From your profile you are located in the UK; the place the Fuel Injection Pump came from.
If you cannot get iformation there we in the USA are not likely to get it.

Fuel Injection Pumps were not made to be fooled with by the common Mechanics so the information on them is kept buy the companies who make them.
Because of the above they expect you to bring the Fuel Injection Pump to an authorized; in your case Lucas shop.

The other alternative is to find another used Fuel Injection Pump from a car that had an accident.

From the general appearance of it; although I cannot see the front of the IP it looks like a Lucas copy of the Bosch VE type pump used on my Volvo and VW Diesels except that it has electronic do-dads on it.
By copy I donot mean the parts interchange but that it operats on the same pricables.

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84 300D, 82 Volvo 244Gl Diesel