Join Date: Mar 2006
Location: South Dakota USA
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Re: Bad to worse, 2.8 V6 engine woes - 1986 Jeep C
vacuum hose nightmare!, the 86 Jeep 2.8 was one of the worst ever, good thing they went to FI the next year.
Many of those hoses had to do with closing and opening the warm air door in the air cleaner, some for EGR and choke.
The choke and vacuum advance are really the only ones you need to worry about, with missing components you could be in for quite hassle getting it all right, and finding a mechanic with the knowledge (memory) of that set up will not be easy. The jeep manual is not going to help you much, I can tell you that much.
Make sure you have vacuum at the choke break, as soon as the engine runs. Ported or direct manifold vacuum will work at the distributor advance. Do not run direct vacuum to the ERG valve, this will kill the engine at idle.
As far as the warm air door, and other devices, you can probably live without them