If you are removing a cylinder head for repairs, you don't have to remove the nuts, and break-off the stud bolts or ruin the exhaust manifold. Don't even remove the retaining bolts holding the exhaust manifold(s) to the cylinder head or the bolts attaching the cross-over pipe to the exhaust pipe either.
- This process works well, makes things very easier and the connection may be as tight as the original pipe.
- If have a "straight" 4-cylinder, or an old straight six then there is just one pipe to cut going back to the exhaust pipe.
- Cost for 2 clamps and the exhaust connector is about $5 or less.
- If you don't have enough "play" to get the connector in, just cut a short piece (about 1 inch) from the end of the pipe; reinsert using the play you have, and then tighten the U-bolts down.
- Since this pipe is almost always 2" x 2", and both ends (where you cut) will be identical, not only is very easy to do, but the connector is easy to find, and a very common size.
- Don't make the cut(s) too close to either of the usual places they connect. Do it in the middle at a place where you won't have a problem cutting it or getting the U-clamps on the pipe.
- Use adequate ventilation. Don't ever run the engine even a few seconds in a closed place. You need open ventilation in a garage -- not just a window open where the engine will be running.