TOPIC:

It wasn’t the lifespan of the coils I was referring to, Paul.  I was just wondering how much the resistance of the primary windings of the coils will be influenced   ( increased I think) by the temperature, due to their location.

Sorry for the poor quality but my garage has no lighting and it was pissing down
you can get the general idea and see just how tight it is in there. I mounted them as the originals were, one in the middle on top the other two hang underneath.