My uncle swore by using a propane torch to heat a stuck injector, and it actually worked on a 6.7 Powerstroke last month.

He's been a fleet mechanic for 30 years, and I was skeptical. We had one injector that just wouldn't budge after trying the puller and soaking it. He said 'just a little heat on the body, not the tip, for about 30 seconds.' I was worried about damaging the head, but we wrapped the surrounding area in wet rags. Gave it a shot, and it came right out with a solid tug. I'd always avoided heat on fuel systems. Anyone have a different trick for a really stubborn one, or is this a bad idea on certain engines?

3 comments

3 Comments

tyler613d ago

Wrapping things in wet rags sounds like a good way to avoid melting anything important.

clark.robin13d ago

Reminds me of a guy who used a torch to free a frozen brake bleeder screw on his old truck. It worked, but he also melted a nearby plastic line.

sagew505d ago

Watched a buddy try that on a stuck glow plug in his old Mercedes diesel. He got the torch out, heated the thing up, and it snapped clean off. Spent the next three days drilling out the remains. Sometimes the heat makes the metal brittle, especially on older stuff. I stick to the penetrant and patience method now.