Well a few months back my engine started running rough like it was running on three cylinders and anytime i put a load on it I'd get a loud knocking like detonation.
I ran a compression test and the back two cylinders only pulled about 30 psi. so I ran a pressure test on each of those cylinders to see where the air was going and it was going smartly out intake valve of #3, or so I thought. I figured at that point I don't need to go any father I had a bad valve and pulled the head off. What a surprise when I got the head off and looked at the head gasket, it was blown between third and fourth cylinders. DUH
Both the head in the block miked out flat and don't appear to be damaged in the area where it was blown.
So, two questions.:
Can I just throw on a new head gasket and put it back together or should I have It milled?
In the process of removing the intake and exhaust manifolds I broke that pipe that goes from the end of the exhaust manifold around to the intake manifold at the fitting where it goes into the intake manifold. I'm guessing that's another part of the omissions Control, so can I just plug both ends and toss that or do I need to get a new part? I have installed a weber carburetor and have removed all the other emissions control stuff.
86 (85 1/2) 720 pickup Z24 engine.