Hi I went through a similar process and it cost hundreds but it was the dreaded head gasket after all, even though the gas test kept proving negative! The main cause of the initial over heating was the viscous fan unit which looked fine and seemed to be turning ok but was gone with no real...

Hi guys and thanks for your thoughts, I also am skeptical about these "cures" but what did I have to lose? Yes it has solved the problem for now and it is just nice to be able to drive this one again (i own a DSE as well!). Lets see how long it lasts I will keep you posted, thanks for all your...

Just an update, tried everything and still she kept throwing coolant out of the cap. I took the plunge and bought that additive from ebay and it has worked. The car is back to "normal".. which means that I am now waiting for the next problem!!!! but seriously that silver seal stuff worked a...

Thanks Irishrover, I did notice that since I have been running it as a "basic" engine only system it has not "lost" any fluid either. Yes I agree with you about the LPG being a suspect in this case as it is higher or at least as high as the highest water hoses and tank but I hope that the new...

Hi, thank you for your replies so far. I had already checked the bleed off pipe from rad to expansion tank and at the moment I have the LPG and heater pipes disconnected. I am only going short distances and the engine only just reaches normal operating temp, but the top hose is getting fairly...

Hi, I have a small problem that is really cheesing me orf!! A few weeks ago a hose came off a tee joint for the cooling system/LPG. Water went everywhere and she overheated briefly. I managed to stop within yards and had the AA out. We refitted and then refilled but she airlocked up and the AA...

Hi I also have the IMPCO setup in my 4.0se. Yours can't just be running on gas as it would need to start on petrol until the water temp in the car was warm enough for the gas work properly in the system,, so it seems that some petrol at least is getting through for initial warming up stage. The...