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The diagram I received from the new 9 hole vacuum line has a comment about the black line has to go to the vac source on the firewall side. What is the source line I am supposed to plug this into and there is a T so what is the other line? Pic below. My memory has lost this info from the tear down. Car is an early 69 with PW, PS, PB and AC.
Thanks,
Mike - It's better with Orange!
The "source" is the fitting on the intake manifold. It goes thru a small in-line plastic filter, then thru a one-way valve which splits the output into two lines. One goes to the vacuum reservoir and the other is the line going into the firewall. That is "manifold" vacuum source.
Thanks 7T1vette! I had to run out early this morning but I took a pic of the source. Not the best, car is dusty and I didn’t have the time to highlight the areas in the photo below. But is this source correct? There is a line off the small plastic filter which I haven’t figured out yet. But the line sizes (hole size) is quite different. Is the line from the interior supposed to plug into the end of the white filter? Both lines are sitting on too of the air cleaner.
Thanks,
Mike - it’s always better with orange.
There should be a multi-port fitting on the intake manifold, below the right-rear area of the air cleaner. Both of those fittings should connect to that 'intake manifold' vacuum fitting. If there are other ports on that fitting, make sure to cap any port that is not being utilized.
Thanks 7T1vette. I will check this weekend to finish this lose end. I thought I put other lines into that manifold vacuum fitting based on the diagram. With the air cleaner on I may have lost track. Too many lose ends
69 L46 AC vac source
