Engine-sv

Series MM Morris
918cc Sidevalve Engine
The engine was the only part of the Series MM Morris Minor that was not new for 1948. This engine was reused from the pre-war Morris Eight and consequently the new car was endowed with extreme reliability and unfortunately pre-war performance.
Performance
Model 0-30 0-50 30-50 max speed in gears (mph) mpg



top 1 2 3 top
MM 2 door 8.7s 24.2s 24.1s 19 32 50 62.3 40.0
MM 4 door 10.0s 37.1s 31.6s 24 37 50 60.1 39.8

Technical Specifications
Engine Type USHM2
Bore & Stroke 57 x 90 mm
capacity 918.6 cc
compression ratio 6.5/6.7:1
power 27.5bhp @ 4400
Torque 39 lbft @ 2400
valves side
Carburetter SU type H1

GearBox and Final Drives
Gear ratio
1 17.99:1
2 10.47:1
3 7.015:1
top 4.55:1
mph/1000 rmp 14.9

Dimensions and Weights
Model length
(m)		 width
(m)		 height
(m)		 wheel-base
(m)		 weight
(kg)		 distributution
MM 2 door 3.76 1.55 1.45 2.18 789 56/44
MM tourer 3.76 1.55 1.45 2.18 738 57/43
MM 4 door 3.76 1.55 1.45 2.18 815 56/44

Significant Series MM dates
First MM (2-door) 20.9.1948
First Tourer 14.10.1948
First 4-door 5.9.1950
100,000th 7.6.1951
Last 4-door 12.1.1953
Last Tourer 18.2.1953
Last 2-door 19.2.1953
Total Production 176,002

Tool Kit

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