So I went to the dealer yesterday and bought the vacuum line various Y fittings and new 3.5mm ID rubber hose for the connections.

Also bought the check valves to connect up the seat back and AC systems, but they are on special order.

I hooked up the emissions stuff as I described it in my first post and the car started and ran OK. Timing was about 3 BTDC with no vacuum and went to about 8 BTDC with the system connected.

This seems backward to me, and I am wondering if I have the advance and retard lines switched. I am coming off the front switch to the fitting on the distributor 'pot that is on what I would call the "front" of the distributor, even though it is facing the rear of the engine. The back switch is connected to the "rear" connection on the 'pot.

Opinions on this?

I did not have a chance to do much testing of the switchover functions as the car is on jackstands in the garage and I was pretty well "gassed" after a couple of minutes.

Also learned 'way more than I wanted to abour replacement vacuum tubing, but that's a subject for a separate post.

__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe