Right, the exhaust is on now. It's blowing slightly, but it's on. It sounds immense! Such a lovely noise, it's maybe a bit louder than I would like, but I'll run with it for now.
Firstly, cooling system. I need to get it bled properly. Problem is, I don't have any bleed screws or anything so I'll have to bleed it through the expansion tank, something I'm not massively familiar with so I need to figure that out.
I'm worried (I like to worry) about the temperature of the coolant. The gauge is saying it's fine, but it's a 38 year old gauge and frankly I'm not sure I trust it. I need an aftermarket temperature gauge really, something I can fit and it can give me a readout in the car, and I'll just tuck the new gauge away somewhere nice and hidden. I'm open to suggestions for this though.
Next up, with the throttle open and the revs high, there's a fair bit of blue and black smoke, although mainly blue. So it's burning oil. I did a compression test and got the following:
Cyl 1: 148
Cyl 2: 142
Cyl 3: 152
Cyl 4: 155
Cyl 5: 148
Cyl 6: 162
So they seem "okay". That was on a warm engine, with the throttle closed, and all spark plugs removed. I've not done a wet test to compare, so I can't completely eliminate the piston rings. Might well be valve stem seals, it also might just be because it's not been used in a long time, and it just kicking old oil out, I don't know at the moment.
It's very close to being driveable though, when it is, I'll be taking it to an exhuast shop as it 100% needs something better making than my attempt.