Finally figured it out ..(I think)

So..my new old 1961 cj5 is running pretty well now. The smoke has all but cleared up with the use of Bardahls additive. My father in law said it was blue smoke the other day, (I couldn't see it cause the tail end of the jeep was sticking out the garage door) What I see now is a little white smoke or steam (?) when I first start it. ( for about 30 seconds) then it also goes away.??

But it would barely pull it's self in first gear. Second gear and it wanted to die. So I've changed points, plugs, rotor, condenser, set the timing, (from TDC to 5 deg. before TDC) new selenoid, rebuilt starter (whle I had it off), new coil, new carburetor, New oil/filter, and additive, a bottle of heat, re-made the connections on the coil and distributor wires, and cleaned the PCV valve.

All these things made it idle real nice, but still died under a load untill today. Today when I changed the fuel pump, I bought one that didn't have the vacum holes at the bottom for the wipers because someone has already installed electric wiper motors. However, behind the old pump was a line hanging down from a T fitting off the PVC valve. I cleaned the PVC vavle and romoved that line and capped it at the T fitting. I guess TPO had removed the lines from the old wiper motors to the pump, and left the line from the PCV valve hanging there uncaped.

Now the jeep will actually accelerate in 2nd and 3rd gears on level ground. So...was it the new fuel pump or capping the vent line that fixed it? The clear bowl with the filter inside it that is installed in the fuel line between the pump and carb. now fills almost all the way up and before the pump change it only filled about one third of the way up, so the new pump is pumping more fuel I suppose.

(most of the things replaced needed it anyway, like the leaking carburetor, etc..) So I don't mind throwing parts at it like I did, but I wonder which change I made today actually fixed it. Vent line, or new fuel pump. Any thoughts?

I wanted to do one at a time, but it was tight cramped space and while I had the fuel pump off was definetly the time to do the PVC valve and line.

 

you may never know

 

Uncapped vacuum line will make it run really lean -too much O2 as apposed to too much fuel.

 

Un-cap the line you capped and see how it runs. Probably like cr@p. But at least you know if it was that or not.