Hello all,
My 405 SRDT has oil in the coolant, but not coolant in the oil.
My immediate assumption is something to do with the head gasket or a cracked head.
But I also heard from a Pug mechanic that there is a water-to-oil heat exchanger near the oil filter that can leak, allowing oil into the coolant, but not vice versa as the oil pressure is higher than the pressure in the cooling system.
I see on this forum others have had this issue on a 307 HDi for example.
The car also has a few other issues which I'm happy to address if I can rule out the head / head gasket being an issue first.
I will also look at bypassing the oil cooler to see if the problem goes away.
So my main questions are:
Any thoughts / comments appreciated.
My 405 SRDT has oil in the coolant, but not coolant in the oil.
My immediate assumption is something to do with the head gasket or a cracked head.
But I also heard from a Pug mechanic that there is a water-to-oil heat exchanger near the oil filter that can leak, allowing oil into the coolant, but not vice versa as the oil pressure is higher than the pressure in the cooling system.
I see on this forum others have had this issue on a 307 HDi for example.
The car also has a few other issues which I'm happy to address if I can rule out the head / head gasket being an issue first.
I will also look at bypassing the oil cooler to see if the problem goes away.
So my main questions are:
- What are your thoughts on doing a compression test via the injector ports to prove the head / head gasket is ok?
- I assume these coolers are there for a reason and it isn't a great idea to bypass for any length of time, especially in an Australian summer? Has anyone successfully 'deleted' theirs with no long-term ill effects?
- Is a part like this easy to get hold of in Australia used or new?
- Could I bypass the factory water-to-oil heat exchanger and and put a generic oil-to-air oil cooler in instead?
Any thoughts / comments appreciated.