BK OF THE JAP ENGINE 1927-1952
BK OF THE JAP ENGINE 1927-1952

Author: W. Haycraft

Publisher: Veloce Enterprises, Incorporated

Published: 2016-07-11

Total Pages: 156

ISBN-13: 9781588501394

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146 pages, 70 black & white illustrations, size 5.5 x 8.5 inches. Originally published under a similar title, this book is one of The Motorcyclist's Library series published in the USA by Floyd Clymer by arrangement with the original publishers, Pitman Ltd. of London, England. This publication covers the entire range of J.A.P. Engines manufactured from 1927-1952 with the exception of the J.A.P. two-stroke engines. There is detailed text and diagrams to assist in a major refurbishing plus adequate technical data, charts, service and maintenance information for the repair and overhaul of those various engines. In addition, there are 58 pages that deal exclusively with the J.A.P. powered A.J.W. (1934-1950) and Cotton (1934-1952) motorcycles. As J.A.P. engines were also used by a number of other motorcycle manufacturers, including Brough Superior, Montgomery, Federation, O.K. Supreme etc. and as they were also used to power small trucks, three-wheelers, lawn mowers etc. this book would also be of assistance to the owners of those motorcycles, vehicles and J.A.P. powered equipment. This publication has been out-of-print and unavailable for many years and is becoming increasingly more difficult to find on the secondary market. We are pleased to be able to offer this reproduction as a service to all J.A.P. powered vehicles, equipment, and motorcycle owners and enthusiasts worldwide.

Le Vack's Legacy
Le Vack's Legacy

Author: Brian Thorby

Publisher: Banovallum

Published: 2021-06-24

Total Pages: 132

ISBN-13: 9781911658788

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The largest supplier of proprietary motorcycle engines in the world, J. A. Prestwich & Co (aka JAP), decided to go racing with something unique in 1922. In a matter of weeks, a small team headed by Val Page, aided by Herbert Le Vack, had produced a radical new design - the first British double-overhead-camshaft motorcycle racing engine. With this amazingly advanced engine fitted to a New Imperial frame, Le Vack stunned his competitors at the 1922 Isle of Man TT. From then on the engine and its successors proved invincible - breaking numerous National and World Records over a four-year period. Yet the subsequent world recession, and a world war, consigned these achievements to memory and eventually bestowed upon them an almost mythological status. JAP's engineering archives were discarded, and the handful of engines made might well have been lost too had it not been for a series of enthusiasts. In Le Vack's Legacy, Brian Thorby traces the fortunes of the small number of JAP racing engines and parts that have wandered Europe for nearly a century. Much has been written and illustrated about JAP ohv Speedway and V-twin engines, but almost nothing about their unconventional double-overhead-camshaft brothers - until now. This authoritative new account finally puts aside the myths and sets the record straight.