15-04-26, 06:50 PM
thanks Gnasher... I did have a split hose on a ride just before the frame swap and the engine got really hot... that's how i realised that I needed to change the hoses after 23 years...lol... and hence my fears for the head gasket... although I'm guessing that there would be a loss of pressure in the system if it had gone??? There is no oil in the coolant and no coolant in the oil... The cap and thermostat are also 23 years old.. so I'm changing them... (I've had the bike from new... so I know its history)... That's when I swapped the frame to the French registered one... filled the coolant... had no leaks on the bench when running the engine up... but on its first ride out... and I stopped a couple of times with no signs of anything wrong... all was going well until I got home and the coolant deposited itself on the garage floor through the expansion tank vent pipe... The engine was still running at this point... there shouldn't be any blockages I recently fitted a new radiator and when I took the cap off on the bench with the engine running there was plenty of flow coming from the carbs and from the block... I am waiting for the cap and thermostat to arrive from the UK... I'll put them on the bike... have a look at seeing if there are any air locks... and try again...lol