grandpajohnson
Member
I have working on a WD that has set for a few years in a shed, nice and dry. I got it running very easily. I changed the oil, old but all oil, put Marvel Mircale oil in with the regular oil when I put the oil in before starting. Good oil pressure. I ran it some and could see that both end ports on the manifold where leaking and the manifold was not in too good of shape, So I got a new one and put it on, no leaks and it fit great. While I had the old manifold on I noticed that cylinder 4 was not firing, I replace the dist cap,rotor and points, I have good spark to that cylinder when I take the plug out and put it against the block while running. I rebuilt the carb, put all new hoses on and drained all the coolant and that was very clean. I flushed it out and put water in for a few days and ran it while I was waiting for the new manifold. Drained it again, nice and clear water came out. Nothing in the oil, very very clean. But after the new manifold it did not fire on cylinder 4 either. One thing I did notice as soon as I used the new manifold all but the right side discolored some when it was run for a while. That tells me that I have no or very little exhaust on the 4 cylinder. My thoughts are to pull the valve cover and check to see if the valves are working properly. Any other thoughts on what to do?