As I understand it you don't have to use the donor engine but you will have to supply date of manufacture of the engine you use in order that the vehicle presented is tested to the emissions test that relates to that engine. It's no longer relative to the age of the donor car. If you use the engine from the donor but the engine numbers don't match then you will have to provide the evidence to show the engine your using was in the donor you used the log book from, the donor is no longer considered as proof as it seems so many people used donor Sierra's with bike engines fitted!!! You can still source parts from multiple donors but you'll get a Q plate as before and without supporting evidence for the age of the engine it's assumed to be as new and will require current emissions standard.
That's how I interpreted the emissions section of the testers manual.
HTH
Last edited by Big Vern : 10th June 2009 at 01:34 PM.
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