I am working on a 1500 and considering engine options. What is the situation with MOT/emissions testing in the UK if I change engines. If the engine originally had a CAT do I need to fit one to the Midget?
There will be others better able to advise you on here but what options are you considering, K-Series, Ford Zetec etc. There are many Spridgets around with uprated engines so lots of info about the conversions is available. I'm not qualified to answer questions about the conversions personally as I have no experience but if you can give us an idea of what you're planning someone will be able to help I'm sure/
Make sure you have a bill of sale for the engine, you will need that when you register change of engine number, otherwise not stations test to the basic emissions limits. Never had any problems. There is really helpful and friendly group on Facebook you need to join, search for k series / zetec midget
Thank you for your reply. I'm sorry to be obtuse but I'm still not clear on the situation. Are you saying that if I have a bill of sale for the replacement engine the car will then be tested to the emission standards of the donor car? Will it therefore require a cat? If I have no bill of sale you state that it will be tested to "basic emission limits". I'm not sure what this implies. Do you mean modern emission limits or those in force when the MG car was made?
you will need the receipt for DVLA to prove the engine is not stolen when you request the change of engine number and capacity, its a newish directive of theirs, nothing to do with emissions.
DVLA may also ask for an engineers report, easy to get from your local friendly garage or specialist, to prove that the installation change of the engine has been performed in a safe way. I am not sure what % get asked, its not the majority, but probably helps when you submit the paperwork.
I have heard that the system is changing and there will now be a "points based system"? It sounds as though this may mean changing the engine could result in a "Q" reg and emission tests based on the engine donor vehicle. I'm not sure how this will affect tax rates/exemptions or MOT requirements.