Quote:
Originally Posted by njsteve
Those photos were taken the first day I got the car home. That blue plastic scotch-lock connector was the first thing to go. I remember Enrico saying he had an underhood oil pressure gauge mounted, back in 1973 so maybe that was for the gauge's internal lighting? There isn't any shroud on the emission valve. I think it's an optical illusion in that photo, of the black terminal on the idle solenoid in front of it. The valve has black plastic body.
Here is a photo taken that same day as the photo in your posting. The emissions valve is visible. There were no hoses connectedd it to as the third owner was trying to diagnose a carb problem that he thought was in the original carb - it wasn't. It was actually due to having the TCS hoses connected correctly and then having them kill the vaccuum advance.
I make it a habit of connecting the distributor to the manifold vacuum and tuning the car in that state. The performance difference is quite noticeable. Remember that the factory TCS system was designed simply to give a good tailpipe emissions reading and the emissions police couldn't have cared less about how badly it affected the engine performance.
I hook up the hoses in their factory position but with a BB or ball bearing in specific hoses to rearrange the actual vaccum signal to go to the distributor directly.
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Ah, that is a better picture and I do see everything I thought. That is a different ported vacuum switch than I have seen. Mine and any spares I have look like your EGR ported Vacuum Switch.
I think I'll have to try the BB trick on mine so it looks like everything is piped correctly.