Hi Everyone,

My KR Verada has developed the dreaded milkly oil syndrome.
Just wondering would it be the head gasket or the heads themselves?
The car had been sitting for 6-7 months. Prior to me buying it had blown a water pump (guy said it never overheated and i believe this to a certain extent because it runs fine and has plenty of power), got that replaced and now the stem seals and head gaskets need doing :/
Its a 6G72 with 199xxx on the clock.

Cheers
Chris

Your not going to know until the heads come off. Send them off to get crack tested amongst getting them machined before you put them back on.

Rebuilt heads FYI are about $750 exchange. Good option if you don't wish to wait and want fresh heads. I did this many moons ago on the TR

Get the cooling system pressure tested, its the only way to find out if water is leaking out internally.

The head gaskets on the 3.0 L are solid things, its not likely to be a failure of one of the gaskets, rather, you may have a cracked head or corrosion. Don't know until you take them off.

I took mine off (TS V6 at 240,000 km) and had new valves, new stem seals and hydraulic lifters put in after one valve burnt. Heads were pressure tested and didn't need welding. Gasket set came from rockauto.com. All up about $1,200.

Head gaskets on the 12 valve motors are not solid metal ones like the third gens, they are graphite comp gaskets. These do blow, have done many of these in the past including on my las wagon which blew with no warning, turned it into a steam engine

To test, you can pressurise each cyl and see if there is a rise in coolant level or bubbles, this will show you which pot is giving you issues and then can go from there to decide if you think a fix is worth it

Thanks for the replies, There is little to no pressure in the radiator when its at operating temp.

Would condensation/someone putting water in the oil through the cap cause this?
Although im doubtful becuase when i pulled the exhaust off it was full of water (explains the need to top up every now and then)

Either way the heads need to come off.. just decide wheather to buy s/h ones or get yours machined. S/h may have problem, maby not. But work out what you WANT to do..