Re: Intake Manifold Vac lines

Posted by HH56 On 2018/1/5 23:44:58

One thing that should work is to get a set of number or letter drills and after cutting the tubing off close to the stove start with a drill just barely larger than the ID of the tube you are trying to get out. Drill as straight as possible and be sure to follow the tube and not angle off into the stove. Use another drill just a few thousandths larger and repeat. Do this until the last drill you use is the size of the OD of the tube. You won't need to go very deep -- maybe a half inch or so.

Unless someone has soldered the old tube in the stove it shouldn't take more than a drill size or two before the rust lets go or the tube walls are so thin you can break the old tube out of the stove. If the tube starts to rotate or as you break the walls be careful something isn't pushed down into the stove. If it is brazed or soldered you will have to go thru more sizes until the OD of the tube is reached.

After the old tube is out use a file or a final drill to clean up and make the opening a size the new tube OD will barely slide into. As long as the stove has not rusted you should have plenty of thickness to work with. Be sure to blow any chips or filings out of the stove so they don't get sucked into the choke area.