Hi Ron,

The 1800 MC does have the circlip holding the whole kit and kaboodle in place. The adaptor is this...



I didn't take any 'before' pictures of the MC, but it is exactly as you see inside the pedal box. I actually tried to make an adaptor myself but that was a total disaster! Oh, yes, those numbers are ipd part numbers.

The tube the plunger goes into is part of the 1800 MC. The original looks like this, with the solid ram and collar to match up with the pedal.




The new one had just the tube out the back. I used the saddle shaped bracket from the old MC on the pedal and connected the 2 pieces with an adjustable length ram made from a long carriage bolt cut to size and ground smooth on one side. The 'old' one pictured is actually not the original single circuit, but a dual line one of a '67 1800 I parted out. I used it to mock up the lines and what not while waiting for the ipd order to arrive.

Does that make any sense? Anyway, if not, let me know. My writing is not the most clear.
--
Justin 70 1800E, 66 122E, 71 145S
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