I was poking around and saw some mentions, here and there, about not having a return fuel line causing overheating.
And also that by not having one, the added pressure in the fuel system could "push the needle valve off the seat and flood the engine with fuel."
Since the Jeep seemed fine out of the gate on my last two runs, and didn't present an issue until it got hot, I got to thinking.
I don't have a return line from my fuel filter.
Hope the tank end is capped.
But my filter is a simple inlet/ outlet.
You got a few issues going on. Stay focused and do not let yourself get side tracked.
Your carb is too rich. Jet it down and drive it. If it effects the idle mixture. Then readjust it. Consider it a bonus.
You got excessive oil coming out your PCV. That's more difficult to handle. Having a stronger PCV draw by relocating it may pull more oil. So make a PCV condenser.
Your cranking pressure is 170psi and you didn't even hold the throttle open. I'm thinking it should be 130-150. (know one mentioned that theirs is as high as yours) which to me is carbon and not 10:1 pistons.
You have detonation just running with the mechanical advance. (Vacuum advance plugged) If your flyweights are not sticking and you can't grab the rotor shaft and move it around to prove the distributor needs replaced.....its back to excessive carbon buildup.
I've already put a small motorcycle carb jet into a rubber tube( as a restrictor) and drove my Saturn around dipping the other end in a jug of water (or -20 deg windshield washer fluid) every time I wasn't at a stop light. I actually installed water injection ( using a 50cc per min at 150psi nozzle) on my satty to keep the carbon gone, since I cleaned it all out while I swapped heads. I have a limit switch that activated it just off idle, (3% Throttle position opening), and rely on manifold vacuum to pull it into the engine.
Regarding jetting, I'll have to read back and see what size jets we settled on and get some on order.
I found this separator online. It looks to be a pretty good unit for the price. http://www.velocityshop.com/product/...ilver_763.html
Good size, sight tube, easily emptied, looks good. One thing I am confused about is that it makes no mention of a filter. And the inlet/outlet lines are right next to each other (which they are on most units), so wouldn't the gasses/ oil just transfer from one line to the other in the space above the canister?
Short of pulling the head, which I would like to avoid, I dont know what more I can do to remove any carbon. I've already run a full gallon of distilled water through the system. Granted that was not under load, and maybe that makes a difference. You mentioned a fuel additive. Recommendation?
I haven't torn into the distributor yet, other than to pull the cap to see if vacuum produced any movement inside, which it did. I will have to pull it apart and take a look at the weights and check the shaft for play.
How much play are we talking about, here?
you would have to look at the internal design but usually there are 'things for the oil to catch on and let the air pass.
It could be anything like a perforated steel plate to something like steel wool. it will catch the oil and and let the air go on by.
I see a trend here,
years of blow by, building up an impressive layer of carbon on the pistons leading to pre-ignition. Higher pressures in cylinder = more blow-by = more carbon buildup = higher pressures...