The basic speification of the engine are as follows. Land Rover Engine changes 861872 Some minor parts on the carburettor changed. The accelerator pump changed from having the long pump arm, to having a short pump arm. The throttle lever changed as well as the accelerator pump actuating rod. The main jet changed from being 102.5 to being 107.5.
Original carburettors are easy to distinguish.
They are date stamped on the carburettor main body. This means the month, A, being January and so on. The details of the starter motor are stamped on the main starter body. The main difference between the two starters is that an adaptor plate was dropped from the back. A rubber sealing strip has been added to the rear of the sump.