Hey guys,
I have a '79 4x4 that one of the previous owners upgraded with a Weber carb. I just replaced the gas tank, and while I was at it, I started replacing a bunch of the old cracked vacuum lines under the hood.
Once I started, I realized that the lines that were run didn't match the shop manual diagram at all.
The line that should have gone from the check & relief valve to the oil pan was missing. (Open on the valve side.) Instead, a line went from the oil pan directly to the head cover.
According to the diagram, the line from the head cover should go to the manifold. The line from the manifold under the carb instead was about 5 inches of line that was open on the other end, just hanging down the side of the engine.
I put the lines back where the shop manual shows, but now it's really sluggish to start, or doesn't start at all.
My question: Have I just stumbled upon an unlucky new problem (maybe points?), or was the incorrect line routing actually correct?
What the manual has:
How it was routed: