Thread: TD5 Oil in o verflow tank

Here's hoping it is just the oil cooler. Sounds like it. Keep us informed mate.
Regards
Robbo

the cooler was definately corroded and failed a pressure test.
i have more and more a feeling that the common headgasket issues on TD5 are actually caused by the oil cooler letting go. the inverse to what most people report.
I have a low water alarm on my car and it went off a couple days ago, followed by about 10 seconds of watching the auxiliary temp guage go from 91-92-93-94-95 up to 98 where i eventually coasted off the road. had i not had the alarm, it would have cooked itself before the onboard guage even registered it was overheating, it was getting hot that fast.
my theory is the oil cooler lets go, pumps some steaming hot oil into the coolant which then expands out of the overflow. Then the thing cooks itself causing head gasket failure.

Hi. I am just about to do this as well to my 2003 Discovery TD5. I have received the aluminum tube bypass kit and all the gaskets from Murray out at Bellingen. I have had this grey sludge in the water reservoir tank and have just finished flushing all the water system of it and am ready to install the kit. I have not had any overheating and there is no water in the oil sump, I have determined the sludge is oil and apparently Discos oil coolers fail injecting oil into the cooling system making it look like a blown head gasket.

Did you have any major issues after the kit was installed and is there anything on the installation side I need to know before getting started. Murray told me I just need to pull away the turbo, remove the oil filter and the rest of the manifold attached to that side of the engine(not exhaust manifold but the one with the other oil centrifuge etc) but I'm having trouble as to where the aluminum tube will be installed and if there is any other parts not being reinstalled. Could you help with some info. Thanks in advance.