Triumph tr3a occasional seat manual#
Triumph tr3a occasional seat series#

While many of these items were factory fitments, local dealers supplied some as well.

Factory options and extras вЂ“ Triumph offered a wide range of optional parts and accessories for both the competition-minded enthusiast and those simply wishing to personalize their vehicle.

Remaining 9000 (1956вЂ“57): front discs rear drums Rear: live axle, half-elliptic springs, lever arm dampers.

Suspension вЂ“ Front: independent by unequal-length double wishbones, coil springs and telescopic dampers.

Production period вЂ“ October 1955 to Summer 1957.

As of Q1 2011 there were approximately 826 licensed and 115 SORN TR3/3as registered with the DVLA. Some 13,377 examples of the original 'pre-facelift' TR3 were produced, of which 1,286 were sold within the UK the rest were exported mainly to the USA. A third person can be carried behind the seats. The optional heater is poor and the shut-off valve is under the bonnet (US hood). There are holes in the floor, with rubber plugs, so that the originally supplied jack might be used from inside the car, as did the Jaguar XK120. It has a convertible hood (US top) that snaps on and off and removable side curtains, allowing very low doors with padding for the driver's arm to rest on. The TR3 is a true roadster, designed for sunny weather but with removable rain protection. The wheel lifting is more sudden than that of other cars, because it is caused by coming to the end of the suspension travel while there is still load on the tyre, so the load on the other (outside) rear wheel is a discontinuous function of cornering load, rather than just changing slope. This is particularly true with radial tyres the original TR2/3/3A suspension was built with older, crossply tyre designs in mind. As a result, on very hard cornering, the inside rear wheel can lift, causing sudden over-steer due to the increased load on the outside rear tyre. The chassis, which is shared by the TR2, TR3, TR3A and TR4 has limited wheel travel. Under most conditions the car is very responsive and forgiving, but it has some handling issues. All except the Morgan, which shares the same engine, are substantially less powerful as is the Sunbeam Alpine. The TR3's weight is significantly more than the Morgan +4 and the Porsche 356, but not much more than the MG-A and MG-B. The front disc or drum brakes and rear drums have no servo assistance. Wire wheels were usually painted, either body colour or argent (silver), but matt chrome and bright chrome were also available. The wheels are 15 inches in diameter and 4.5 inches wide (increased from 4 inches after the first few TR2s), with 48-spoke wire wheels optional. The rear is conventional leaf springs, with solid axle and lever arm dampers, except that the (box) frame rails are slung under the axle. Unlike MGs of the same period, the steering mechanism and linkage have considerable play and friction, which increase with wear. The suspension is by double A-arms, manganese bronze trunnion, coil springs and tube shocks at the front, optional anti-roll bar, and with worm and peg steering.

Triumph tr3a occasional seat series#

In 1956 the front brakes were changed from drums to discs, the TR3 thus becoming the first British series production car to be so fitted.

Triumph tr3a occasional seat manual#

The four-speed manual gearbox could be supplemented by an overdrive unit on the top three ratios, electrically operated and controlled by a switch on the dashboard. This was later increased to 100 bhp at 5000 rpm by the addition of a 'high port' cylinder head and enlarged manifold. The car is powered by a 1991В cc straight-four OHV engine initially producing 95В bhp (71В kW 96В PS), an increase of 5В hp over the TR2 thanks to the larger SU-H6 carburettors fitted. The Triumph was campaigned in races, hill climbs, and rallies across Europe and North America, with several outright, team, and class victories to its credit.ДЄlthough the car was usually supplied as an open two-seater, an occasional rear seat and bolt-on steel hard top were available as extras. With approximately 74,800 TR3s sold across all variants, the model was the companyвЂ™s third best seller, behind the TR7 (111,500 units) and TR6 (94,500 units) models. The rugged вЂsidescreenвЂ™ TR, so named for its employment of removable plexiglass side curtains, was a sales and motorsport success. The TR3 was succeeded by the Michelotti-styled, mechanically similar Triumph TR4. Updated variants, popularly but unofficially known as the 'TR3A' and 'TR3B', entered production in 19 respectively.

A traditional roadster, the TR3 is an evolution of the companyвЂ™s earlier TR2 model, with greater power and improved braking. The Triumph TR3 is a British sports car produced between 19 by the Standard-Triumph Motor Company of Coventry, England.