Topic: vacuum port

[aaatp]

I've added power brakes (drum) to my 66 289 V8 A/T convertible.  I have the double connection brass vacuum port that screws into the rear of the intake manifold. I have the proper steel line for the vacuum booster and understand where it attaches to the vacuum port, but I am at a loss as to how the steel vacuum line for the transmission attaches to the brass fitting. The fitting on
the original transmission steel line is to large to screw into the brass port. I'm guessing I am missing something. Anybody have
any pictures of an original setup they could post to help a guy out?

Thanks: John

[J_Speegle]

Believe that the vacuum line to the trans is the same - PB and non PB so it should still use the small rubber hose to attach to the vacuum source. Not sure if I have a picture but will look - not allot of car owners wanted power brakes on these little cars in 66 though

[bryancobb]

Hi guys,
I had the same question and got it nailed down to the fitting shown below.  Now some 65/66 cars have a "hard" line from the modulator, all the way to the brass fitting.  My car had a hard line that terminated just in front of the firewall, pointing vertical.  Then the brass fitting had a taperd steel line that screwed into it and pointed vertical just a little aft of the air cleaner.  A rubber line made an "upside-down U" that connected the two.
For brakes, a steel line humps over the left valve cover and points toward the shock tower.  Then a rubber line goes to the booster.

[aaatp]

Bryan: Thanks for the picture and the schematic that helps greatly. It looks like I'm missing the hex fitting that comes out of the top of the brass fitting.  What I'd like to know is what does the steel line look like that comes out of the brass fitting and connects
to the rubber hose that goes to the transmission steel vacuum line.

Thanks: John

[bryancobb]

Mine is just like this one but his is pointing the wrong way.  It's suppose the point vertical parallel to the rear vertical surface of the bottom half of the air cleaner.

[aaatp]

Bryan: Thanks, that helps clear things up. That steel vacuum tube looks like my original, did you just rotate the tube in the fitting to get it to point in the proper direction or did you have to bend it some?

Thanks: John

[bryancobb]

The transmission one?  Just rotate, no bending.
The brake one?  I still havent found the correct one.

[aaatp]

Brian: Was just referring to the transmission one.
     Thanks again for the info, it was a huge help.

John

[kutzoh]

Anyone know if the brass vacuum port is painted black (block color) or left natural brass. Mine got painted during the restoration. Trying to figure out if I need to strip it or leave it painted.

Thanks,
Greg

[bryancobb]

I would SPECULATE that if it were in place when the engine was painted, engine block color might be slightly logical, but painting them black in a separate operation would cost Ford too much $ and that would not be logical.

What seems the most sensible is if the vacuum fittings were installed after the block was painted, and during the engine's final "dress-out" when all the "do-dads" were added.  IMHO it was probably installed just as it was received from the vendor, having been tumbled to remove flash.

[aaatp]

I've been trying to locate the proper brass hex fitting, that the transmission line screws into, but am not having any luck. I found something at Home Depot that looks right, and screws into the brass fitting that the power brake vacuum steel line screws into, but it does not have the inverted flare fitting inside to accommodate the flare of the steel transmission tube.  Anyone have any ideas where I might pick one up?

Thanks: John