Advantages of MSD ignition?

[dth]

Iv had this in the past with different set ups , all iv ever done is pull the plugs and either replace them or clean them and
it,ll fire right up , always after sitting for prolonged period over the winter .

[leec]

Hi Donald,
Glad I am not the only one. When it's happened before fresh plugs has solved it as you describe but there has to be more to it than that surely? As I'm sure you can appreciate its a ball ache getting plugs out in an oval!
Lee

[dangerous]

These two most recent replies above are what I feel.
Keep it simple.

Always do your basics first before complicating basic fault finding.

As much as I love my MSD, if it fixes the problem, you probably had an underlying issue.

[leec]

Completely agree, I want to keep my msd for the new race motor. But essentially I am running out of options to check. I still believe I lack voltage to the coil but have checked all the wiring and nothing obviously wrong. I also don't believe I shouldn't be able to leave it for a bit without running, then have to pull plugs to get it to start. My 1776cc in my 63 bug goes for months sometimes, then fires up.
But it's a lot milder in terms of spec.

Stumped to be honest
Lee

[pupjoint]

Do you have Fred's reply, I'd be interested.

  thanks,

Andrew

pm me your email

[RichardinNZ]

I see the Winterburn can be 6 volt, but does anyone know any other 6 volt options?  Thanks

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[Andrew]

Not that I'm currently aware of.

I imagine, historically speaking, Winterburn had to cater for 6volt ignitions as well as 12volt, after all his patent is mid 60's and was granted in 71. One assumes he started work well before that, so plenty of 6 volt cars and probably other stuff like aero about then that might have been non-12v.

Looking at the circuit there's nothing on there that says "12v", if you see what I mean?

In fact, if your battery was in good condition then  the 'coils' on the Winterburn design could be wound in such a way that it would be as good as a 12v ignition, you just need to draw twice as much current on the primaries to get the same spark.

Andrew

[RichardinNZ]

Not that I'm currently aware of.

I imagine, historically speaking, Winterburn had to cater for 6volt ignitions as well as 12volt, after all his patent is mid 60's and was granted in 71. One assumes he started work well before that, so plenty of 6 volt cars and probably other stuff like aero about then that might have been non-12v.

Looking at the circuit there's nothing on there that says "12v", if you see what I mean?

In fact, if your battery was in good condition then  the 'coils' on the Winterburn design could be wound in such a way that it would be as good as a 12v ignition, you just need to draw twice as much current on the primaries to get the same spark.

Andrew

Thanks.

Yes it's the only option I can see too. I think I'll get the Winterburn in time....

I have a well behaved 6v system and good (optima) battery so as you say ultimately it could be as good as a 12v ignition system...if only I could expect the same from the headlights.

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[modnrod]

....if only I could expect the same from the headlights.

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http://www.classicandvintagebulbs.com.

[RichardinNZ]

Thanks for the link!

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[leec]

Just to deepen the mystery, it started on the button today. Have done/changed NOTHING!!

I give up with cars 

[DaveN]

so no advantages then? 

[leec]

so no advantages then?  

Made my day when it fired! Wished I could have gone out for a drive but I had no front wheel studs!
Lee

[Andrew]

Could it be moisture/damp related? Been a bit drier in the UK of late....

[leec]

Exactly what dad and I thought. Certainly has warmed up recently as our new house (project) has no heating. Any positive temp change is noticed at the moment