Starter grounding link, an important improvement.

Builders,

Learn something most people do not know: Anodizing, the surface finish seen as the Gold color on our parts, is a very effective electrical insulator. You can put a multi-meter on it and test this if you doubt it. It is really magic to me how something as conductive as aluminum, can be fully electrically isolated my a microscopically thin chemical conversion layer, but it is.

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All it takes it bolting the part down, and generally the fasteners, particularly lock washers and pipe threads will cut through the outer layer and make the part conductive. However, on our 2400-L Starters, we have been extensively anodizing the brackets, and on some of them powder coating the main plate and the nose. This has lead to some of them having difficulty getting a solid ground path, even though they are bolted directly to the motor.

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The solution is this little grounding link made from #4 wire and two copper fittings. It connects the 3/8″ starter stud directly to one of the bolts mounting the 5th bearing housing to the engine case. The standard oil cap shows how small the part is.

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Above, the link installed on a 3.0 liter Corvair. This bypasses all the anodized brackets. and lets the current flow into the case, and back to the Engine Ground Cable at the rear of the engine. Why this is important: Although the starter is tiny, it is very powerful, and it can use more than 300 amps at full load (the Corvair doesn’t typically demand this of the starter) If the motor does not find a solid ground by the time it engages, it will actually try to ground through the crankshaft, making impressive sparking where the flywheel teeth meet the starter. Heavy metal pyrotechnics aside, it is terrible for the engines bearings to do this even for a moment. The perfect small solution is the little grounding link. We are including them with all of our 2400-L starter kits now, but if you have a 2400-L series starter, we encourage you to install one.

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-wewjr.

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1960, A great year of American manufacturing.

Builders,

Vern and I worked in my shop today making parts for CC #39 and for stock. It was a record warm day here, 85F, but there was a nice breeze all day. When taking a break to throw lunch on the grill, we spent a few minutes at my back yard range with a magnificent piece of American hardware made in 1960. A Colt Python

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Above, 1960 was the very first year of GM producing the Corvair. It was a very innovative design, it was awarded “Car of the Year” by Motor Trend. This Python was made by Clot the same year. Pythons started production in 1955. You will get some argument from S&W 686 fans, but the Python is arguable the finest revolver ever made. The 57 year old example in my hand is worth several thousand dollars. The round in my palm is a .357 magnum, itself an American classic from 1935 and still a very useful powerhouse today.

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Above, Detail on the barrel. It is comparatively easy to shoot with great accuracy, even with full power ammunition. It is a perfectly engineered masterpiece, from an era when companies had great pride in their reputations, and their craftsmen were encouraged to design and make outstanding products that would last. They make plenty of good firearms today, but it is very hard to imaging most of them holding an interest  57 years from now. The same point can be made about the Corvair engine headed to power your aircraft. Some people understand classic things, other people just like consumer stuff. To each their own, but I know what I personally think is worth my attention.

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Above, a size comparison, Python vs. Corvair cam gear. It fills the hand but doesn’t seem heavy nor awkward. Next time you are looking at an aviation magazine and studying the stuff presented as “new and exciting” ask yourself it anyone will be using it in 5 years, far less 50.

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-wewjr.

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Deal of the Day: Old style starter, $300 (SOLD-in 12 minutes)

Builders,

Cleaning up before CC #39: The last of the 2401 starters we sold from 2003-2015. It is a bit heavier than a 2400L, but this one is a deal at less than half price.

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Includes: New starter with fine gear, a set of brackets, a CNC tail bracket, and a top cover powder coated matte black. (Builder would still need to buy a ring gear from our regular products page, it is a little over $100)

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Conditions: You buy it, it is yours. I am selling this because we are only building and stocking 2400L starters now, and I want to simplify the stock. If you like to make dramas out of things by asking if it comes in different colors, if you can put it on lay away, if you can return it if your cat doesn’t like it, etc, it is not for you. It is for someone who wants to save some money on a very proven starter system without adding any drama to my life this week.

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Who gets it: The first guy who write into the comments section saying “I will take it”. After doing so send me your phone number and address to WilliamTCA@aol.com.

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Is it sold already? I don’t know, read the comments section and find out.

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Above, the stuff on my work bench tonight.

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-wewjr.

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