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This table can be used as a guide to selecting the appropriate curve for your particular application. Select either the standard engine specification, or if you have a distributor with a curve that works well already, you can read the Lucas service number from the side of the distributor body to match. Don't worry if you do not see your particular application on this list, the 123/Mini is suitable for ALL BMC A series engines! If you have any doubt about which curve is suitable, please ask.

Service number

123/Mini curve

Application

40767

C

848 Mini UK Vehicles Regular Fuel

40768

F

850 Mini

40774

3

997 Mini Cooper HC

40819

C

Mini Cooper S Mk III, 1275 cc

40873

F

997 Mini Cooper LC

40899

C

Minor, Van and Pickup, 1098 mini Low Compression

40931

4

Mini early including Wolseley Hornet and Riley Elf

40941

F

850 miniLate Model High Compression

40955

F*

998 Mini Cooper High Compression

40958

F*

998 Mini Cooper LC and special order for low grade fuel

40979

B

Works special for Rally Mini's

41007

C

848 Mini UK Vehicles Regular Fuel

41026

E

848 Mini UK Vehicles Premium Fuel

41030

0

Mini 1000 Saloon, clubman and Estate, 998 cc,

41031

F*

998 Mini Cooper LC

41032

F*

998 Mini Cooper HC, 1971-75 Morris Marina 1.8 TC

41033

E

Mini Cooper S Mk III, 1275 cc

41045

A

998 mini Early Model High Compression

41057

B

998 mini Late Model High Compression

41134

A

850 and 998 Mini Automatic including Riley Elf and Wolseley Hornet, 1100 automatic

41212

B

Mini 1000 and Mini Clubman, Saloon and variants, 998 cc,

41214

2

1275 non S Mini, Austin 1300 HC and automatic, Riley Kestrel 1000, Wolseley 1300 and Vanden Plas Princess 1300, MG 1300 Automatic

41242

A

850 and 998 Mini automatic, Vandel Plas Princess 1300 and Wolseley 1300 twin carb

41246

B

Mini 1000 and Mini Clubman, Saloon and variants, 998 cc, 1972-74: Mini Clubman 1100, 1098 cc, Allegro 1100

41249

F

Later Minis and Moke

41250

C

Mini Moke, van and pickup, later models

41251

A

850 and 998 Mini Automatic including Wolseley Hornet and Riley Elf

41254

5

998 Mini 72 to 74 including Wolseley Hornet and Riley Elf

41255

D

998 Mini Cooper, late

41257

2

1275 non S Mini, Austin 1300 HC and automatic late

41404

0

998 Mini ( Canada ) 1975-80, 1974 onward Leyland (SA) 1.3 van, 1974-77 Morris Marina 1.3, 1975-78 Morris 1.3 HC

41410

4

1970-73 Austin 850 LC, 998 Mini automatic, 850 van and pickup, 1976-78Morris Marina 1.8 GT and HL

41411

B

Mini 850 Saloon and variants, 848 cc

41412

5

Austin 1000 Mini automatic and Clubman, 1975 Authi Mini 1000

41417

A

1969 Austin 850 Mini automatic, 1976-80 Austin 850 Mini, 1970-80 Austin 1000 Mini automatic, 1976-80 Austin 850 van and pickup, 1970-77 Austin 1100 Automatic,

41418

8

Mini 1000 and Mini Clubman, Saloon and variants, 998 cc, manual and auto, Allegro 1.1

41419

0

1970-80 1275 non S Mini, 1973-79 Austin Allegro 1300 HC,1969-74 Austin 1300 HC Automatic, 1970-74 Austin 1300 France, 1969-73 Austin 1300 Princess including automatic

41532

C

998 Mini ( Canada )

41569

F*

Mini 850 Saloon and variants, 848 cc

41570

5

850 Mini, van and pickup

41858

B

Minis with engine number 12HC18AA, 12HC19(AA), 12HD20(AA)12HE41, 12HE42, 1984 onward Austin Metro 1.3 van, 1981 onwardMorris 440, 575 Van and Pickup 1.3

41882

4

Metro 998, Minis with engine number 99Hxx, 1988- onwards.

41938

D

Minis with engine number 12HC09AA, 12HC10AA, 12HD14(AA) 12HD15(AA), 1983-84 Austin Metro 1.3 HLE

42535

2

Minis with engine number 12A2BG01,12A2BG03, 12A2BG05.

42626

4

Minis with engine number 12HD09, 12HD10, 12HD11, 12HD12, 12HD13, 12HD21, 12HD22, 1984-86 Austin 1.3 L and HLE

42627

4

Minis with engine number 12HD17,12HD24, 1986 onward 1.3 Vanden Plas, 1984 onward MG Metro

42628

7

Minis with engine number 12HD26(AA)1984 onward MG Metro turbo

42630

A

Minis with engine number 12HC17AA,12HD18

42635

4

Minis with engine number 12HD25

42681

6

Minis with engine number 12HE48, 12HE25

* These STOCK engines require more maximum advance than the 123/Mini can provide, but curve F should allow the engine to operate well. NOTE, the original curves were designed for leaded fuel which is no longer available so the ignition requirements are different now.

 

 

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Last updated: December 23, 2006.