International Alliance of Morris OwnersIAMO
....................Home | About Us | Contact Us
Isis 1955-1957
Bhp graphs

Dimensions

 

Series II vehicles had bonnet with fluted sides and a mascot added on front of bonnet.

Rear wings were finned, and other changes included dished safety type steering wheel, lids on glove boxes, side position for gear change lever.

Screen washer, wheel rimbellishers and courtesy light made standard equipment.

Vehicles exported to North America fitted with sealed-beam headlamps and flashing indicators.

De luxe version of saloon fitted leather upholstery and heater as standard. Optional extras on Isis included Borg-Warner overdrive from 1955. New type radiator grille and the addition of centre arm rests to front seats from July 1956.

Duotonecolour finish on Series II cars.

 

Back to top

Isis

Engine

Type
C26M

Number of cylinders

6
Bore mm
79.4
Stroke mm
88.9
Capacity cc
2,639
Valves
overhead
RAC hp rating
CR
7.25 or 8.3
BHP (graphs)
86
at rpm

4,250

Valve timing
inlet opens
ATDC
inlet closes
ABDC
exhaust opens
BBDC
exhaust closes
ATDC
Cooling
Pressurised cooling system with fan, pump and thermostat
Electrics
12-volt positive earth
Gearbox
4-speed synchromesh except first. Steering column lever but floor on Series II
Petrol tank capacity
saloon 12 gallons
traveller 10 gallons

Petrol pump

SU electric
Carburation
SU semi-downdraught

Back to top

Dimensions
   
Wheelbase
8' 11"
Track front
4' 5"
rear
4' 5"
Length
14' 8"
Width
5' 5"
Weight
27 cwt
Front suspension
Independent torsion bar
Rear suspension
half elliptic
Axle ratio
4.1:1 (10/41)
Tyre size
6.00x15
Brakes
Lockheed hydraulic
Drum size

10" diameter, two leading shoes at front
11" from chassis 4566

Steering
Bishop Cam

Back to top

Performance
0 to 50 mph secs
12.8
0 to 60 mph secs
17.8
standing quarter secs
21.1
Fuel consumption mpg
 23
Maximum speed
 88

 

Body styles and colours
 
Doors
1955
1957 
Saloon
4
Black
Clarendon grey
Empire green
Smoke blue

 

Duotone
Black top with Swiss grey
Turquoise top with Swiss grey
Dark green top with lIsland green Sage green top Twilight grey
Birch grey top with red

Black
Turquoise
Dark Green
Sage Green
Birch grey
Cream
Clarendon grey

Traveller
4

Back to top

Chassis numbers
Saloon Start - July 1955
501
Finish - October 1956
7192
Traveller Start - July 1955
501
  Finish - October 1956
7192
Series II saloon Start - October 1956
7201
  Finish - April 1958
13614
Series II traveller Start - October 1956
7201
  Finish - October 1957
11963

Back to top

Books and articles (available on the web)

 

Other sources
The Autocar
Issue
page
Saloon and traveller Model description
15/7/55
89-92
Saloon Road Test
27/4/56
440-3
News Exchange
Saloon Model description
9/55
4, 5
Traveller Model description
9/55
6
Saloon and traveller Model description
11/56
Supplement
Saloon Model colour range
5/57
16, 17
Motor Industry
Saloon and traveller Model description
8/55
107, 108

Saloon and traveller Wiring and Test data

Automobile Electricity Data Sheet D656

If anyone has copies of there articles please contact the webmaster so that they can be included on this site for reference.

Back to top

Please send a picture of your car for inclusion