Cleaning a riser on 3208NA Cat.
Decided lack of water thru the riser into the exhaust elbow caused a hot spot on the elbow. I had cleaned the small water holes when I replaced the previous elbow but must not have got deep enough into the riser to clear the holes on one side.
I took the riser off today to get it cleaned. Now, where do I get that done? Can a radiator shop boil them out? I don't think I want to try it although I did buy two gal. of muratic acid some time back when I thought I might try to boil out the whole engine. After some further study decided to not do that at that time, but the burned out rubber elbow says I need to at least get this riser cleaned up.