26-04-2017, 01:59 PM
Hi.
I had three 2CV's including a 6 volt 1960 AZL, never had the issue of starting on one cylinder. The plug gaps though were fussy too big and they misfired so possibly if the gaps are too wide then there might be an issue.
The 1.8 Rover has two coils only and uses the wasted spark set up. What you can see though is erosion on the side electrode on two plugs and erosion on the tip of the other two but on the 75 the plugs will do 60,000 miles plus (recommendation to replace at 60,000 miles) so if there was an issue then surely misfires would show up long before that.
There is also a lot of positive earth cars that have been converted to negative and no one bothers with the coil. I'd not worry if the coil was wired wrongly perhaps one of those spark EHT testers would be a way of seeing the energy difference on polarity reversal.... assuming there is any.
I had three 2CV's including a 6 volt 1960 AZL, never had the issue of starting on one cylinder. The plug gaps though were fussy too big and they misfired so possibly if the gaps are too wide then there might be an issue.
The 1.8 Rover has two coils only and uses the wasted spark set up. What you can see though is erosion on the side electrode on two plugs and erosion on the tip of the other two but on the 75 the plugs will do 60,000 miles plus (recommendation to replace at 60,000 miles) so if there was an issue then surely misfires would show up long before that.
There is also a lot of positive earth cars that have been converted to negative and no one bothers with the coil. I'd not worry if the coil was wired wrongly perhaps one of those spark EHT testers would be a way of seeing the energy difference on polarity reversal.... assuming there is any.
