Home › Forum › Ask A Member › QD19 running a little hot? › Re: QD19 running a little hot?
Not having a QD-19 exhaust housing in front of me I can’t say for sure but the typical design back in those days was to have a passage nearby the water outlet where excess water flow found it’s way to the exhaust flow in the exhaust housing. Maybe that passage is blocked with carbon build-up. In any case, having the upper exhaust housing and shift handle getting hot probably means that passage is blocked, for whatever reason. I suspect that eventually the upper part of the exhaust housing is going to start to discolor… get cooked. You might be heating up the area around the pump as well, if it’s not being bathed in water flow. I’d pull the powerhead again and have another look. It’ll be great fun! … good excuse for consuming a couple more beers!