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Old 07-29-2019, 10:08 PM   #21
cas3
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Default Re: Identifying carburetors

mart, things could get confusing in your shop!, david g, yes, post # 9 was only intended to be a reference to the bore size, not the complexity of a 48. sorry to any who may have been misled
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Old 08-01-2019, 09:08 PM   #22
Bubsyouruncle
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Default Re: Identifying carburetors

Mart, you have mentioned a serious problem for us old timers, but might not have noted why. You are UK. You are metric. We are not.



The rest of the world, all 6 billion of them, are metric. We, all 300 million or so, who have cars built to the imperial system, are not. Guess where that puts us? On the back end.


When we buy parts for our old clunkers that are manufactured elsewhere, (and many, many of the local folks are metric), they try to accommodate, but standards and other stuff gets in the way and they don't fit quite right. Because they are using metric tooling to get close to inch series parts.
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Old 08-01-2019, 09:14 PM   #23
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Default Re: Identifying carburetors

Carbs
Stromberg 48 times 2 equals 96 plus 1 equals 97! Is there a something there?


Seriously, Are they so similar that body parts from one could be combined with parts from another that you could have a cast iron lower part combined with a 40 central part combined with a 97 upper part?


Because that is what I think I have.
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Old 08-02-2019, 06:45 AM   #24
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Default Re: Identifying carburetors

Over the years it often happens that 40, 48 and 97 parts and pieces are interchanged bolted together and sold on a vendors table at a swap meet. You have to know what your looking at or deal with a highly respected seller.
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Old 08-02-2019, 09:45 AM   #25
Vintage Copper 47
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Default Re: Identifying carburetors

Quote:
Originally Posted by Mart View Post
I'm old enough to have been taught all the old units and witness the gradual but incessant metrication by stealth that is taking place. I still think in inches and my lathe and milling machine have imperial graduations.

Thanks for pointing it out.
I will never agree to go full metric! However, that being said, I can still land a 40 mike mike grenade into a 50 gallon oil drum at 400 meters on the first shot.. using a tried & true M-79 grenade launcher.. those under barrel M-16/M-203 just have too much wiggle play to be so accurate!
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Old 08-02-2019, 03:06 PM   #26
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I don't understand, Walt. Maybe if you give the drum size in Liters, it will calculate

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Old 08-04-2019, 08:22 PM   #27
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Default Re: Identifying carburetors

So
The 40, 48, and 97 share common cast parts.

and can be bolted together to make competent (sort of) carburetors.
We shall see . . .
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Old 08-05-2019, 07:37 AM   #28
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Default Re: Identifying carburetors

They do not share common cast parts. There is a long list of differences in the castings, some insignificant and some important. plus there are two different 97s one marked "ELMIRA, NY" and another "SOUTH BEND" these two Carbs have additional casting differences
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Old 08-05-2019, 11:39 PM   #29
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Hi; that external float vent carb is correct for engines with crank mounted fans, i understand. Old posts mentioned problems with air pressure [flow] from top mounted fan installations. A desirable carb for the correct set-up. Walked down a Concours V8 line and marveled at the '40s without that carb. Newc
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Old 05-27-2021, 08:04 PM   #30
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To get back, sort of, to my original question, where do I find an economizer valve for my Ford or Holley carb that will not leak because of the ethanol in modern fuels?
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Old 05-27-2021, 08:07 PM   #31
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Daytona Parts Co. daytonaparts.com/index.html
World Class Carburetor Restorations and Carburetor Kits
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