Home › Forum › Ask A Member › 1956 Johnson 10HO QD 19 exhaust housing temp › Re: 1956 Johnson 10HO QD 19 exhaust housing temp
Well, this is a strange case indeed…You mention doing a rebuild, was the housing discolored like that prior to the rebuild, or did this condition occur afterwards…
This is strange only because the area that is getting so hot is not an area that is really exposed to hot exhaust, all the hot exhaust is on the other side of that exhaust housing rib that divides those chambers. Yes, the exhaust can back up into the forward area, but only after it hits the aft compartment…So, you would think that the aft compartment that is exposed to the hot exhaust first would be the area that might heat up excessively…
I’m looking at your latest picture and see something I would question…That triangular exhaust compartment on the bottom of your picture seems to be opening into the forward area that is getting so hot….I’m wondering if this is some sort of casting flaw….I will have to look at one of my FD exhaust housings to see if it looks the same…
One final question, is the exhaust housing paint burnt on both sides of the exhaust housing, or just on the side shown in your picture??