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BUT - Equipment fitted to Diesel Multiple Units


Index of Initial Equipment Fitted to Railcars (From the BUT Spare Parts Catalogue: AEC, SCG. Ltd & Leyland sections).

Note these pages are copied as represented in the manual which differ from what what we know. In particular there is a mix-up in builders between the 117/118s, and 51495-51540 are shown as being built by Cravens. These could either be errors or they could be changes in the orders.

Vehicle Nos. BR Lot No. BUT DTO No. Builder Number of Cars Equipments per car Engines Gearboxes Final Drives
No. 1 Position No. 2 Position
Type List No. Type List No. Type & List No.
SC51008-SC51029 30413 1/34 Swindon 22 2 A52 R14 5715 R14 5713 - -
SC51030-SC51051 30414 1/34 Swindon 22 2 A52 R14 5715 R14 5713 - -
W51052-W51079 30421 1/25 Glos. C&W 28 2 A52 R14 6297 R14 6297 - -
W51080-W51107 30422 1/25 Glos. C&W 28 2 A52 R14 6297 R14 6297 - -
SC51108-SC51127 30444 1/27 Glos. C&W 20 2 A52 R14 5713 R14 5715 - -
W51128-W51140 30446 1/23 Derby C&W 13 2 Leyland 680/2 R14 5753 R14 5752 - -
W51141-W51153 30447 1/23 Derby C&W 13 2 Leyland 680/2 R14 5753 R14 5752 - -
M51174-M51203 30467 1/31 Met. Cam. 30 2 A52 R14 6321 or 6726 R14 6321 or 6726 - -
E51204-E51223 30467 1/31 Met. Cam. 20 2 A52 R14 6321 or 6726 R14 6321 or 6726 - -
SC51224-SC51253 30467 1/31 Met. Cam. 20 2 A52 R14 6321 or 6726 R14 6321 or 6726 - -
E51254-E51301 30469 1/33 Cravens 48 2 A52 R14 6321 or 6726 R14 6321 or 6726 - -
W51302-W51316 30543 1/41 Pressed Steel 15 2 Leyland 680/16 R14 6297 or 6730 R14 6297 or 6730 - -
W51317-W51331 30545 1/41 Pressed Steel 15 2 Leyland 680/16 R14 6297 or 6730 R14 6297 or 6730 - -
W51332-W51373 30546 1/41 BRCW 42 2 Leyland 680/16 R14 6297 or 6730 R14 6297 or 6730 - -
W51374-W51415 30548 1/41 BRCW 42 2 Leyland 680/16 R14 6297 or 6730 R14 6297 or 6730 - -
M51416-M51424 30498 1/49 Derby C&W 9 2 Leyland 680/1 R14 6321 or 6726 R14 6321 or 6726 - -
E51425-E51444 30500 1/39 Met. Cam. 20 2 Leyland 680/17 R14 6321 or 6726 R14 6321 or 6726 - -
SC51445-SC51470 30500 1/39 Met. Cam. 26 2 Leyland 680/17 R14 6321 or 6726 R14 6321 or 6726 - -
E51471-E51472 30503 1/40 Cravens 2 2 A52 R14 6321 or 6726 R14 6321 or 6726 - -
SC51473-SC51494 30503 1/40 Cravens 22 2 A52 R14 6321 or 6726 R14 6321 or 6726 - -
E51495-E51514 30501 1/39 Cravens 20 2 Leyland 680/17 R14 6321 or 6726 R14 6321 or 6726 - -
SC51515-SC51540 30501 1/39 Cravens 26 2 Leyland 680/17 R14 6321 or 6726 R14 6321 or 6726 - -
E51541-E51550 30508 1/44 Met. Cam. 10 2 R. R. SE4 7002 SE4 7002 - -
E51551-E51560 30509 1/44 Met. Cam. 10 2 R. R. SE4 7002 SE4 7002 - -
M51561-M51572 30461 1/38 Derby C&W 12 2 Leyland 680/1 R14 5753 R14 5752 - -
W51573-W51581 30515 1/56 Swindon 9 2 A52 R14 6321 or 6726 R14 6321 or 6726 - -
W51582-W51590 30516 1/56 Swindon 9 2 A52 R14 6321 or 6726 R14 6321 or 6726 - -
M51591-M51650 30521 - Derby C&W 60 2 R. R. Rolls-Royce torque converters RF28 7000 (1st 30) 7008 (last 30)
M51651-M51680 30530 1/50 Derby C&W 30 2 Leyland 902/11 SE4 7027 SE4 7027 RF28 6489

AEC Engine Variations

The AEC Spare Parts catalogue divides engines into two sections: A51 or A52. Second column below is the DTO nos. and should be referenced to the tables above.

 A51

A220L 1/B, 1/2, 1/5 Engine complete with flywheel (belt tensioner & dynamo)
A220S 1/3, 1/20 Engine complete with flywheel (right-angle drive)
A220W 1/6 Engine as A220S with two oil-pressure switches
A220Y 1/7, 1/11, 1/11B Engine as A220L less dynamo
These all had 18" flywheels and were supplied without fuel filter, fuel pipes and electrical installations. We also believe that all A51s originally had winch gear fitted to assist with engine swaps. Further details would be appreciated.

 A52

A220AC 1/12, 1/14 (24-off), 1/16, 1/17,1/21, 1/22, 1/23 (6-off), 1/25, 1/27, 1/31, 1/33, 1/40, 1/57 Engine complete with flywheel, twin fuel filter, fuel pipes & fittings and electrical installations (right-angle drive)
A220AJ 1/26 Engine as A220AC less air compressor and one oil-pressure switch
A220AK 1/51, 1/56 Engine as A220AC with 3" shorter oil filler tube
A220AL 1/34 Engine as A220AK with Simms starter motor
A220AZ 1/32 Engine as A220AJ less fan shaft spacer and with different electrical installations
A220BB 1/55 Engine as A220AC with Simms starter motor
These all had 20" flywheels and were supplied with fuel filter, fuel pipes and electrical installations.

Gearbox Notes

Type R14 Gearbox List No. 6297 when modified was List No. 6730. Boxes were interchangable.

Type R14 Gearbox List No. 6321 when modified was List No. 6726. Boxes were interchangable.

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