Thread: Engine experts........need your help again !

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take a long board with 80 git sick it paper on it for doing auto body work go long the intake gasket face of intake get it clean of oil first when clean your going to see a low spot there on the intake .you can check it with a machine shop strait edge as well . i would bet at one time in its life some one used a round rollock 3m wheel on the intake trying to clean it and screwed it up .but to have it that low you should run your hand over it and it should damn near break your wrist.... .i seen guys use them wheels all the time they will not make any thing flat. take your bottom gaskets off leave intake gaskets on set intake back on look to see if gap is even along the china wall of the block. i can tell you not much of this stuff is ever true or dead flat .i seen many blocks that were out of square .start milling them thinking how the hell did this ever hold a gasket ? but that is why they use gaskets in the first place . the print out looks good other then a weak spot on the one side sucking oil ??. like jerry said to could be alot of oil laying in the intake port as well bad valve seal no seal .worn guide or bad new guide.check that to .i am not there to see it.. but its looking to me that the intake is not sealing in that one spot .think of in take like a stopper in a bottle (cork) the bigger the opening the wider the cork . the intake being the cork . if it hits the bottom of the intake to block china walls there is only two way to fix this one if ports show still ok port match up you can trim bottom of intake so it can go down and the gasket sides of intake will seal .or if ports alginment to head to intake are way off thicker intake gaskets to help put intake port back up were it needs to be. i have allways did a dry run with out gaskets let intake sit down and shim it up with old gasket made up shims .or tape a small spot on a new gaskets so they will not move and check the fit .if you think the angle is way off you can side the intake to one side and check with feeler gauge you want the intake side of the heads clean with no gaskets . not having deck pins in the block to hold heads were they need to be can throw things off to