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Lister D Lucas Mag

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Lister D Lucas Mag

Post by Stingray on Tue Jan 29 2013, 07:09

Hi All

Hope everyone is doing very well.

I need some help on a Lucas mag for a Lister D Engine.
When you turn the mag and touch the wire it will give you a little shock.
When you apply a spark plug and turn it, you get no spark. I have tried many plugs so its not the plug.

Can someone also confirm a replacement part condensor for a Lucas mag.
Where I stay we have no Mag mechanic or people who works on these kind's of stuff.

Many thanks. Raymond.

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Re: Lister D Lucas Mag

Post by matt86 on Tue Jan 29 2013, 09:42

have you cleaned the points?

Have you checked the resistance of the coil with a multimeter?

There are people that work on mags I use matyn at vintage mags., do a search on here his details are there.

Matt

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Re: Lister D Lucas Mag

Post by stationary stu on Tue Jan 29 2013, 12:45

Matt, Raymond's problem is his location as he's in South Africa. Shocked

Raymond I don't know the answer but it's common to have a mag spark at a plug but once you put the plug in the engine it won't spark due to the compression. So it's better to come to light now rather then later. I'd try giving the mag a clean up, remove the points and give them a good clean and file the contacts flat, refit and re-gap. What gap are you setting the plug at? maybe try it at 15thou see what happens then.

Stu.

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Re: Lister D Lucas Mag

Post by Foden on Tue Jan 29 2013, 15:27

You say that you only get a little shock when you touch it Raymond, try turning it in the correct direction with the HT lead just a few millimetres away from the magneto body and you should get a decent spark as it goes over the point of magnetic pull. If you haven't got a spark then I would suspect the coil is failing. To test using a plug make sure that you have the plug earthed otherwise it will not work!

Pete.

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Re: Lister D Lucas Mag

Post by Stingray on Wed Jan 30 2013, 07:47

Hi matt, stu and pete.

Thank you for all the help and information.

I cleaned the point and adjusted the spark plug gap as required.
Battled with the timing and amount of feul into the carb, but she fired up.

I had her running for 15 min or so and sounds very good. I can now start restoring the old girl.

It is a 1952 Lister D and not in a good condition, but non the less she is running.

Best Regards
Raymond. cheers

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Re: Lister D Lucas Mag

Post by stationary stu on Thu Jan 31 2013, 16:22

cheers cheers cheers great news Raymond, it's always a good feeling inside when you get them to start up.

Good luck with the resto and please keep us informed of how you get on.


Stu.

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Engines are just like Pringles .... one is never enough.  Very Happy                                        I used to love tractors all I would ever think/talk about. Then one day out of the blue I went on to statinary engines, So you could say I'm an extractor fan.

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Re: Lister D Lucas Mag

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