George,
After I banged the dents out of my 142E's tank I expected to get a lot of junk, that the famous baffles wouldn't let me get at, to come out -- I had already destroyed the pick-up strainer in an effort to clean it. So, I put a plastic, see-through filter between the tank and the pump. The first one filled up with junk after the first two tank-fulls. Didn't block the flow, though. The second one is still picking up rust flakes, but at a slower rate. When that one is good and dirty I'll replace it with one of those fancy see-through filters with the chromed metal ends -- not for looks, but because they are sturdier than the throw-away plastic type, which I am concerned about being damaged by road debris. Furthermore, the filter element can be taken out and cleaned or replaced which, at that point, I hope, will only need to be done infrequently.
Bob S.