Basic coil / distributor question, 73 MGB
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Basic coil / distributor question, 73 MGB
Hi Guys,
With the key on, should I have 12 v at the wires coming into the coil with the coil disconnected?
Should the main distributor wire coming from the coil have continuity on each end or is there some resistance expected?
Although quite familiar with the concept I am lacking in experience with the old systems. Over the weekend I helped my neighbor pull out his MGB which had been stored for 5+ years. After replacing hte battery she started up and ran a bit rough, probably due to old gas. He said he had a set of plugs and points & condensor in his garage that he had never installed so I installed them for him.
After changing the plugs it ran a bit better but not much different.
When I changed the points & condensor I first had the 2 wires (incoming wire and condensor wire) on the wrong side of the plastic spacer which isolates the points. We had no fire at all. I then put the wires against the point cointact (proper position) and under the plastic bushing. Still no fire. Gap is right at 0.015" on the points.
There is no continuity on the distributor cap wire from the coil. I get 12V for a split second when I touch my multimeter leads to the incoming coil leads and then it drops down to like 1/2 volt.
Can I check the coil by holding the distributor cap wire close to a ground? Haven't worked with a points system that I can remember although I've dealth with distributors, caps and rotors before.
Thanks for any help / advice.
With the key on, should I have 12 v at the wires coming into the coil with the coil disconnected?
Should the main distributor wire coming from the coil have continuity on each end or is there some resistance expected?
Although quite familiar with the concept I am lacking in experience with the old systems. Over the weekend I helped my neighbor pull out his MGB which had been stored for 5+ years. After replacing hte battery she started up and ran a bit rough, probably due to old gas. He said he had a set of plugs and points & condensor in his garage that he had never installed so I installed them for him.
After changing the plugs it ran a bit better but not much different.
When I changed the points & condensor I first had the 2 wires (incoming wire and condensor wire) on the wrong side of the plastic spacer which isolates the points. We had no fire at all. I then put the wires against the point cointact (proper position) and under the plastic bushing. Still no fire. Gap is right at 0.015" on the points.
There is no continuity on the distributor cap wire from the coil. I get 12V for a split second when I touch my multimeter leads to the incoming coil leads and then it drops down to like 1/2 volt.
Can I check the coil by holding the distributor cap wire close to a ground? Haven't worked with a points system that I can remember although I've dealth with distributors, caps and rotors before.
Thanks for any help / advice.
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