I would like to clean up the engine itself with less clutter like the disconnecting the crankcase plumbing from one side of the intake manifold to the oil filler(front of engine). Then channle out the other side of the intake into the air cleaner.


Has anyone attempted this? Will it effect performance?

I got rid of all that junk years ago. I just stripped it out and put in a piece of hose from the breather, it is on the oil filler neck if I remember correctly, to the intake manifold. I couldn’t see that the “barometric depression sensor” or what ever it is called was doing a thing and it was always in the way. I plugged off the drivers side manifold with a short hose and a wooden plug. Be sure to use hose clamps. I took the old molded hose connector from the manifold in to the auto parts store and told the guy I wanted something that approximated this. He went to the back and got a preformed part that was a close match. I put it all together with clamps and it has been there ever since.

About performance, I don’t do performance but it made no difference in the running of my engine. You don’t need to worry about mixture like on a gas engine; all you are doing is getting air into the cylinders.

So what do you do with the blow by? Edited by: DSL JEEP

Well perhaps I wasn’t clear on that. I ran a straight hose from the filler neck to the passenger side connection on the intake manifold. This is the place where it was originally hooked up; I just got rid of all the junk. I got a piece of preformed radiator hose to make the bend so the hose would not kink and choke off the flow. On the driver’s side, I plugged it off.

is that what that can thing is called a barometic what? Hose comes out of oil filler and into the can then into the manifold? Come on now what magic happens in this can? Does it somehow stop all that blowby rushing out the oil fill tube?

I never did figure out what he barometric depression sensor was doing. It just appeared to be straight through to me. At any rate, mine is long gone and so is the exhaust gas recalculation valve. Actually the valve is still in place but it is disconnected.