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DISTRIBUTORS Original To MGA - IG-125

This is the short list of origianl type Lucas duistributors (and specifications) you may find in the MGA.

LUCAS Distributors for MGA
Service                    ECM          Advance1       Advance2       Advance3  vacuum
number      Model  rot'n  curve  RPM 1     1   RPM 2    1   RPM 3    1     code  Connection  years   make  models

40448       DM2.    CCW                                                                            1957     MG   MGA

40510B/D/F  DM2P4   CCW    546           12.25                                  7-14-10            1956-59  MG   1956-59 MGA 1500
                                                                                                                 1959-62 MGA 1600

40718A      23D4    CCW    710   3500    13      1800    10      700     7.5      250   No vacuum  1959-61  MG   MGA Twincam
                                                                                                                 replaces 40510

40897A      25D4    CCW          2500    17      1100    9       475     2        220                       MG   early MGB
For a list of all known Lucas distruibutors see next page.

There will be some confusion when refering to the direction of rotation of the distributor. Lucas technical manuals go to some length to note that distributor rotational direction is as viewed from the driven end. That being the case all MGA (including Twin Cam) and MGB disributors have clockwise rotation. However, most of us mechanical types who need to service the car regularly will most often be looking at the top end of the distributor, in which case it turns counter-clockwise.

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