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Old 07-26-2020, 01:32 AM   #1
deuce lover
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Arrow Uncle Max Carb Quality

Just want to share this with you members. I sent these super rare French 81's to Max for servicing. Beautiful workmanship.
Attached Images
File Type: jpg Geoffrey's 22.2, 1.jpg (50.6 KB, 155 views)
File Type: jpg Geoffrey's 22.2, 2.jpg (52.7 KB, 153 views)
File Type: jpg 0-5.jpg (41.6 KB, 157 views)
File Type: jpg 0-6.jpg (31.1 KB, 150 views)
File Type: jpg 0-7.jpg (46.7 KB, 137 views)
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Old 07-26-2020, 05:40 AM   #2
Terry,OH
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Default Re: Uncle Max Carb Quality

Zenith Stromberg, very interesting, thanks for the post.
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Old 07-26-2020, 06:03 AM   #3
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Default Re: Uncle Max Carb Quality

Wow! Those are unusual. If the 22.2 ,I think I see, is representative of millimeter venture diameter those are between the 81 and 97 size and something new to me.


Fully agree with Uncle Max being high quality only.
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Old 07-26-2020, 06:55 AM   #4
deuce lover
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Default Re: Uncle Max Carb Quality

I learned from Max that the 22.2 in metric translates into 81.When I Googled the 22.2mm to inches it came up .87. I have found the French 97's that are 24.6 and the 48's which are 26.2. Our fond friend Bruce Lancaster got that 24.6 from me a few yrs ago. The 24.6 are even rarer ,seen 1 other in last few yrs.Lots of 26.2's as they were military with a governor .Each carburetor also had a serial number stamped on the flat raised area of the bowl .Last pic shows the side of the bowl detail.FYI,Embossed on the side of the bowl under Zenith/Stromberg is this and below that "fabrique en France" (made in France)



Breveté SGDG

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Breveté SGDG on an Ariston music player


Breveté SGDG was a French type of patent that ceased to exist in 1968. The name was a common abbreviation for "Breveté Sans Garantie Du Gouvernement“ (patent without government guarantees).
Background

France and Belgium maintained a system of simple registration of patents. It was believed that patents registered in this way are free from any liability from the government perspective.
In France, the law of 1844 states that patents are issued "without prior examination, at the risk of the applicant and with no guarantee of function, novelty and merit of the invention also in terms of precision or accuracy of the description".[1][2][3][4]
In Belgium, a similar regulation was in place in article 22 of the 1984 Patents Act,[5] and, as of 2019, is still in place.[6]
Attached Images
File Type: jpg Metric 97 1.jpg (149.3 KB, 38 views)
File Type: jpg Metric 48 1.jpg (36.6 KB, 39 views)
File Type: jpg Metric 48 2.jpg (27.6 KB, 38 views)
File Type: jpg Metric 48 4.jpg (43.6 KB, 38 views)
File Type: jpg 1st 22.2, 2 (1).jpg (43.6 KB, 31 views)

Last edited by deuce lover; 07-27-2020 at 01:48 AM. Reason: added pic
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Old 07-26-2020, 09:08 AM   #5
TomT/Williamsburg
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Default Re: Uncle Max Carb Quality

Uncle Max is one super nice guy and he knows his 97s - hope to see you again, soon Max!

All the best,
TomT
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Old 07-26-2020, 10:21 AM   #6
Mart
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Very nice, and I saw something today I never even knew existed. Thanks.
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Old 07-26-2020, 11:06 AM   #7
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Default Re: Uncle Max Carb Quality

Quote:
Originally Posted by deuce lover View Post
Just want to share this with you members. I sent these super rare French 81's to Max for servicing. Beautiful workmanship.
Really nice work! Looks like you swapped out the linkage to the standard Stromberg 97 style stuff - were the whole bases changed over?
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Old 07-26-2020, 11:17 AM   #8
deuce lover
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Default Re: Uncle Max Carb Quality

Here is a pic of the bases.I think he reused them as they(81's) have smaller venturi's.They originally have a vacuum port between the adj screws.
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File Type: jpg 0-8.jpg (41.9 KB, 63 views)
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Old 07-26-2020, 11:52 AM   #9
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Default Re: Uncle Max Carb Quality

Some nuances: The bowls have 97 size major venturis; the bases are counterbored from the top to accept the bigger venturi, and use 81 size throttleplates. The bowls have no slot in the powervalve chamber, but instead have two bleed holes - a good idea to prevent crimping the leather of the 81 size accelerator pump. Factory jets are .038" with #69 powervalves. The bare bowl casting was noticeably heavier and weighs 2-1/2 ounces more than an original 81. Probably due to more modern pressure die casting. All the machine work is incredibly precise. Stout, tapered boss for the fuel inlet. Two or three vacuum holes in the base and bowl needed to be plugged for hotrod service. The crude kicker linkage was put in the trash. All in all, challenging and fun!
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Old 07-26-2020, 11:53 AM   #10
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Default Re: Uncle Max Carb Quality

Just a note of interest too, is that the French Zenith has nothing to do with the old Zenith Carburetor Company that was in Detroit, MI. (Now in Abbingdon, VA)

Sal
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Old 07-26-2020, 08:13 PM   #11
Jeff/Illinois
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Default Re: Uncle Max Carb Quality

Nice! Good job on those, good work

Only problem I would have would be, they are too nice to get dirtied up I'd display them in an old time Ford Parts Dept. display !
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Old 07-27-2020, 02:21 AM   #12
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Ain't no lie........Max is the guy !
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Old 07-29-2020, 12:03 PM   #13
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Default Re: Uncle Max Carb Quality

Yep, Max knows his 22.2's!
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