well, I ground the heater box mounting surface smooth, put the heaterbox back on carefully today, making sure the rings were sealed just right... and fired it up.....
And I can now say it leaks exhaust just as much as it did before...popping and all.. SO...
Oh, and I also noticed while the heater box was off that the exhaust valve in the drivers side front cylinder (towards the front the bus) was covered in a sort of white build u of heavy crust looking stuff.... the other cylinder next to it was normal looking. I am wondering if I have a cracked jug or something, but it would be nice to have someone else take a look at it while running to confirm this.
I am thinking that with this issue and as much oil as the motor leak, that i is probably just best to pull the motor and rebuild it. but thats just my opinion... :lol: