The CD single cylinder and CE twin cylinder engines were the first of the series to be built with a range of accessories
and marinisation as standard. A wide range of flywheels and mountings for generating set use
was available, and in common with others in the current range they had radiator or tank cooling options. Another feature was the totally
enclosed nature of the engine, against the 5/1 CS series where the pushrods etc were exposed.
Both engines used common parts, although both head and blocks were different. Injection equipment was Bosch-CAV, although with the
outbreak of WW2, CAV was left as sole supplier until Bryce was able to ramp up production to meet the increased demand. Many new features
such as full rocker gear lubrication were introduced on the CD/CE, as was the higher operating speeds of 1000/1200 rpm (in common with the JP)
and other measures to enable long running periods without operator attention to be achieved, such as chromed liners (direct in the block on the 5/1 CS)
Most production ended up being produced in the war years, and many of the engines were supplied as generating set engines, for which Lister
was able to provide many accessories and automatic starting panels from its experience with the Lister-Bruston sets. Those sets supplied to the UK Post Office
have provided most of the CE engines in preservation, although they do turn up as auxiliary generating set engines from marine applications.
Technical Details:
Bore & Stroke: 4.5" X 4.375" 7hp at 1000 rpm (CD) | Weight (tank cooled less tank & water) 980 lbs | Weight (rad cooled, less water) 1046 lbs
Bore & Stroke: 4.5" X 4.375" 14hp at 1000 rpm (CE) | Weight (tank cooled less tank & water) 1372 lbs | Weight (rad cooled, less water) 1428 lbs
Collectibility/Availability:
These two models have never attracted much interest in the restoration field, and as a consequence, spares are not easily sourced
as most engines are scrapped. Engines are turning up in the USA and Australia, but the UK is probably the main source of restorable material. The CD single
cylinder engine is most often found at sales, but it is very often part of a larger unit such as a generator and is low-priced because of the weight of the set
and bedplate. CE's turn up most often from GPO standby sets.
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