Gardner Engine Output Raised
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THE most important alterations to the Gardner range of oil engines since the introduction of the LW series in 1931, have been made by Norris. Henty and Gardner. Ltd.. Patricroft, Manchester. For the first time since the origin of the series, the rating has been altered.
Modifications enable the units to develop some 10 per cent. more power at about 5 per cent. lower specific fuel consumption rate, but the new equipment will be capable of being applied. in the form of replacements, to any LWseries engine produced after 1931. Thus. subject to supply and demand, users will be able to modernize the performance of serviceable power units.
A new six-cylindered horizontal underfloor model, which will be known as the 6H LW. has been introduced to meet the needs of operators and manufacturers of passenger vehicles, and this type will be incorporated in several new
chassis (including the Guy described above) to be seen at the Commercial Motor Show.
In general. this power unit will have characteristics similar to those of the 6LW and will incorporate many of the same components. Bore and stroke of the new model remain at 4/ ins, and 6 ins, respectively, giving a swept volume of 511 cubic ins. (8.4 litres) and a Treasury rating of 43.5 h.p. Full-power rating is 112 b.h.p. at 1,700 r.p.m. At 1.490 lb.. the weight is 50 lb. more than that of the normal 6LW model. A full description of this unit will appear in the next issue.
Modifications to general design include a Type 8 exhaust manifold to give better volumetric efficiency and improve scavenging, and a Type L.O.E.X.8. piston, which will become a standard replacement and has been planned to run cooler and generally to keep pace with increased efficiency.