holley nh carburetor – Model T Ford Fix

After January 1, 1919 the center door sedan was built only with an electric starter, battery and full charging equipment. The price was $875, Ford built nearly 25,000 of them as popularity of the closed Fords kept increasing. We have no data as to how many were built prior to the introduction of the self starter, but it was likely about 1/2 the total amount sold for the fiscal year. Note the demountable treaded tires. All four are 30 X 3 1/2″ size, and a spare tire carrier with spare rim was included. Tires were white sidewall both inside and out, with black treads. Bale design door handles were used on closed cars until 1921.

We have decided to combine the model years 1919 – 1922 because the cars were built mostly the same for the entire period after January 1919. The 1919 fiscal year began in August 1918. Model T’s built from August 1, 1918 until January 1919 were essentially the same as late 1918 Model T’s.

The big news in January 1919 was a new engine block with provisions for mounting a generator driven by the camshaft gear. Along with the new engine block and generator were a complete electrical system including an ammeter, battery, and electric starter. To allow the starter to be used a new flywheel assembly was designed which incorporated a ring gear which was driven by the electric starter.

The most common of all Model T carburetors is the Holley NH. It was first used in the 1920 model year, the primary carburetor supplied for all Model T Fords and TT fords. This advertisement shows the earliest version used by Ford which has a so – called “straight thru” venturi throat arrangement. It also uses the earlier style float bowl with side drain.

In this issue we will examine the simplest (and some say best) carburetor ever used on the Model T Ford. The Holley NH was introduced around 1916 as an accessory for the Model T, sold by Holley along with a special intake manifold. Eventually the NH replaced the earlier Holley Model G in regular production some time in 1920. Read on to see what a typical overhaul of one of these carburetors entails.

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The 1919 – 1922 Model T Ford

Rebuilding the Holley NH Carburetor for your Model T Ford