Oil leak

[asterix]

The other half took the Astra, 2.2, to Holdens for a free inspection they were running.
We've got a minor oil leak down the front of the engine. Their assesment was it was comming from the inlet manifold
and would be $500 to fix.
I've done a bit of research and can't find anything about oil leaks from the inlet manifold.
The inlet manifold is sealed by four rings so I can't see how you would get a leak here.

Has any one had or know of a leak from the inlet manifold?

Apart from the rocker cover is there any thing else in that area I should be looking at?

[guy 27]

Won't be inlet manifold.
Could be oil pressure switch if it's the front of the block.

[gravy258]

the free inspection is to get them work.
Some oil leaks are years of build up. Try washing it off with carby cleaner or engine degreaser and let it develop.