The Sum of the Parts

Sunday, November 15, 2009
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While it might be the aim of many engine designers to minimise the chance of any oil leakage by dispensing with the humble rotating shaft seal, it may not always be possible or even desirable. At any point where there is a mechanical take-off in the ... read more
Tags :  engine-structure

Exhausts: Feeling the Heat (2)

Sunday, November 15, 2009
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Last month we looked at the problem of how to contain excessive heat given off by hot exhausts. The problems this heat causes affect not only the engine, but also other systems, particularly electronics. In addition to wrapping or coating the exhaust... read more
Tags :  exhausts

Methods of Pre-loading

Sunday, November 15, 2009
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After having calculated bolt stiffness, or measured the load-deflection curve directly, the best way to calculate pre-load is to measure the extension of the bolt directly. This method is preferred for con rod bolts and all con rod and bolt suppliers... read more
Tags :  fasteners

Two Stroke Tipple

Sunday, November 15, 2009
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Love them or hate them, the two-stroke engine is in many ways far superior to its 4-stroke rival. Specific power, specific weight, manoeuvrability, cost of manufacture, ease of maintenance, durability, NOx emissions and even fuel consumption in the ... read more
Tags :  fuel-system

What goes in must come out

Sunday, November 15, 2009
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It is surely an obvious statement of fact that what goes in, will eventually come out again – somewhere! Filling the bath with water and then watching it drain away again afterwards is an example. The joy of watching the bank balance rise at th... read more
Tags :  oil-system

Avoiding piston micro-welding

Sunday, November 15, 2009
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Keeping a piston’s top ring land from experiencing critical wear is a problem that every engine builder experiences, particularly in the hard fought world of NASCAR Sprint Cup Series competition. Dr Andrew Randolph of Earnhardt Childress Racing... read more
Tags :  pistons-rings

"Mind the Gap"

Sunday, November 15, 2009
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I have to admit that at the moment, visits to our capital city are few and far between. The heart of business and finance maybe the place where many a motor sport deal is done, but the real action as far as I am concerned, is always in the workshop o... read more
Tags :  pistons-rings

Laser Peening

Sunday, November 15, 2009
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The use of amplified light has a great many applications in industry and beyond. Many of us reading this will do so having had our sight improved by laser eye treatment. In terms of the use of lasers in engineering, perhaps the most widespread applic... read more

Addressing the Envelope

Sunday, November 15, 2009
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Today is the first of many strikes, or so we are told. The continuing dispute between management and unions in the Post Office has resulted in this, the first of a number of planned one-day stoppages across the UK on which the mere thought of reachin... read more
Tags :  test-equipment

Trends in Race Clutch Design

Sunday, November 15, 2009
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The traditional race car multi plate clutch is essentially a friction drive that transmits engine torque into the transmission itself. Layers of plates are alternately geared to the clutch housing, which is bolted to the engine flywheel and also to t... read more
Tags :  transmission
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