1978 TRIUMPH BONNEVILLE T140V. скачать в хорошем качестве

1978 TRIUMPH BONNEVILLE T140V.

1978 TRIUMPH BONNEVILLE T140V. The Triumph Bonneville T140 a 750 cc (46 cu in) capacity engine that was designed and built by Triumph Engineering at Meriden near Coventry. The T140 was a continuation of the second generation in the Bonneville series developed from the earlier 650 cc (40 cu in) T120 Bonneville and was produced by Triumph in a number of versions, including limited editions, from 1973 until 1983 when the company was declared bankrupt. Triumph was then purchased by John Bloor. Bloor licensed production of the T140 Bonneville to Les Harris between 1985 and 1988 at Newton Abbot in Devon, these machines became known as 'Harris' or 'Devon' Bonnevilles. The 650 cc capacity production T120 Bonneville was replaced in the early 1970s by the T140 Bonneville, the same basic bike, but with a 750 cc engine. Refined from the later 'oil in frame' version of the T120, the first few T140s, designated T140V, featured a larger-capacity engine of 724 cc, a five-speed gearbox and indicators, but still retaining drum brakes and kick-start. Shortly after, the engine was further bored out to 744 cc and front disc brakes were fitted (using single discs until 1982). While originally intended for 'export only', the 750 Bonneville twin caused so much interest among visitors to the 1973 motorcycle shows, that Triumph decided to put the bike on the home market at the price of £679 In 1975, along with engine modifications, the gearchange lever was moved from right to left to comply with new regulations mandated for the American market and a rear disc brake fitted. Several T140 models followed, featuring various modifications and refinements including electric starting from 1980 until production ceased with the closure of the Meriden works in 1983. The Bonneville name came from the achievements of Texas racer Johnny Allen on the Bonneville Salt Flats in Utah in the 1950s.The model designation of T140 continued the numbering system started by Edward Turner in 1937 with the Triumph Tiger 70, a number that was intended to advertise the machine's top speed in miles per hour The T140 uses a 360-degree, air-cooled parallel twin layout. Gear-driven camshafts operate a single inlet and exhaust valve in each cylinder via pushrods. Twin Amal carburettors supply the cylinders with fuel/air mixture through short intake manifolds. The crankshaft drives the clutch through a triplex chain operating in an oil bath. Starting is by kick start with later versions having an electric start. The engine oil system is of the dry sump type, a combined pressure and scavenge oil pump is driven by the inlet camshaft gear, later versions of the T140 employed additional integral non-return valves to prevent oil draining into the sump. The frame of the T140 serves as the engine oil reservoir. Using a five-speed sequential gearbox, the gear shafts are removable from the right side of the engine without the need to split the crankcases. The clutch is of the wet, multiple-disc coil spring type and is cable operated. The gearbox is splash lubricated by its own oil contents. Early models featured a right mounted gear change lever with all later models (from August 1975) featuring a left mounted gear lever. A shock-absorbing or "cush drive" system for the chain final drive consisting of rubber blocks is unusually mounted in the clutch centre. A T140 frame is manufactured from mild steel tube and uses a 'duplex' layout. Twin rear adjustable shock absorbers provide suspension through a swinging arm. Sprung and oil-damped front telescopic forks are used. The 19 inch diameter front wheel and 18 inch rear wheel were spoked with optional cast alloy wheels available from 1979 onwards. The under-seat area is occupied by the battery and ignition coils. From 1976, the T140 had hydraulic disc brakes for both the front and rear wheels. Prior to that date, early versions were equipped with a conical hub rear drum brake. A single leading shoe rear drum brake was specified for the last Bonnevilles proposed by the Meriden factory in 1984 but the factory closed before production. From 1982, twin front brake discs were available as an option