XJS V12

[cpas]

Hi There.

A friend of mine is considering the 'aquisition' of a V12 XJS Coupe (at mate's rates) but is has a slight misfire. It doesn't appear to be smoking and is emiting some unburnt fuel out of the right-hand exhaust, so I assume it's an ignition problem. I know it's a daft question, but is it likely to be dodgy plugs, leads of a ditstributor cap, or could it be something more sinister?
Also, is there any logical way of testing to see if all the injectors are working?

Thanks for you help.

[mikey77]

Take the dizzy cap off and have a look at the state of the rotor arm.

[varsas]

Bit of a long shot, but it's not F228 PPF is it? I sold mine with exactly the same fault, it could be a spark plug. They are a bit of a pain to change on those cars (not just because of access, mine were well and truly stuck, I broke 2 of those draper adjustable spark plug socket things) in the end we just could not get one of them out.

[richw_82]

Have a look at the top of the distibutor cap. If there's two leads going into the centre it's a Marelli ignition system and runs the two banks of the V12 separately. They can be a real pain, as often one side will start to quit, sometimes completely.

Regards

Ric