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Technical Data |
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We often get asked questions on technical matters relating to basic specification data on the MG Y Type, so it seems sensible to make available a printed sheet with all the usual data on it.
Source: Maintenance Manual and Instruction Book for the MG One and a Quarter Litre (Series 'Y') - available as a reprint in full from the MG Octagon Car Club - see Links page. While every effort has been made to carefully copy and reproduce the data shown accurately, your attention is drawn to our DISCLAIMER.
NB This data is correct for the MG YA and YT - not the MG YB! Download this sheet as a PDF file here.
NB. The conversion from Imperial cwt to kg for the weight is incorrectly stated in the original Workshop Manual as 933.5kg. It is corrected in a later Supplement to the Owners Manual as 958 kg.
NB This data is correct for the MG YT - not the MG YA or YB! Download this sheet as a PDF file here.
MG YT only
GENERAL DIMENSIONS: |
|
Overall length |
13 ft. 8 in. (4.165 m.). |
Overall width |
4 ft. 11 in. (1.524 m.). |
Overall height |
4 ft. 10½ in. (1.523 m.). |
WEIGHTS: |
|
Complete car |
18 cwt. 3 qr. (933.5 kg.). |
Front |
9 cwt. 2 qr. (483 kg.). |
Rear |
9 cwt. 1 qr. (463 kg.). |
Chassis |
11 cwt. (559 kg.). |
PERFORMANCE: |
|
Brake horse-power |
54.4 b.h.p. at 5,200 r.p.m. |
Maximum torque |
765 lb. in. (8.9 kg.). at 2,600 r.p.m. |
Litres per ton-mile |
2732. |
REAR SPRINGS: |
|
Type |
Half elliptical, interleaved with rubber. |
No OF LEAVES |
8 |
|
LEAF SIZE |
¼" x 1½" |
IN |
LOAD RATE |
248 |
LB/IN |
FREE CAMBER |
294 |
IN |
FLAT LOAD |
729 |
LB |
MAXIMUM DEFLECTION |
6¼" |
6¼" |
CARBURETTER NEEDLES: |
|
Standard |
ES. |
Richer |
EM. |
Weaker |
AP. |
CAMSHAFT: |
|
Cam lift |
5.785 mm. = 8 mm. at valve. |
VALVE SPRING PRESSURE: |
|
|
Valve lift |
8 mm. |
|
INSTRUMENTS: |
|
Revolution counter and clock |
British Jaeger. Type K.30. |
Reduction gear on dynamo |
100/225 for rev. counter |
Speedometer |
British Jaeger. Type S.516. |
Starter switch |
Lucas Model ST.19. Type L. |
Distributor |
Lucas Model DKY.4A. Type DA.37. |
Dynamo |
Lucas Model C.45Y–V.3. Type GC.24. |
Control Unit |
Lucas Model RF.95/2. Type L. |
Windscreen wiper |
Lucas Model CW.1DA.34. |
Headlamps |
Lucas Model S.700. |
Stop and tail-lamp |
Lucas Model ST.51/1 |
Reverse and tail-lamp |
Lucas Model RT.51/1. |
Stop and tail-lamp (U.S.A. cars only) |
Lucas Model 482D |
Reverse and tail-lamp (U.S.A. cars only) |
Lucas Model RT.50C/1. |
Sidelamps use twin filament bulbs on U.S.A. cars only |
Lucas Model 189 |
On U.S.A. cars twin Mellotone horns are fitted, and the extra fusebox, Lucas Model SF.5/2, uses a 50 amp. fuse.
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