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Reply to "Vacuum Diagram anyone?"

Adams my friend, I can probably dig up a diagram somewhere. But before I do, my recommendation is to connect the outer cannister of the vacuum advance directly to ported vacuum (a nipple located on the side of the carby) and throw the remainder of all that plumbing away, plug the various vacuum nipples with those little rubber caps made for that job.

One of the little goodies on the Pantera is a switch, screwed into the engine block's coolant outlet, that slows the engine's idle speed as the coolant system over heats. Reducing the idle speed of the motor makes the motor want to die when its hot and reduces the speed of the water pump, therby pumping less coolant. Slowing the motor was intended to reduce the heat load on the cooling system, but circulating less coolant causes the motor to overheat WORSE!

Ford orignally designed the vacuum advance plumbing for their engines in that period to increase the engine idle speed when they got hot. But in Italy they did things differently.

The rest of all that vacuum spaghetti was solely designed to pass 1974 emissions testing, and had nothing to do with optimizing the performance of the motor.

Let me know if you still want that diagram. If you must replumb all the vacuum hoses, I would suggest plumbing it the way it came from Ford, and leaving off the Italian engineered bits.

cowboy from hell
Last edited by George P
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