Hi All

I have a 67 1800 which i fitted a Crane XR700 ign module to ( with IPD diode )

I have done about 500 miles since rebuild

I then had a problem where the oil exited the engine with subsequent over heat

New head gasket fitted and since then the engine turns over with no start

A lot of engine cranking was done

I pulled a spark plug out and rested it on the rocker cover and checked for spark which appeared to be very weak and possibly intermittent

I pulled the high tension lead to the distributor and noticed a weak spark from it

Thinking i held it too far from the rocker cover i reduced the gap to 1/8" and no spark is evident at all

The light on the Crane module lights as it should (on and off with messages from the dist )

I am guessing the coil

Could you please enlighten me of a test procedure and if i were to fit a blue Bosch coil, the wiring i would need to do

I am guessing i would not need the IPD diode

How should i ascertain if the ign switch is faulty

Thanks for any advice offered

Davids