|02-09-2011 05:14 AM|
|02-08-2011 03:16 PM|
|89JEEPYJ||ahhh screw emitions there is always someone that you can pay off. posi lock is a simple job, alen key set needle nose plyers, screw driver, and some diff fluid and your good to go.|
|02-08-2011 03:13 PM|
|Undead-89||The auto locking hubs use the Vacuum system to engage.|
|02-08-2011 03:12 PM|
|Undead-89||We stopped emissions testing years ago and now they are restarting again. Means i need to keep all 14 of those damn vacuum hoses intact.|
|02-08-2011 12:00 PM|
|02-07-2011 05:42 PM|
|02-07-2011 02:31 PM|
|Draco||Does the 4wd vacuum run off the engine?|
|02-07-2011 02:57 AM|
|02-06-2011 11:27 PM|
|Fweaky||Its not necessary to run a vacuum advance on your distributor but it can improve engine efficiency, throttle response, gas mileage, and help it run cooler at idle.|
|02-06-2011 10:07 PM|
|mameyj||87 yj 4.2. Only distributor advance, brake booster and Pcv valve.|
|02-06-2011 07:41 PM|
|n2trucking||Yes my 1990 with MC2100, nutter bypass runs with only vacum booster and distributor and pcv. Runs really good. Better than with all that shit vacum stuff and carter carb.|
|02-06-2011 01:01 PM|
|89JEEPYJ||i have the HEI kit, i just have no computer or anything since i ripped it all out. it has a slot for a vacuum advanced but the truck wont run with it on|
|02-06-2011 12:57 PM|
|Draco||Mine has vacuum adv but no vacuum booster....you must have the spring weights for advance|
|02-06-2011 12:54 PM|
|89JEEPYJ||the only neccasary vacuum i have on my truck is for the brake booster. The rest of it is just vent hoses for the motor and stuff like that. i dont have a vacuum advanced or anything like that|
|02-06-2011 12:48 PM|
|Draco||In KY we don't do "VET" testing anymore......or any emissions testing for that matter|
|02-06-2011 11:39 AM|
depend on how tight your state is when getting it inspected.
but the only vacuum lines i have on mine is for the timing vacuum advance, pcv.
that is all that is needed to make the motor run.
|02-06-2011 11:15 AM|
I just finished rebuilding my 90 4.2 and got it back in, now I'm left with the vacuum. Before I tore the engine out the vacuum was Lmost non existing so I'm just starting from scratch. My question is what is nessasary and what's not? vacuum advance is, I know but are there things not needed?