flanned the headers 

Non maintenance of the cooling system that results in a blown head gasket, antifreeze leaks on to hot exhaust manifold and creates steam. When the antifreeze mixes with the oil it has the color and consistency of flan, thus, the term; “flanning the headers” is applicable.

I flanned the headers and damaged the engine.

flanned the headers by Dora the Destroyer May 31, 2018