Marelli S112 BX in my 1966 911

[wprater]

Finally shaking this car down after it's been hibernating from PO for far too many years. Has been driving very strong and smooth aside from the issues yesterday.

During a few hundred miles of hard driving yesterday, I started to get some spluttering and hesitations during hard acceleration and high RPMs. Car finally died, and had to tow it back to LA.

I was tempted to think this was a fueling issue, but I decided to inspect the points, distributor, etc.

I found the points in bad condition and an extremely stiff/sticky shaft on the S112 BX in my car. It was also quite dry around the shaft.

I was planning to rebuild this distributor and send off to a shop to test it. I wanted to keep the car stock as possible. But now I've realized this is not correct for the car anyway.

I am also considering the 123 route without a CDI box. Or rebuilding what was in there.

Any ideas why one would swap this out versus the original Boscsh -- any other reasons I should be considering? Im still running non-CDI, but the PO has an aftermarket coil. Aside from a receipt for high-dome S pistons 9.8:1 2.0 liter, I think the car is in stock configuration. It should still have Solex cams in here, but I do not know how to tell.

Here are some photos.

Attachment 608092Attachment 608093Attachment 608094Attachment 608095

[wprater]

Also strange that my BX has the condenser attached, whereas I thought the AX model was for non-CDI cars. This car may have at one point (seen via old photos) had an MSD box installed, but was reverted to be more stock ("looking").