Lanlivery show , near st austell . Cornwall
 

Commer TS3 2 Stroke .

I drove this type as a dustbin lorry for local Council
with a ram unit on back .

Photo taken by me .

Tony

Attachment 4041

The engine was unusual in being an opposed piston engine where each horizontal cylinder contains two pistons, one at each end, that move in opposition to each other.[4] Even more unusually, both sets of pistons drove only a single crankshaft; most opposed piston engines have a separate crankshaft at each end of the cylinder. The TS3 engine used a single crankshaft beneath the cylinders, each piston driving it through a connecting rod, a rocker lever and a second connecting rod. The crankshaft had six crankpins and there were six rockers.[5]

The engine was a two-stroke, of compression-ignition with uniflow-ported cylinders.[5] Scavenging was performed by a Roots blower,[note 1] which was mounted on the front of the engine and driven by a long quill shaft from a chain drive at the rear of the engine. In general the engines gained a reputation for good performance, but this quill shaft was somewhat prone to breaking if over-worked.

Tony

Those engines had a very distinctive sound and most local authorities seemed to use them for street cleaning, drain flushing and rubbish collection duties.

Dartskipper .

i drove them for Truro Rural District Council . Cornwall in the days of the galvanise dustbins .
The two strokes you couild tell because they had the twin headlights .

fitted with a ram unit on the back .
As you say they had a distinctive sound on the exhaust , our lorrys
had the exhaust going up the back of the cab just above the cab .
long distance ones at night going thought a quite village could hear they coming
a fair distance away
plus in my other post drove a sewerage Commer . out the two the sewerage
job was cleaner , only had to put a pipe in the tank suck it out , bucket of water
after to just clean end of pipe

All the best

Tonmy