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Technical Data		 Technical Data
for the MG Y Series - YT only

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 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
Bumpers fitted, less wings and lamps.		 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.

  

Reprints of the full Maintenance Manual And Instruction Book for the MG YA can be obtained from the MG Octagon Car Club. 
See the Links page for contact details.

 

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Technical Data