I recently bought a 1993 F250 with a 7.3L with a factory turbo. When i bought it, it started really rough, but started. We (the seller and I) both thought the glowplugs were the culprit. so, I replaced the harness, the plugs, and the controller. That didnt work. So then i thought maybe the fuel system was getting air into it through faulty seals, so i bought and installed all new return lines and seals, then bled the lines. that didnt work either. I also changed the oil and it has fresh fuel in it. I have also replaced the batterys and all the cables. Before i bought it, the previous owner rigged up an ether injection system to start it. It cranks and cranks and cranks. itll puff smoke all day long. And when it does start, it runs great, doesnt sputter or anything. Just wont start. Any help is very appreciated. I think maybe it might have something to do with the injection pump. thistruck was jerry rigged to all hell. so i dont know whats messed with and what is supposed to be. The injection pump looks like a few things are unhooked, one looks like a spring, the other looks like two vaccum tubes. I will attach pictures.Thanks, Zac

 

ok .. the vaccum lines are for Cruize control .....

DO NOT USE ETHER IN THESE ENGINES >>>>>>>

Please for your own sake watch the entire viedo ......... then start pullin your glow plugs and check each one ....... make sure yo use MOTOCRAFT glow plugs ..... and your most likley about due for a lift pump ( pass side front of block ) probably loosing pressure and bleeding back to tank ... try a check valve in there ( Brass Only !! ) ... keep us posted

 

Really appreciate it. I made sure to use motocraft when i changed them out, and I never used ether, it was the owner before me. i tore out the ether injector the first day i had it home. the next thing imgoing to do is definetly switch out the lift pump. Thanks, will keep you posted.

 

ok ... PM me if you need anything

 

will do. appreciate all the help.

 

 

Ok, so the fuel lift pump was not the problem. I had it tested and its definately way low on compression. so heres my new question, what, in your opinion would be the best option.
1. rebuilding the engine, What exactly would i need?
2. drop in a remanufactured engine, I found i can get one for around 2000$
Thanks, Zac
also keep in mind that this motor has 300000 miles

 

300K is low ...... I would pull engine out put on a stand ... pull it apart ..... take to a machine shop and have it decked , mag'd , and then honed, the rest is on you and will be by far cheeper .... go to Northernautoparts.com and they have a full build kit for arounf 850$ ish ..... all you need is there.... also have the machine shop install new frost plugs ... cheep insurance ... they are a special fit .. dont try your self...

 

Also check the plugin on driver side inner fender for the glow plugs,they do melt it was my problem with my 92 four door bronco