One check you can make is the spark plug gap, the bigger the gap the harder the coil has to work and overheat, also the resistance in your HT leads, do they match the standards compared to the originals, your workshop manual should give this info.
Forgot to mention about the ignition module check to see if it is live all the time and not turning off with the ignition, a faulty module will kill your coil eventually.
Last edited by phil.coyle; 17th June 2016 at 11:53..
Reason: grey moment
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