Back to this truck...I think I had my wife drag it back and forth in gear with a forklift while I tried to see if the hydraulic head plunger was plunging a while ago but never got beyond that.
Got a wild hair and needed a project to focus on instead of all the craziness going on late last week, so decided to make up some battery cables for it and borrow the batts from the dropside.
Fuel lift pump made noise but no fuel. Fuel smelled nasty. Upon further inspection later, there was just gunk stuck on the bottom of the tank.
It cranked over, but didn’t seem like plunger was plunging enough (3/16”) and the shutoff rod was very stiff. The lift pump was covered with a thick layer of nasty. I started it soaking thurs or Friday in carb chem dip. Filter cans were dirty but not full of solid gunk as I feared.
The shutoff cover had also been left off. Up to this point, I was tinkering on it out in the storage yard out back using the ‘70 for air, etc. I decided to go all in Saturday midday. Towed it up to the shop, soaked and pressure washed the engine. Still need to wash the dirt, trash, and rat turds out of the cab.
Pulled it around the back of the pressure washer next to the slab, dug a hole for the driver tire to get it lower and easier to reach. Parked the 4runner nearby with my tools in it, ran an air hose out.
Pulled the hydraulic head, button was still on after all, but plunger was stiff. Cleaned and lubed it all real good and reassembled. Pulled the drain plug out of the bottom of the IP, and cleaned it out.
After the lift pump had soaked for a couple days, I steam cleaned it. The outside looked a lot better, but the inside was still full of gunk. I ground the retainer nubs off, and removed the bottom plate. It was full! I cleaned it all out mechanically and then ran it in chem dip at gimpyrobb’s suggestion. I still need to go back and drill and tap for some screws to retain the bottom plate.
Sunday afternoon, I reinstalled the HH, but vertical slop in the plunger had me second guessing. The lift pump was working now, so I pulled one injector out and connected an injector line to it and the hydraulic head. I’ve been wanting to try firing an injector out of an engine for a long time anyway just to see, and I wanted to see if the hydraulic head was generating enough pressure to fire an injector. I turned the lift pump on, bled the system, and cranked it over. The holes in the hydraulic head that did not have lines in them spurted pretty well, a couple feet, but the injector did not fire a mist. I was bummed. It was time for a break anyway, so I went and sat down and posted on Facebook in the Deuce group. Got some advice from Jeepsinker to try oil instead of old fuel to see if the HH was worn. Once I went back outside, I decided to try it as it was one more time. Injector Mist! I guess the injector line and injector just needed to be filled with fuel by more cranking before it would pop.
After that, I quickly reinstalled the rest of the injector lines. Cranked for a few seconds and rumbled to life! Woohoo!
About half the gauges and the headlights work, but alt doesn’t charge, etc.. Air built up, horn works, dead brake pedal.
I ran it through the gears in low and trans feels good, which is great, I’ve had terrible trans luck. Smoked myself out in the process because the exhaust water tank heater valve was open, and the smoke sucked into the cab through the back window, haha. Window doesn’t close because scrappers smashed the cab when they removed the tank (and broke the taillights). I’m gonna have to learn deuce electrical.
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Also I agree with Rusty's post. Remove the IP, clean, inspect, and reinstall the IP.
