Manifold stud removal
 

I bought an after market intake for my 29 model A. In anticipation of installation of this intake, longer manifold studs are required and supplied. I am just wondering if the removal of the original manifold studs will present a problem and if anyone might have a bit of advice to insure that removal of the original studs will go smoothly. I have searched for information but nothing specific has addressed this topic that I have found. Any help will be appreciated.

Re: Manifold stud removal
 

I may be lucky but I have had a lot A model engines in my shop and manifold studs have never been a problem
wish I could say the same for head studs

Re: Manifold stud removal
 

I purdy much agree with Colin . I use a pipe wrench to remove manifold studs and have never had a problem. Anything can happen when removing really old studs so you are really on your own. If you plan on using the original type exhaust manifold, longer studs will be a problem . Good luck.

Re: Manifold stud removal
 

As the fellas said, they should come right out. I usually just double nut things like that and back them out. A bit of heat may help if they don't want to budge.

Re: Manifold stud removal
 

Double nut each stud with two manifold or head stud nuts. Run the first one down on the stud shaft to where the threads run out, followed by the second one nudged right up against the first one. Use an 11/16" wrench to hold the inside nut and use a breaker bar with an 11/16" socket to tighten the outside nut against the first one. Get them as tight as you can. You want to put the first nut as far towards the engine as you can so that you have less stud shaft flexing. Now use the longest 11/16" wrench you have on the inside nut and exert force to back the stud out. The inside nut holds against the outside nut to remove the stud. You might take a heavy hammer and smack the end of the stud before trying to back it out in this manner. Sometimes the shock waves this creates will break loose the metal-to-metal hold the stud has developed to the engine block.
If, with a reasonable amount of force short of twisting off the stud shaft, you cannot remove the stud and nuts, apply some heat on the block surrounding the stud. Then try removing the stud. If should come out, even if you have to heat the area a couple times. Don't worry - The odds of twisting off a manifold stud are much lower than using the same procedure on a head stud. It works there, too, but there is more stud shaft twisting going on that may end up breaking. Heat is your friend in these operations.
Marshall

Re: Manifold stud removal
 

Patrick - We were typing and posting at about the same time. You said the same thing I did, only in fewer words. :)
Marshall

Re: Manifold stud removal
 

Ok, several good pointers here and I really appreciate your constructive advise on how to tackle this situation. I read this board from time to time but rarely comment. I figured I would get good advise from the fellas on this board for sure.

Re: Manifold stud removal
 

Re: Manifold stud removal
 

https://www.youtube.com/watch?v=4IFF_-6xwpE

Here is how people with money do it.....

Re: Manifold stud removal
 

You could also have a friend tapping on the end of the stud while you are trying to back it out. Ed

Re: Manifold stud removal
 

Suggest you return the manifold and purchase one that requires no stud replacement .All the major suppliers stock them.

Re: Manifold stud removal
 

In reading the first post I'm assuming (I know) he's not installing a stock manifold.
Paul in CT