Tempo 3 wheeler
The Tempo 3 wheeler was launched in India in the late 1950s as a replacement for the handcart (according to an advertisement in The Statesman of Calcutta which I remember reading when I was a schoolboy). The ad said that one Tempo could replace 4 handcarts !
I drove this vehicle in Mumbai in 1973 while working for Hawkins Cookers. It was used to transport cookers from the factory to the dealers in Bombay. It was ideal for this job because the cooker cartons were bulky but light, and there was enough space in the vehicle to carry a whole lot of cartons without loading it excessively.
It was powered by a water-cooled Heinkel two cylinder two stroke engine, of 397cc and incorporating a roller-bearing mounted crankshaft, mounted above the front wheel. It produced a modest 15 bhp, but was enough to propel it from 0-30mph in 28.8 seconds. After the oil crisis of 1973 petrol prices shot up, and the petrol engine was replaced by a Greaves Lombardini 500 cc. diesel engine of Italian origin made in India under license. The petrol engine, on a wide open throttle, was likened by road testers of the day to a roar, "like a swarm of angry bees". Even when loaded, the pace on the open road could creep up to a heady 35mph, with respectable stability (for a three wheeler...) thanks to the Tempo's reasonably long wheelbase.
Drive to the front wheel was via a chain, the engine, clutch, gearbox and radiator all turning with the single front wheel. The tiny fuel tank was alongside the engine, too.
The vehicle featured a steel backbone chassis, running the whole length of the vehicle with the engine pack sitting at the front end and the two rear wheels were on swinging arms pivoted at the central chassis tube. The driver’s cab had two suicide-style doors. The vehicle measured about 13’ 6” overall. Dual springs were fitted up front, with independent suspension (!!). The two rear wheels had two coil springs each, one on either side of the axle hub, with a locator rod connecting the hub to the central chassis. When empty the wheels canted inwards sharply, much like a Standard Herald, and as you put more and more load on the vehicle the rear wheels gradually became vertical, or even canted outwards, The rear axle set-up was later replaced (privately) by a tubular dead axle with two semi-elliptic leaf springs, the idea being to increase the load carrying capacity.
It had a very large turning cycle, as much as a truck, so that one had to plan one’s path very carefully in order to get around in the bazaar areas. This is because the entire front power pack (engine, gearbox, chain-drive and wheel) would turn together when you turned the steering, and the angle to which you could turn the entire assembly was very limited. Just as well, because if you turned the steering fully and tried to go faster than a crawl, the vehicle could topple over ! It happened once inside the Hawkins Cooker factory.
The gear change was, well… strange. The gear lever was L-shaped and stuck out of the dashboard. It would move in and out of the dashboard as the vehicle moved and the front wheel reacted to bumps, or even to the accelerator because when you pressed the accelerator the front wheel moved forward (compressing the front coil springs) and then the rest of the vehicle followed. There were 4 forward gears and 1 reverse in an H-pattern. First was - pull towards you and twist left, second was - twist full right while the lever was towards you, third was on the left but towards the dashboard, away from you, and 4th was to the right and away from you. Gear changes were tricky because the gear lever continuously moved, and there was a lot of play in the shift mechanism. The brake and clutch were mounted on the central chassis tube, similar to those in the old VW Beetle.
It came in a number of versions, starting with a cab and chassis on which one could build whatever body one liked. The most common was a pick-up version, often with an awning on top. There were various other versions, such as low and high roof closed delivery vans.
The ”people carrier” version was much in use in north India. I had seen many around the Punjab/Haryana region. It had two bench seats facing each other at the back. Though nominally meant for six people at the back, and the driver + 1 in the cab, it routinely carried up to 20 people plus a couple of bicycles on top of the canvas roof.
The other Tempo vehicle which was popular at the time was the Bajaj Tempo Viking. It went extinct after the 1973 oil crisis and was replaced by the Matador 305 and 307 models.
Driving this little minibus was fun. It had practically no low end torque, and one had to rev the engine hard to get any power out of it. The overall output was probably about 25 bhp, not much for a 10-12 seater minibus. One had to use the gearbox a lot, and keep it in 2nd and 3rd gear all the time, with the engine revving hard and belching a stream of blue smoke (petrol + oil in the tank, remember). Getting into 4th gear, in the Thane/Mulund area, was an event because one hardly ever reached the 50Kmph speed at which the engine would pull in 4th.
Nevertheless, the gearbox was very smooth and the gears slotted easily. The steering was light. Visibility was excellent. Overall, it was a nice little vehicle apart from the severe under-powering.
The bodywork was pathetic. Everything rattled, and rust set in almost before it left the Bajaj factory. But at the time it was practically the only cheap vehicle available that could ferry 10+ people between the factory and the stations. Petrol was still around Rs 1.50 a liter and for the small distances covered it was cheaper to buy a petrol vehicle as diesels were very expensive.
These two vehicles were the forerunners of motorized small-scale transport in India, and they did add value. I must say that at the time, since the alternatives were “haath-gaadis” and public buses, nobody complained about the shortcomings of these two “Bajaj” (actually – Firodia) vehicles.