Welding On Exhaust Manifold. A well-prepped welding job goes very smoothly. Can you use JB Weld on headers.
This cast iron exhaust manifold from a Cummins diesel truck was headed for the junk pile because the shop did not have a cast iron welding rod to repair it. Welding the manifold while it is still on the engine is very dangerous because flammable chemicals are everywhere. Welding a cracked exhaust manifold can save you a lot of money.
Heres how to go about doing it.
Remove the exhaust manifold from the vehicle. To avoid burning through your exhaust it is ideal to use a medium amperage range to avoid burning the soft surface. The job of welding the exhaust manifold is not an easy job but with the right tools and this guide you will be able to weld your exhaust manifold and save yourself money. Is it bad to drive with a bad exhaust manifold.