Carb adjustment knobs with arrow

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Tbird
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First Name: Mike
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* REQUIRED* Type and Year of Model Ts owned: 1912 Delivery Car
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Carb adjustment knobs with arrow

Post by Tbird » Sat Jul 20, 2024 1:51 pm

Guys,
I’m making a run of some carb adjustment knobs with the arrow. I’m using an original knob for specifications.
I already made a small run of these to work out the details. I already need to correct the knurling as it’s a little bit too coarse. I wanted to see if any one else would like to have one… obviously the more people who want one the less the cost would be. I do not have a cost as of yet.
If you want to be added to the list please email me
mikebird@lifeatteridge.net
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KWTownsend
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* REQUIRED* Type and Year of Model Ts owned: late 1911 touring, 1915 runabout, 1919 touring, brass speedster
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Re: Carb adjustment knobs with arrow

Post by KWTownsend » Sat Jul 20, 2024 5:59 pm

Mike-
I have seen some of these in the past. Has anyone confirmed that the locator arrow on the knob is an original design?
-Keith


RGould1910
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Re: Carb adjustment knobs with arrow

Post by RGould1910 » Sun Jul 21, 2024 9:50 am

Its patterned after an original I have on my 1910. The difference between mine and Mikes is mine has a recessed area underneath. Im told the caps for 1911 forward did not have the recess.

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Topic author
Tbird
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Joined: Sun Jan 06, 2019 6:51 pm
First Name: Mike
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* REQUIRED* Type and Year of Model Ts owned: 1912 Delivery Car
Location: Goshen IN

Re: Carb adjustment knobs with arrow

Post by Tbird » Sun Jul 21, 2024 3:38 pm

KWTownsend wrote:
Sat Jul 20, 2024 5:59 pm
Mike-
I have seen some of these in the past. Has anyone confirmed that the locator arrow on the knob is an original design?
-Keith
Keith, ditto on what Richard said. I have seen a couple other pictures of a knob with the arrow as well.


ahovey
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Re: Carb adjustment knobs with arrow

Post by ahovey » Sun Jul 21, 2024 5:16 pm

Here are pictures of the carb knobs on two original 1911 model year cars, a July and May car both with the two screw mount on the firewall.

I can't speak explicitly for 1910 cars but my understanding is that the earlier knobs may have an undercut in them.

The photos I am attaching are both flat on the bottom and both include the arrows. over the years polishing has slightly diminished them, but they are both clearly visible.

The arrows do not seem to have a great deal of consistency in their location, but they are stamped and can be used as an estimate for your mixture.
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