Distributor Cap and Rotor Condition with MSD 6AL2
Hi Ed, you mentioned that you didn't have any problems with the condition of the distributor cap, lucky you! I've just done about 2000kms, maybe a bit more, and here is the condition of my cap and rotor (I am running the MSD 6AL2 programmable with the stock dizzy (advance locked out)) . yowza! I noticed that starting the car was a bit less crisp than when I first installed the system, so figured that it was probably due to a slight shift of the timing (from wear of the points) as the points are still the trigger for the programmable ignition (although high current no longer flows through the points). of course the points gap had reduced to about .25mm instead of .35 to .40 so this of course means a shift in the advance, and the condition of the points was near perfect, but the condition of the rotor and cap was quite surprising, I put a new cap and rotor on when I installed the ignition (so 2000-ish kms). I reset the points gap to 0.4mm and replaced the cap and rotor with the original ones I took off when installing the MSD (which wern't really worn much), and of course everything is great, as new. Is this what your cap and rotor look like? I can't say for sure that this is the cause of the (very slight) deterioration of performance of the ignition as it could have been simply the shift in advance from the points wear. But certainly I've never seen this amout of "burning" on the cap and rotor with the standard ignition. Still not complaining though, the ignition is truely excellent, and transforms the low end behaviour of the car.
cheers / andrew
69 1750gtv / 73 2000spider / 91 Spider (daily driver)