Ok eventually we get time to look further into the prop issue. It's looking like the donut. My neighbour is going to do it with me when we get a minute between us. He too works silly hours.
We now have a lack of power issue. It chugs on tickover and there is no power until the turbo kicks in and then it isn't great compared to what it should perform like. It's a 170bhp diesel so should pull well.
I was advised to change the fuel filter which I have done this afternoon as it could well be blocked. So I've done that and the air filter and it looked liked they hadn't been changed in years but no change to the performance.
I decided to take the top engine cover off to have a look and found a puddle around one of the injectors.
I ran the car to see if the flexi pipe above had a split but nothing came out so starting pulling the electrical connectors off one at a time to see if there was any change in the running. Pulled no3 off which is the one with the puddle and nothing happened.
. So it's now got to go in and have the injector repaired. I'm sooooooo happy.