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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 …

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 …

Dual Plane BalancingWe receive lots of calls about balancing and one of the first questions is always, "What is DUAL PLANE BALANCING".If you read the book on it, and you had a background in engineering and physics, you could get a good understanding of it. The two terms that are used in the explanation are Force and Couple balancing. What we are going to attempt to do is reduce all of this down to a non-technical explanation.Lets go back many yea …

The 10,000 rpm BombSeveral times a week we get calls from people that have just exploded their engine and, for the most part, they're looking for answers as to why it happened. On occasion, they'll send us some of the parts (or the whole mess) for evaluation hoping that we can shed some light on the problem. Well - sometimes we can and sometimes we can't.Lets take a moment to consider where it all started and where we are now.We took a 5 hp. lawn …