trouble-free, but there are lots of them around...
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Fleet Mechanic
Joined: Jun 2004
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From: Minnesota
I bought three of them off of Ebay and rebuilt two of them myself. They are fairly easy to rebuild, I took pictures with my digital camera before and during removal. The third is in a box for parts just incase. A rebuild kit was ~$15.00 there is not much to one of these carburetors.