This is a well known issue with MSD. Bend the rotor tab up so it makes constant contact with the button. You are arcing now. Once you bend up the cap will last 4ever.
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Originally Posted by SwiftDB4
This may not be relevant, but have you checked ignition? My Roush 427SR with MSD had oily plugs and ran really rich when new. Traced down the MSD distributor cap center electrode had broken off! Since then I've replaced the cap for a second time with the same problem. Fuel washdown probably caused some permanent damage, but the engine was off warranty by the time I found out the problem. Oil consumption is now 1200-1500 miles/ qt., compression is 170psi+, and the plugs are dry so I'm living with it. |