Piston ring blow-by

Wednesday, February 16, 2011
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After all this talk about the different types of piston rings - barrel, scraper, taper scraper and not forgetting of course the oil control ring - how do we assess their effectiveness and, perhaps more important, how do we know when things are starti... read more
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The gapless ring

Thursday, December 16, 2010
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It may sound obvious, but to assemble a piston ring into its grooves in a traditional two- or three-ring piston will require the ring to be split at some stage during manufacture. Placed on some form of mandrel and heat treated thereafter to an out-o... read more
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Avoiding piston skirt wear

Wednesday, November 10, 2010
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One series where engines see tumultuous life is the World of Outlaws winged sprint car campaign in the US, with 60 contests coast to coast that keep competitors far away from their engine builders - sometimes for a month or more. So to help their cu... read more
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The Napier ring

Wednesday, November 10, 2010
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Mention the word 'Napier' to many people and the chances are you will be met with a quizzical stare. To some, mainly engineers and scientists with an interest in history, they will talk of John Napier, the 16th century scholar and inventor of logarit... read more
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Honing pistons to perfection

Tuesday, September 28, 2010
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When General Motors got out of the National Hot Rod Association's (NHRA) Pro Stock division a couple of years ago, it left behind a multitude of competitors using two of its engines in competition. The DRCE3 engine, newer than the DRCE2, has been the... read more
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Over a barrel

Tuesday, September 28, 2010
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The increase in demand for specialist designer beers has led to a steady business in the supply of stainless steel barrels - or so we are told. Forsaking the traditional wooden barrel, which in the spirits and wines business is often known to add a c... read more
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The ductile iron ring

Tuesday, August 17, 2010
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Lest you think Fig. 1 here is the remnant of some form of horrific engine blow-up, let me explain that what you are looking at is a ductile iron piston ring. Twisted and bent to all manner of shapes the resulting contortion demonstrates vividly how f... read more
Tags :  pistons-rings

Securing piston life

Friday, July 02, 2010
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Getting long life from a racing piston that is subjected to 8000 hp is not easy. Every trip down the 1000-foot dragstrip used by NHRA's Full Throttle Drag Racing Series means a modicum of damage to an engine and, with the pistons, damage is a way of ... read more
Tags :  pistons-rings
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