The Cole Story
Howard Cole Senior was the Midlands distributor for JAP Speedway and
Grass Track engines and also operated a repair and tuning service. Through
his wealth of experience he knew all the strengths and weaknesses of the
engine. The speedway JAP was prone to oil leaks and dirt could easily find
its way inside the engine, often leading to a major mechanical breakdown?
so, Cole designed and built his own speedway engine, based on the JAP unit.
He set himself a brief to make the engine more reliable than the JAP and to make an engine that needed less servicing. The Cole engine featured fully enclosed valve gear, stronger castings, a redesigned barrel with liners for the piston and the push-rods and a stronger steel con-rod, which had always been a weak spot on the JAP engine. Many of Cole's new parts were interchangeable with the JAP items.
Cole had three different cam profiles available for his engine and there was an option of having magneto or coil ignition. The coil equipped engine had a different timing case to house the points. The compression ratio could also be changed to suit the conditions by using one of three compression plates between the barrel and cylinder head .
The engine was readily available for the start of the 1972 season and
cost ?185 for the coil ignition version or ?195 for the magneto version.
The Cole engine found infamy in following years with the revelation that
some engines actually measured 600cc!
In previous years, Howard Cole Senior had produced a number of mini-speedway
bikes for his motorcycle mad son, Howard Cole Junior. The first of these,
produced in the 1940s, was a perfect scale replica of a post-war speedway
chassis, right down to the miniature Webb forks. The most interesting feature
of the bike though was the "lay-down" engine, a good forty years ahead
of its time.
Howard Junior was the mascot at Birmingham and Wolverhampton speedway in the 40s and 50s, and would ride his mini-bikes wearing full leathers and a helmet bearing his initial "GHC" (his full name was George Howard Cole). Howard junior progressed to full size bikes and actually took to the track at the age of 15 under the assumed name of "Kid Bodie". Unfortunately for him, his headmaster was a keen speedway supporter and rumbled him. Once he had turned 16 Howard Cole Junior fulfilled his ambition to become a speedway rider, turning out for Wolverhampton, Stoke, Long Eaton (1965), Cradley Heath (1966), Kings Lynn (1967-1972) and back to Cradley again (1973-74) before retiring from the sport. His spell at Kings Lynn was his most successful, becoming a recognised heat leader and reaching the World Final in 1969. I have it on good authority that Howard Cole Junior has since emigrated to Australia where he works as a schoolteacher, I wonder if any of his pupils "bunk off" to race motorbikes?
as a challenge to the JAP and JAWA engines, but the COLE
machine never became a great speedway success. Many riders however, were
to use the the illegal COLE 600cc motors
The Elstar machines are probaly better known for their grasstrack machines, but they made also very good speedway machines. This one (Right) is mounted with a British COLE engine.
Engineering maestro Neil Street turned
his attention to the Grass Circuits and fitted his four valve conversion
unit (as fitted to the JAP 350, 500 Short stroke and 4B motors) onto a
350cc Cole motor.
The picture (LEFT)
shows Neil alongside his converted Cole motor at the 1977 Midland Motorcycle
Show and was kindly sent to me by Mike Robinson.
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