I’ve seen the blow torch method video to remove it, but that seems like a waste of time and a propane canister. Can I just let the engine burn the coating off the headers on the first start up, then remove the manifold after it’s cooled down and paint them with some VHT flame proof paint?

 

If you keep it on it will help you tell of the cylinders are heating up evenly when it burns off on it's own. Helped me know forsure my brake booster was going out.

 

Alright, I’ll plan on leaving it on for the first fire.

 

Pearce, please help me understand how the paint on the headers gave sign of your brake booster going out.

I guess I follow the individual cylinder temp, part...also Hatted, I believe it takes a few heat cycles to burn off the shipping coating.

-Aaron

 

It was leaning it out and getting hotter just in the 4th cylinder because the line taps off the manifold inline with number 4.

 

I see; yes, of course. Never had a booster go bad, I don't think if I had I would have been smart enough to sense it making the truck run different/diagnose it that way.

Air passing by a failing vacuum diaphragm, feeding fresh unmixed air to cylinder four; paint on header indicating that same cylinder's temp greater than 1-2-3, by, burning off quicker. Number four lean. Bad booster. Internalization complete

Ur a genius

 

I noticed it running rough at idle at the same time as seeing that paint was burning off 4. I have a bad cylinder for the clutch. So I would start it in gear with my foot on the brake. Not many times would I be off it at idle.