Got a new inlet pipe from a vendor. The flange looks folled out and doesn't look like it will fit well. Any body have dimensions or blueprint pic of flange area ???
Seen one here before but can't find it. Hoping to get a good/proper fit to manifold.
Thanks, George n L.A.
Unless you want your car to be correct, go to a good muffler shop and have them build an exhaust system and do away with the brass nut and flange.
I had a real good muffler guy build a exhaust system out of the next size larger pipe and swelled the pipe to fit over the threads on the manifold and clamped it with a regular exhaust clamp. You will never be sorry you paid the extra money. perfect
I don't have the flare dimensions...but I recently did one with a repo pipe that seemed a little hokey looking at the flare end and I wondered if it would make up.
Can't say what I did was right, but got it to mate up leak-free.
Snake the pipe in and tie the back end loose to the frame...hold it so there is maybe 1/2" space at the elbow to the hogshead...crank 'er down and keep cranking until it won't crank no more. I use the standard T wrench, but a good pipe wrench works too.
Then take it apart, and put it back together. Made up fine...no leaks
Now...as far as the other end...sometimes the stock length works fine, other times I have to cut maybe 1/2" off. Never have figured out why, just be ready if the back muffler 'eye' doesn't line up with the hole in the frame.
One other thought...
Guys talk about the repo bends being all wrong. I don't know, I always get them to work. For that final hook up, I slide the pipe in the muffler, mount the muffler at the back bolt and only THEN twist the front until I get the flange just right and a few threads going. Then just crank 'er down. FWIW
I can attest to Richards advice. I bought the car he is talking about and the exhaust is a work of art. The guy put a bunch of bends in it to clear everything. I wished he would have saved his machine set up and started manufacturing that pipe!
Fellows, whatever you do, do not use the brass nut to pull the flange up to the manifold. That will put stresses into the manifold and will surely lead to bending, especially if you do not use gland rings.
Instead, take great care making sure the flange mates neatly to the manifold and use the brass nut solely to hold the flange against the manifold.
Hope this helps.
Akllan from down under.
From the Ford drawing: The greatest diameter of the flange is 1-3/4" and the angle is 45 degrees.