Holley NH center drain carburetor

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Corey Walker
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Holley NH center drain carburetor

Post by Corey Walker » Fri Jan 14, 2022 12:38 pm

Short arm style, new viton tipped needle and seat, float, spray nozzle, choke spring, passages cleaned and sealed with set screws, reconditioned spray needle, test run. $175 postpaid to continental USA. email: wlkma9@gmail.com
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Corey Walker, Brownsboro, Texas


SurveyKing
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Re: Holley NH center drain carburetor

Post by SurveyKing » Fri Jan 14, 2022 3:47 pm

Corey, can you tell me when the short arm verses the long arm change was made and why?

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Corey Walker
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Re: Holley NH center drain carburetor

Post by Corey Walker » Fri Jan 14, 2022 6:08 pm

Around 1923, the same time the center drain started but there was some overlap where the long arms remained for a while. At first the added 2 slots to the bottom of the casting to let the gas drain, then they changed the casting altogether to make it so the air bleed under the id tag required only drilling one hole. I’m not sure why they changed. Maybe to save a little material since they were simplifying it. The old style air bleed had one crossways hole drilled then plugged.
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Corey Walker, Brownsboro, Texas

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Topic author
Corey Walker
Posts: 592
Joined: Sun Jan 06, 2019 11:46 am
First Name: Corey
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* REQUIRED* Type and Year of Model Ts owned: 1914 runabout, 1921 homemade truck, 1921 Speedster
Location: Brownsboro, TX
MTFCA Number: 51502
Board Member Since: 2007

Re: Holley NH center drain carburetor

Post by Corey Walker » Fri Jan 14, 2022 8:24 pm

Carburetor is sold.
Corey Walker, Brownsboro, Texas


SurveyKing
Posts: 449
Joined: Thu Jan 10, 2019 8:36 am
First Name: Daniel
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Re: Holley NH center drain carburetor

Post by SurveyKing » Sat Jan 15, 2022 9:50 am

Good info Corey, so for my 1924, which is correct, the long or short arm?

Dan


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Re: Holley NH center drain carburetor

Post by speedytinc » Sat Jan 15, 2022 10:18 am

short. short.

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