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Are You Unbalanced?

Posted by Carl Amundsen on 8th Oct 2014

WEDNESDAY, OCTOBER 29, 2003 Are you Unbalanced?By Carl AmundsenSeveral years ago when we were developing our crankcase ventilation system for the Tecumseh Star engine, I got some seat-of -the-pants experience with the value and need of crankshaft balancing. I was accustomed to driving a 3” bore, 3” stroke test engine, which had one of our billet crankshafts in it. The 3x3 crank had been balanced, and ran very smooth considering it was producing …
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Setting Ignition Timing

Posted by Tom Cole on 8th Oct 2014

THURSDAY, MAY 8, 2003 Setting Ignition TimingBy Tom ColeAlmost every day someone calls or emails us asking how to set the ignition timing on their engine. It is an important topic because as little as one degree can be the difference between an engine that runs up front and an engine that sputters and pops its way to last place. In this article, I am going to describe what I believe to be the most accurate and reliable method to set the timing o …
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Oil Clearance Is Not A Myth It Is A Calculation

Posted by Carl Amundsen on 8th Oct 2014

TUESDAY, FEBRUARY 8, 2000 OIL CLEARANCE IS NOT A MYTH IT IS A CALCULATIONBy: Carl Amundsen Date:2/8/2000Over the years I have had many opportunities to discuss oil clearance with engine builders. Some are building for their own use, some are small shops while some are large. In any event when the question is posed "HOW DO YOU KNOW WHAT YOUR OIL CLEARANCE IS?" the responses vary. Some can give a good mathematical response, some don't have a clue. …
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Does It Matter

Posted by Carl Amundsen on 8th Oct 2014

Does It Matter? A common sense approach to engine building.Historically, human nature has taught us two basic things about the question "Does It Matter ?"1 - If a problem exists, and we have the capability to correct it, we tell the world "It Does Matter".2 - If we don't have any interest or desire to correct a problem, we either keep our mouths shut or simply say "It just doesn't matter".PREFACEThis article could have been greatly expanded into …
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Probable Cause of Most Rod Failures

8th Oct 2014

TUESDAY, JUNE 1, 1999 Probable Cause of Most Rod FailuresTo help prevent engine failure, here's a few tips:For the most part, a quality billet connecting rod doesn't just break. There are several things that can really shorten the life of a rod of which bearing clearance is probably the most important and too much is worse than not enough.Visual inspection (or eye balling) is not good enough. The only way to check a crankshaft, rod or bearing is …
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