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Q Mention has been made in technical articles of...
Page 63 from 4th October 1968A The nominal compression ratio of an engine can be calculated by adding the swept volume to the clearance volume (or volume of the combustion......

Q Is the term "highest useful compression ratio"...
Page 69 from 31st March 1967A No, but the question is an interesting one because the "lowest useful compression ratio" may well be coined to apply to the lowcompression diesel......

Q I wish to test the compression pressure of an automatic
Page 205 from 13th September 1968diesel engine with a gauge. The engine maker will not give this information. Could you advise me how the compression pressure can be calculated?......

Q What is the effective compression ratio of an engine? I
Page 80 from 14th September 1973know that the ratio is calculated by dividing the clearance volume plus the swept volume by the clearance volume. Is effective compression ratio......

Q What is the power loss of an engine with increasing
Page 67 from 26th May 1967altitude? Can the loss be corrected by increasing the compression ratio of the engine? A The reduction in output of a petrol or diesel engine......

0 . The term "highest useful compression
Page 57 from 31st July 1970ratio" is sometimes used in papers of the learned societies dealing with the design of petrol engines. Is it not also applicable to diesel......

Auto Toyota
Page 24 from 6th April 1985TOYOTA is now offering a fourspeed automatic gearbox as an option on its Land Cruiser 4x4. The new automatic box has a 0.717:1 overdrive top gear......

r i What is the difference between octane numbers and...
Page 87 from 18th November 1966A The textbook answer is that an octane number is applicable to a fuel used in a spark-ignition engine and is a measure of its anti-knock property.......

Q Could turbo-charging be applied to a petrol engine to...
Page 147 from 2nd December 1966A Equipping a low compression petrol engine with a turbo-charger might improve fuel consumption by virtue of the resultant increase in low-speed......

Q I understand that a well-known car ferry was at
Page 85 from 3rd October 1969one time powered by semi-diesel engines. Could you explain the principle of the semi-diesel? A The engines you mention must have been produced a......