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From Wikipedia, the free encyclopedia

Jaguar XK140
Jaguar XK140 - Flickr - Alexandre Prévot (cropped).jpg
XK140 open two-seater or roadster 1954
Overview
ManufacturerJaguar Cars
Production1954–1957
Body and chassis
ClassSports car
Body style2-seat roadster
2-seat convertible
2-seat coupé
LayoutFR layout
Dimensions
Length176 in (4,470 mm)[1]
Width64.5 in (1,638 mm)
Curb weight3,136–3,248 lb (1,422–1,473 kg)
Chronology
PredecessorJaguar XK120
SuccessorJaguar XK150

The Jaguar XK140 is a sports car manufactured by Jaguar between 1954 and 1957 as the successor to the XK120. Upgrades included more interior space, improved brakes, rack and pinion steering, increased suspension travel, and telescopic shock absorbers instead of the older lever arm design.

History

The XK140 was introduced in late 1954 and sold as a 1955 model. Exterior changes that distinguished it from the XK120 included more substantial front and rear bumpers with overriders, and flashing turn signals (operated by a switch on the dash) above the front bumper.

Boot emblem
Boot emblem

The grille remained the same size but became a one-piece cast unit with fewer, and broader, vertical bars. The Jaguar badge was incorporated into the grille surround. A chrome trim strip ran along the centre of the bonnet (hood) and boot (trunk) lid. An emblem on the boot lid contained the words "Winner Le Mans 1951–3".

Roadster rear
Roadster rear
Open two-seater or roadster interior 1956 showing waterproof leather fascia
Open two-seater or roadster interior 1956 showing waterproof leather fascia
Drophead coupé interior
Drophead coupé interior
Drophead coupé 1955
Drophead coupé 1955
Fixed head coupé
Fixed head coupé

The interior was made more comfortable for taller drivers by moving the engine, firewall and dash forward to give 3 inches (76 mm) more legroom. Two 6-volt batteries, one in each front wing were fitted to the Fixed Head Coupe, but Drop Heads and the Open Two Seater had a single 12-volt battery installed in the front wing on the passenger side.

The XK140 was powered by the 3.4 litre Jaguar XK double overhead camshaft inline-6 engine, with the Special Equipment modifications from the XK120, which raised the specified power by 10 bhp to 190 bhp (142 kW) gross at 5500 rpm, as standard. The optional C-Type cylinder head carried over from the XK120 catalogue, and produced 210 bhp (157 kW) gross at 5750 rpmt.

When fitted with the C-type head, 2-inch sand-cast H8 carburettors, heavier torsion bars and twin exhaust pipes, the car was designated XK140 SE in the UK and XK140 MC in North America.

In 1956 the XK140 became the first Jaguar sports car to be offered with automatic transmission. As with the XK120, wire wheels and dual exhausts were options, with most XK140s imported into the United States having the optional wheels. Cars with the standard disc wheels had spats (fender skirts) over the rear wheel opening. Factory spec 6.00 × 16 inch crossply tyres or optional 185VR16 Pirelli Cinturato CA67 radials could be fitted on either 16 × 5K½ solid wheels or 16 × 5K (special equipment) wire wheels.[2]

Body styles

The Roadster (designated OTS - Open Two Seater - in America) had a light canvas top that folded out of sight behind the seats. The interior was trimmed in leather and leatherette, including the dash. Like the XK120 Roadster, the XK140 version had removable canvas and plastic side curtains on light alloy barchetta-type doors, and a tonneau cover. The door tops and scuttle panel were cut back by two inches (50mm) compared to the XK120, to allow a more modern positioning[clarification needed] of the steering wheel. The angle of the front face of the doors (A-Post) was changed from 45 degrees to 90 degrees, to make access easier. The windscreen remained removable.

The Drophead Coupé (DHC) had a bulkier lined canvas top that lowered onto the body behind the seats, a fixed windscreen integral with the body, wind-up side windows, and a small rear seat. It also had a walnut-veneered dashboard and door cappings.

The Fixed Head Coupé (FHC) shared the DHC's interior trim and rear seat. The prototype Fixed Head Coupe retained the XK120 Fixed Head roof-profile, with the front wings and doors the same as the Drophead. Production cars had the roof lengthened, windscreen placed further forward, shorter front wings, and longer doors, all resulting in easier entry and more interior space and legroom.

Engine specifications

XK 140 ENGINES [1][3]
Model Years Displacement Configuration Bore/Stroke Carburettor Power
XK 140 3.4 1954-1957
3442 cc
DOHC Straight-6
83 mm x 106 mm
Double SU H6 190 bhp (142 kW; 193 PS) @ 5500 rpm
XK 140 3.4 SE (C-Type Head)("MC" in USA) 1954-1957
3442 cc
DOHC Straight-6
83 mm x 106 mm
Double SU H6 210 bhp (157 kW; 213 PS) @ 5750 rpm

Performance

A stock XK-140 SE could achieve a top speed of 120–125 mph (193–201 km/h). Road & Track's XK-140 MC test in June 1955 recorded a best two-way average of 120.3 mph (193.6 km/h). Best one-way run was 121.1 mph (194.9 km/h). Sports Cars Illustrated's test of the same model in Aug 1957 had a fastest two-way average of 121 mph (195 km/h). Their best one-way run was 124 mph (200 km/h). Karl Ludvigsen's test published in Sports Car World (July 1957) had the same results as the SCI test.

Acceleration times from 0–60 mph (97 km/h) were 8.4 seconds, 9.1 seconds and 9.1 seconds respectively. Only the R&T test tried 0–100 mph (161 km/h) which took 26.5 seconds. Standing 1/4 mile (~400 m) times were 16.6 seconds (82 mph (132 km/h) approx) and 16.9 seconds (86 mph (138 km/h)).

Production

Chassis numbers as supplied by Jaguar Heritage Trust[4]

Cars Chassis numbers used
RHD LHD Total RHD LHD Total
Open two-seater 73 3276 3349 74 3282 3356
Fixed-head 839 1959 2798 843 1966 2809
Drop-head 480 2310 2790 480 2311 2791
Total 1392 7545 8937 1397 7559 8956

References

  1. ^ a b Unique Cars and Parts: Jaguar XK140 Specifications. www.uniquecarsandparts.com.au Retrieved 2013-02-08.
  2. ^ Paul Skilleter, Jaguar Sports Cars, pp.310 ISBN 0-85429-166-0.
  3. ^ The Jaguar XK140, at The Jaguar Database www.car-nection.com - Retrieved on 4 November 2008
  4. ^ Jaguar Heritage Trust accessed 21 March 2020

External links

  • XKData.com volunteer maintained online registry with thousands of cars
This page was last edited on 30 March 2020, at 06:02
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