Oil in radiator ?

[turbovich]

It will 100% be manifold gaskets

Is there anyway to check that the inlet manifold gasket, has failed ?.

 

[_R_J_K_]

It's an extremely common issue so the symptoms are well documented, the gaskets are pretty much a consumable. The only alternative is that it's something worse like a blown head gasket or a much bigger oiling system problem, but there would be other symptoms associated with those.

The only other way I could see of identifying it is doing a leakdown test or a cooling system pressure test.

 

[losh1971]

You could try and see if the LIM bolts are not tight. They can sometimes lose tension when the gaskets fail. But like mentioned just above it is extremely common.

 

[turbovich]

Yeah ok. Have retorqued plenum bolts, and yeah two were loose.
Is there an informative write up on "How to" ? Yes I have workshop manual on pdf, but pics are always crappy..
Thanks for assistance with issue .

 

[losh1971]

You could compression test to see if the head gaskets are leaking. But its pretty uncommon for Ecos to have head gaskets leak. If it was a Ford grey top well then head gasket problems are a no-brainer.

 

[Lex]

Try this link.
https://forums.justcommodores.com.a...-gasket-replacement-6hr-includes-pics.187621/

 

[krusing]

Is there anyway to check that the inlet manifold gasket, has failed ?.

Yes, having a milkshake in the radiator,
Well, a carrot milkshake I had in my radiator,
and flush it few times to get the gunk out, then put a radiator cleaner in one of the radiator flushes, and that should get most of it out.

 

[woteva]

Would it show up when doing a radiator pressure test ?

 

[Lex]

Would it show up when doing a radiator pressure test ?

It didn't on mine. When l had mine tested in 2013.
OP car, it possibly will?

 

[krusing]

Would it show up when doing a radiator pressure test ?

I bought a Pressure Tester Kit [full Kit], because I though, that there is a leak,
but mine held pressure to at least 14Lbs,
But alas, no it didn't indicate a leak.