Checking a mk II coil

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Donald A
Posts: 78
Joined: Mon Mar 06, 2006 6:08 pm
Location: UK

Checking a mk II coil

Post by Donald A »

I attach photos of a mark 2 ignition and the supposed way of checking
I think I must be missing something obvious but here goes
I put a voltmeter on the 200 ohm scale (the minimum) on the bit jutting down (ht lead receptor, point A) and on fixing bolt to base plate point B
Should be 4.78 and I get the number 1 that the voltmeter started with before applying the leads
Obviously the picture only shows the position of the leads - I had to take the photo!
What am I doing wrong?
Donald
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Collector Inspector
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Joined: Sun Jun 29, 2008 4:32 am
Location: Perth Western Australia
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Re: Checking a mk II coil

Post by Collector Inspector »

Open circuit.

I gather that you had no spark initially?

BnC
A chicken is one egg's way of becoming others
Donald A
Posts: 78
Joined: Mon Mar 06, 2006 6:08 pm
Location: UK

Re: Checking a mk II coil

Post by Donald A »

I don’t know - it came from my spares box. The real question is what is the proper way of testing a mk2 coil.....?!
D
Donald A
Posts: 78
Joined: Mon Mar 06, 2006 6:08 pm
Location: UK

Re: Checking a mk II coil

Post by Donald A »

And I should have added .... by a layman without the knowledge or the equipment to do it professionally....
D
haventaclue
Posts: 164
Joined: Thu May 01, 2014 11:09 am
Location: Donegal

Re: Checking a mk II coil

Post by haventaclue »

Go up a scale to 2k,200 might be a bit weak for measuring resistance on the coil
Donald A
Posts: 78
Joined: Mon Mar 06, 2006 6:08 pm
Location: UK

Re: Checking a mk II coil

Post by Donald A »

Still nothing on A to B or A to C
Interestingly, on the 200 scale, the B to C measurement goes from 0.3 points closed to 1.3 points open, so something is working!
D
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