I had some guy weld my exhaust manifold back together. I was pretty desperate, and he did it in short order, but I've got to go back and complain about some smaller things that aren't right. Before I do I'd like to know if I should complain that the heat riser shield over the exhaust ports, with the hose connecting to the aircleaner, wasn't put back on. The hose end is now just parked nearby the manifold. (Thats better than when I recieved it, with the hose sticking through the unfastened van engine cover into the passenger compartment.)
What benefits am I missing without the heat riser? Does it protect my spark plug wires? Will the slightly cooler air cost me a quarter mile per gallon? I'm frankly clueless.
Nils