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[leitoo 0]

Hello everyone... My 205 seems to be having some bad luck lately... (or my right foot is getting a little too heavy )

In the past few days I've been encountering oil in my expansion bottle.... The car runs sweet, pulls strongly and doesn't misfire, no white smoke, no pressure in the cooling system, compression test is ok, car is not using water or overheating, etc..

Could this still be a blown head gasket? Meaning it has gone in the oil to water ways? Is this really normal to see or to happen?

Last night I removed the cap from the radiator and also found oil stuck in the inside of it...

The other thing that comes to mind, which happened to one of my mates is the water/oil heat exchanger... My mate's one went and it sent oil into the cooling system... Could this be the case? Is there a definite way to know if it's either this or are there any classic signs of the HG going in this way (oil to water?)

Any comments highly appreciated

[Mikey S 29 1 Cars]

usually when a headgasket goes between a water jacket and an oilway you get them mixing both ways, i.e water in oil and oil in water.

 

try isolating the oil cooler from the water sysyem by disconnecting the coolant hoses and joining them together. flush the cooling system to remove the old oil then run the car for a couple of days.

 

if it stays clean the oil cooler is at fault.

 

hope that helps

[brianthemagical 1]

would a sniff test give a good diagnosis? i think it test for carbon monoxide, which wouldn't be there if it wasn't a hg

[leitoo 0]

try isolating the oil cooler from the water sysyem by disconnecting the coolant hoses and joining them together. flush the cooling system to remove the old oil then run the car for a couple of days.

 

if it stays clean the oil cooler is at fault.

 

This is a great idea pugger, I will try it right away, I think it will give definite results.

 

would a sniff test give a good diagnosis? i think it test for carbon monoxide, which wouldn't be there if it wasn't a hg

 

I think it could give out signs of HG going between piston and water way or signs of piston ring wear but not if the problem is between water way and oil way. I'm I right to say this?

 

Thank you both for your comments

[Rob_the_Sparky 9]

Oil to water HG failures are quite unusual, they usually fail water to cylinder rather than water to oil. My vote is on oil cooler if you have the later water/oil cooler.

 

Rob

[leitoo 0]

Just a little update...

I have bypassed the water pipes to the water/oil heat exchanger and for now (been working like this for over a week) no signs of oil in water any more!

This weekend I will replace the distilled water it's now running on for coolant fluid and see how it all goes.

Thanks guys for all your comments and ideas