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1962 TRIUMPH TR-3B ROADSTER

The “Triumph TR3B” is an unofficial name given to the final version of the TR3, which was produced by the Triumph Motor Company (Standard Motor Company) in 1962. It was offered concurrent with the TR4, which started production in 1961. In fact, the “TR3B” was a special short production run produced in response to dealer concerns that the buying public might not welcome the TR4.

It had the body of the “TR3A” (Except that the body panels had raised stampings under the hood & trunk hinges and under the door handles. In addition, the wind screen was attached with bolts rather than the Dzus connectors used on “A” models.), but the 2,138 cc. engine and all synchromesh transmission of the TR4. The engine is a straight 4, push rod, 3 bearing, with wet liners. It had 9:1 compression and was very rigid. It was fitted with two H6 SU carburettors. It had 105 hp (78 kW) at 4,650 rpm and 172 N·m (127 ft·lbf) of torque at 3,350 rpm. It got around 20 miles per US gallon (12 L/100 km; 24 mpg-imp) to 30 miles per US gallon (7.8 L/100 km; 36 mpg-imp. The top speed was limited to about 110 mph (177 km/h). by the gear ratio, unless it had overdrive. Electrically triggered overdrive (Laycock-de-Normanville Type A) was available as an option and operated on 2nd, 3rd, and 4th gears. Appearance was identical to the “TR3A”, and as such very similar to the TR3, except for a wider grill and door handles.

The suspension was 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. Unlike MGs of the same period, the steering mechanism and linkage had considerable play and friction, which increased with wear.

The rear was conventional leaf springs, with solid axle and lever shocks, except that the (box) frame rails were slung under the axle (underslung*). The wheels were 15 inch diameter x 4.5″ width (increased from 4″ after the first few TR2s), with 48 spoke wire wheels optional. Wire wheels were usually painted, either body color or argent (silver), but matte chrome and bright chrome were also available. It had front disk brakes (the TR was the first production car to feature these as standard equipment) and rear drums with no power assist.

It weighed 2,137 lb (969 kg) which was significantly more than the Morgan +4 and the “Bath Tub” (pre-911) Porsches, but not much more than the MGA and MGB. All except the Morgan, which shared the same engine, were substantially less powerful.

Though, under most conditions it was very responsive and forgiving, it had a some handling vices. The chassis, which it shared with the TR2, TR3, TR3A and TR4 had limited wheel travel, and the car was somewhat tall and narrow for a high performance sports car. As a result, on very hard cornering, the inside rear wheel would lift, causing sudden over-steer due to the increased load on the outside rear tire. This was particularly true with increasingly common radial tires. The original TR2/3/3A suspension was built with older, bias ply tire designs in mind.

The “TR3B” is a true roadster, designed for sunny weather with removable rain protection. It has a convertible top (hood) that snaps on and off and removable side curtains, allowing very low doors with padding to rest one’s arm on. 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 XK 120. The optional heater was poor and the shut-off valve was under the hood (bonnet). A third person could get behind the seats, if absolutely necessary.

Sold New From C.J. Motors of Berkley, CA on 7/17/62

Recently Rebuilt Within the Last 3,000 Miles:

Engine

Transmission

Clutch

Brakes

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