We decided to stay put for the weekend and went for a nice meal over at Grove Lock pub.
We run the engine in the morning and Del checked the coolant before he did and again noticed oil in the water.
This could be one of three things...
A/ The head gasket
B/ The Gearbox Oil Cooler
C/ A Core plug
For a while now Derwent6 has been loosing water when it was a freezing night and we had to top up the coolant before we could set off. It was very difficult to see where it was coming from due to the fact the engine covers are awkward to remove. Del had thought it was a hose (which is a return from the clarifier) so changed it to make sure it wasn't leaking.. We don't get the leak very often so it has been very annoying.
This is different though, oil in the water is not what you want, and the engine appears to be running ok and we have no smoke from the exhaust.. Del then asked Beta for some advice and some good advice was given back
They feel it might be the gearbox oil cooler which might have an O Ring damaged, and that's where the leak, when its cold, appears to comes from.. They also feel it shouldn't be a head gasket as the engine has to have been overheated to normally damage it.
So here we are trying to sort this out, more expense, more work! We just need to know can the oil cooler O ring make oil go into the water?.. Watch this space!!