I have a 84 xtra cab witha 22r motor (I think it might be a differnt year) I am turning this into a rig to wheel around. the previous owner did some hillbilly work to it and half the vaccum lines are cut. I was wondering what lines need to be there and which ones can I plug. (I am removing all emmissions from the vehicle)

I have the chiltons manual and have looked extensivly on the net, but all the diagrams I see are slightly different than my engine. the diagrams I find on the net have 4 hose lines (numbered 1-4 in the picture) where as my truck has room for 5 hoses in the same spot. I am wondering if anyone has a diagram of where the lines should be on MY motor, or at least be able to tell me which ones I can remove and plug.



thanks a ton.

Kyle,

 

bump.

Kyle,

 

We're going through this right now on a trail only truck (temporarily carbed)

It depends a little on how important drivability is to you.
some of the systems are not about emissions.

Example: Up here in Denver, the HAC (High altitude compensation) system is always active, so we left the system, but killed the controls since it will be always active. We T'd both vac. advance chambers (Don't let people tell you that is the retard diaphram. Put you timing light on and test it if you don't believe me)
We also left the HAC air bleed system with the intake for the system going to filtered air.

Next, I left all the choke pull off system intact. We'll also leave the idle step-up for the A/C connected. (right now the AC isn't working so no worries.)

We plugged the big manifold vac. fitting. We plated the Air Suction (A/S) system intakes to the exhaust manifold. We plated the EGR injection system and threw that stuff away. We plated the exhaust feed for the EGR.
We ditched both of the the evap canisters and will vent the tank to the air filter or atmosphere.

so the absolute minimum is: Vac to the distributor. The rest is emmisions and driveability.

 

were did you get that pic? can i get it bigger