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1

Omega General Help / Re: Water and Oil mixing

« on: 29 November 2009, 15:50:27 »

Thanks for all of the advice it has been very useful.

I did try and flush the radiator when i changed the fluids but the flush i used didnt see to flush much of the oil deposits (mayo) at all, so i may try this again with the "Forte coolant flush".

I am doing short journeys at the moment and i suppose the current bad weather would make the mayo build up the filler cap worse than usual.

Thanks again fo all of the advice, i will try flushing the coolant system again before changing any gaskets.

2

Omega General Help / Re: Water and Oil mixing

« on: 29 November 2009, 11:43:03 »

Sorry, my mistake. I forgot to say that i have already changed the oil cooler about a month ago when i changed the fluids.

I am seeing oil in the expansion tank and also mayo in the oil filler cap, but not yet on the dip stick.

3

Omega General Help / Water and Oil mixing

« on: 29 November 2009, 11:15:04 »

I have an Omega 2.5l V6 and i noticed a few months ago that my oil and water was mixing. Following this advice on the forum i changed the oil and flushed and replaced all fluids. This seemed to work when i checked after a week. But now about a month on i checked again and my oil and water are still mixing.

I have also noticed a slight drop in oil, but the water level has not changed. The car still runs fine other than the slight flicker on the oil light on start up and occasional lumpy tickover.

Has anybody else had a simular problem like this? I dont know if it is still a problem with my oil cooler or my head gasket.

I have been thinking that the oil cooler didnt affect anything and the change was only noticed as i changed the fluids and it has been gradually changing back. But as i have read the head gaskets are rare to go, so wanted a second opinion before i try to perform this mamoth task.

Vauxhall Omega 2001, 120,000miles, 2.5l V6 Manual.

P.S. Its changing the head gasket as hard as the oil cooler?