Thanks Bruce ,
I think I can just about make out a white hot tip inside of the tube .
Ok I decided its been so long since I had seen my nozzle that I have just opened up the hatch to take a look in side , rusted in bolts on the hatch cover took some moving but got there in the end , i don't think I will leave it so long next time, or maybe i will cover it from the rain .
I think my inspection timing was more or less perfect one more week longer and I don't think there would be much left to inspect !
Here are the photo's starting with how it would have looked before I installed it , I am just going to replace it with another of the same type .
And from that to this .... 3 months later
All in all I am pretty pleased really considering the run times I have given it since installing it 3 months ago .