I'm wanting to stick a hose in one end and let the water go through the whole system before collecting it in a big pan. Basically I found a lot of goo in the expansion tank so I want to try and rinse that out of the system before using the Forte bio-degreaser. I'm told it could be two different types of coolant reacting and them I'm told it could be head gasket AND then I'm told it could be oil cooler/seals. So the plan is to flush the system and then change oil cooler seals. If that works brilliant if not then I go hunting for head gasket. By the way there is no water in oil.
So back to the question what pipes need removing so I can clean out whole system with water hose connected to coolant reservoir bottom pipe.
Thanks for any input.