No doubt Crane want you to purchase one from them. It shouldn't be needed,
the spark plug gap limits the maximum HT voltage that will be developed
regardless of how much the electronic ignition unit is producing or what
coil you have. If you go above the 32thou plug gap then you will need HT
cables with much thicker insulation and then be stressing coil, cap and
rotor. The main reason for them telling you to replace all that is that if
you are fitting it because you have ignition problems, then unless it is
just down to the points and condenser (which are cheap and easy to replace)
you will have the same problems afterwards! It's very easy to replace
knackered original parts with expensive after-market gubbins, then crow
about how good the new stuff is. If you *do* have ignition problems, then
you should be diagnosing that and not throwing money at it that isn't
needed. Electronic ignition is greatly overrated, a sound original system
is perfectly adequate, and the 45DM4 system originally fitted to a 1980 MGB
is one of the best electronic ignition systems you can get anyway.
PaulH.
----- Original Message -----
> The installation instructions suggest that I also replace the coil,
> rotor and cap, spark plug wires, and spark plugs.
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