Fine Tuning Your Carburetor

Fine Tuning Your Carburetor

Although I have tuned countless carburetors over the years by “ear”, I decided I wanted to make sure I had tuned my trucks new carburetor to be as efficient as possible. Especially since my hearing is NOTHING like it used to be!

Tuning Carburetor With Vacuum Gauge

Tuning Carburetor With Vacuum Gauge

The next step in carburetor tuning is via a halfway decent vacuum gauge. You connect the gauge to a vacuum source – in this case I connected to the line right off the intake manifold that runs to the vacuum advance unit on the distributor. I immediately saw a wobbly reading of approximately 16.5 inches of vacuum. After adjusting the mixture, it rose to a little over 18 (you want to see between 18-20 or so) and was pretty steady. Also, the periodic “puff” in the exhaust decreased, which was good.

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Taking a Powder

Taking a Powder

Even though the truck is stored for the winter, I am fortunate in that I have enough room to continue working on it. So over the past few weeks, I have cleaned up a United partial flow oil filter and an original AC oil bath air cleaner. I then had them powder coated semi-gloss black. Thanks to Jay at Apex Powder Coating in Middleton, WI, they turned out amazing. The air filter media was difficult to clean prior to powder coating, and although I did my best, it still caused quite a bit of smoke at the powder coaters!

Air Cleaner Assembly Prior to Powder Coating

Air Cleaner Assembly Prior to Powder Coating

The air filter is pretty much ready to go now as is. I only wish I could find an original clamp for it. It had a regular hose clamp on it with a thin strip of rubber on it between the clamp and the filter. I will be doing pretty much the same thing for the time being.

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The Evolution of Automotive Design in the 1930s

The Evolution of Automotive Design in the 1930s

The other day I received a very nice note from Terry Jacobs, the owner of an absolutely beautiful 1940 International Harvester D-2 short bed pickup. As we traded thoughts on trucks, he mentioned that he had authored an article that had been published as part of B. Mitchell Carlson’s “Triple Diamond Treatise “, a regular series in Vintage Truck Magazine. The article was originally published in the December 2015 issue, and with Terry’s permission, we have reproduced it in it’s entirety here.

Terry Jacobs' beautiful 1940 International Harvester D-2 half-ton short bed pickup.

Terry Jacobs’ beautiful 1940 International Harvester D-2 half-ton short bed pickup.

You will find the article to be an excellent read, as it provides some excellent insight as to how the design of the International Harvester D-Series came about. I have also added the photo of Terry’s D-2 to our D-Series gallery along with several new images. I try to select images that provide good historical information on our trucks and any accessories that might have been used.

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Winter Storage

Winter Storage

So it’s finally time to put Cornelius away for the winter. I am fortunate enough to have an extra 10 feet at the front of my garage where the truck can be kept and still allow two vehicles to park normally. And while tight, there is also enough room to get at most everything so that I can pull a part or two off for restoration over the winter.

Cornelius in Winter Storage

Cornelius in Winter Storage

I’ve put together a winter storage to-do list that I have compiled from a few sources, and this is pretty much what I’ve followed for Cornelius. Have any thoughts or additions?

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Test Drive

Test Drive

Well the weather finally cleared this past Thanksgiving weekend and I managed to get Cornelius out for a proper test drive. The skies were sunny and blue, and the temperature was a rare 64 degrees in late November! Susan joined me for no less than 25 miles of country driving, at low speeds and high, up hill and down. Cornelius felt smooth and powerful the entire trip, and the idle stayed smooth and even. Acceleration was smooth, with no hiccups or power fade.

Cornelius Out for Test Drive - November 24, 2017

Cornelius Out for Test Drive – November 24, 2017

So after several weeks of tinkering with the stumbling issue, I am happy to report that the fuel supply was the primary problem (we also solved a vacuum issue which also helped immensely – read older posts to see details) and that it has been solved. It was a VERY enjoyable afternoon.

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