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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).

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.
M50395-M50414 30286 1/17 Park Royal 20 2 A52 R14 5753 R14 5752 - -
E50415-E50419 30288 1/15 Wickam 5 2 Leyland 680/1 R14 5713 R14 5715 - -
M50420-M50423 30290 1/13 BRCW 4 2 Leyland 680/7 R14 5715 R14 5713 - -
M50424-M50427 30291 1/13 BRCW 4 2 Leyland 680/7 R14 5715 R14 5713 - -
M50428-M50479 30293 1/13 BRCW 52 2 Leyland 680/7 R14 5715 R14 5713 - -
M50480-M50531 30294 1/13 BRCW 52 2 Leyland 680/7 R14 5715 R14 5713 - -
M50532-M50541 30296 1/13 BRCW 10 2 Leyland 680/7 R14 5715 R14 5713 - -
E50542-E50583 30298 1/13 BRCW 42 2 Leyland 680/7 R14 5715 R14 5713 - -
E50584-E50593 30301 1/13 BRCW 10 2 Leyland 680/7 R14 5715 R14 5713 - -
E50594-E50598 30304 1/13 BRCW 5 2 Leyland 680/7 R14 5715 R14 5713 - -
E50599-E50624 30406 1/30 Derby C&W 26 2 Leyland 680/12 R14 6297 or 6730 R14 6297 or 6730 - -
M50625-M50629 30407 1/30 Derby C&W 5 2 Leyland 680/12 R14 6297 or 6730 R14 6297 or 6730 - -
E50630-E50646 30408 1/30 Derby C&W 17 2 Leyland 680/12 R14 6297 or 6730 R14 6297 or 6730 - -
W50647-W50695 30334 1/22 Swindon 49 2 A52 R14 5715 R14 5713 - -
W50696-W50744 30335 1/22 Swindon 49 2 A52 R14 5715 R14 5713 - -
E50745-E50751 30271 1/12 Met. Cam. 7 2 A52 R14 5715 R14 5713 - -
M50752-M50784 30352 1/21 Cravens 33 2 A52 R14 5713 R14 5715 - -
M50785-M50817 30353 1/21 Cravens 33 2 A52 R14 5713 R14 5715 - -
W50818-W50858 30363 1/23 Derby C&W 41 2 Leyland 680/2 R14 5753 R14 5752 - -
W50859-W50861 30363 1/23 Derby C&W 3 2 A52 R14 5753 R14 5752 - -
W50862-W50870 30363 1/23 Derby C&W 9 2 Leyland 680/2 R14 5753 R14 5752 - -
W50871-W50911 30364 1/23 Derby C&W 41 2 Leyland 680/2 R14 5753 R14 5752 - -
W50912-W50914 30364 1/23 Derby C&W 3 2 A52 R14 5753 R14 5752 - -
W50915-W50923 30364 1/23 Derby C&W 9 2 Leyland 680/2 R14 5753 R14 5752 - -
M50924-M50935 30460 1/38 Derby C&W 12 2 Leyland 680/1 R14 5753 R14 5752 - -
SC50936 30413 1/34 Swindon 1 2 A52 R14 5715 R14 5713 - -
M50938-M50967 30465 1/38 Derby C&W 30 2 Leyland 680/1 R14 5753 R14 5752 - -
M50968 30465 1/38 Derby C&W 1 2 Leyland 680/1 R14 5753 R14 5752 - -
M50969-M50987 30465 1/38 Derby C&W 19 2 Leyland 680/1 R14 5753 R14 5752 - -

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.

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