I went to an 18 month old Grant vortex combi 26 which was the worst i've ever seen to the point that the baffles had an inch of soot on top of them and when I pulled the swirl baffles out they were solid with soot. I cleaned it all out so it was sparkly clean changed nozzle etc etc
I was expecting he oil pump to be too high pressure but it was at 8 bar and the air setting was about 5.5 which I wouldnt of thought would be too far out. but it was smoking a treat so opened the air up until it was fairly clean then put my analyser in and I cant get the co2 below 12% with the oil pressure on 8 and I had to wind the air as far as I could.
In the end I dropped the oil presssure to 6.5 bar and I managed to get the co2 down to 11.4%. What I cant work out is why with the air fully open will it not drop below 12% is it because
A Its still burning off some muck around the heat exchanger. (this is my thought)
B They are not using Kerosene? and maybe using gas oil or even red diesel or something else?
Im going back early next week to check it again as it was so hoping it burns off all the muck and I can just reset it all back up and away it goes>
I was expecting he oil pump to be too high pressure but it was at 8 bar and the air setting was about 5.5 which I wouldnt of thought would be too far out. but it was smoking a treat so opened the air up until it was fairly clean then put my analyser in and I cant get the co2 below 12% with the oil pressure on 8 and I had to wind the air as far as I could.
In the end I dropped the oil presssure to 6.5 bar and I managed to get the co2 down to 11.4%. What I cant work out is why with the air fully open will it not drop below 12% is it because
A Its still burning off some muck around the heat exchanger. (this is my thought)
B They are not using Kerosene? and maybe using gas oil or even red diesel or something else?
Im going back early next week to check it again as it was so hoping it burns off all the muck and I can just reset it all back up and away it goes>