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B20F Skipping 120-130 1964

posted by  morton on  Sun Apr 1 17:56 CST 2012
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I have a '64 122s with a 1974 B20F motor.

The motor has Weber DCOE 45's, has been bored (years ago) and has what I assume is an IPD street cam.

I am hoping you can help me diagnose a problem with the motor as it 'misses/pops (not backfires - but pops)' consistently - and fouls the plug in #2 cylinder (counting from the front).

I've recently installed new spark plugs, cap, rotor, and plug wires

I've also adjusted the valves carefully -on more than one occasion.

The distributor is Serial 003 aluminum - and already has an 'electronic' module in it. The car also has an MSD ignition module (mounted under the dash) and MSD coil.

The distributor shows signs of medium/high wear (significant shaft play in housing).

The compression appears to be within tolerances:

1 = 136
2 = 152
3 = 160
4 = 145

The car ran very strong until one day the missing ensued.

Please advise thoughts as am leaning toward buying a new distributor (123Ignition)?





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New B20F Skipping [120-130][1964]
posted by  morton  on Sun Apr 1 17:56 CST 2012 >


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