I need a diagram of the block, birds eye view, need to see where oil and water passages are. I have a leak in the back of the head (oil) and want to see if there is a passage there... if not I am not sure where it is coming from (no its not the cam tower or that piece on the back of the cam tower).

Thank in advanced.

Ian

 

I can check when I get home this evening if you dont have one by then, but most pictures that are avail. in manuals etc. are not detailed enough to show the oil passages.

 

Well if any one has a picture of there block with out the head on, from a birds eye view, maybe that will help.

 

are these squares the oil passages?

 

Yup.

 

alright, well i guess the mls head gasket is leaking from the rear port there.. thanks i guess?

 

Here is more of a birds eye view...

 

Get the head off and straight-edge it. Warpage in the corner is not rare to find.

 

my head and block have been decked. it is leaking because we re-torqued the head with a mls gasket. Just wanted to make sure there was a oil passage there and not a crack in the head or some thing.

 

To further elaborate on the oil passages. The four square holes are non pressurized drain holes and the one round hole just in front of the rear most drain hole is the pressure feed for the head/cam tower.

 

Thanks, that is actually very helpful. I hope I am not starving the head and cam tower. Luckily the leak isn't very big, I am just afraid it has been leaking into the drainage then.