I have a 1984 bronco with a 302 that has been moded slightly it has preformact intact pistons and carb. my question is the air pump for the emisions has bit the dust and the crossover pipe between the two heads is broken off. can i take that pipe off and close the ports without any serious problems . I do not have to worry about emisions in my state. on the same topic my egr valve is messed up and the ports in the heads are fowled up should i replace the vavle and clean the ports out? thanks

 

I have a 1984 bronco with a 302 moded engine and the rear end is a 8.8 with i think 3.83 gear ratio or close to that my question is how do i get the C clip out to remove the rear axile to change bearings. the book i have shows it just pulling out but there seems to be some sorta S shaped clip/sping between the axals in the differectal. any ideas . also can i purchase just some of the gears in the rear end or do i have buy a whole new rear end because the metal plats on the two gears in the differecntal are cracked .

 

As far back as 84, if you don't need the emissions paraphenalia to pass inspection, It won't bother the system too much to remove the smog pump and plumbing for it. Just make certain you cap the open ends of the plumbing that run into the exhaust to avoid hot exhaust backing up into the engine bay. While I don't normally condone the removal of emissions equipment, in a truck that old, the emissions equipement was not nearly as integrated into the igniton and engine control systems as it was in later years. Therefore removal, while not recommended, can be done without near as many ill effects to the engine's performance and general operation. The EGR valve is part of the emissions control system and is the one part that most often has the worst effect on engine operation if it fails. Since it opens and closes and in effet changes the amount of air/exhaust recirulation gases coming into the carb, getting carb settings correct with a non-functioning EGR valve can lead to idle and performance issues.

As for the axle removal, I am unaware of any clip in the 8.8. Doesn't mean there isn't one. I just have never encountered one. As with most axle assemblies like the 8.8 the bearings are pressed on and the bearing retainer at the outboard end of the housing should be what holde the axles into the housing. Remove the retaining plate and the axle should pull out with some tapping or a slide
-hammer. If I am missing something, the fine folks here will certainly make sure I haven't lead you astray.

 

When I rebuilt my 8.8 it was not this style. There was no retainer plate and the bearings were not pressed on to the shaft but driven into the axle tube.

 

"some sorta S shaped clip/sping between the axals in the differectal. any ideas"

It is limited slip. My observation when removing the cover confirmed the tag and door sticker. However, I have never disassembled one.

 

i will see if any of the helps thanks for hte time. I am now going to rebuild the entire engine i will go into deatal l8er about bueacause i will have more questions i am shure to have. this is a great group of people that have helped me out in the past with problems that no one eles would even bother to look at .

 

Unlike greystreak, I absolutely condone removing defunt, garbage emissions equiptment which is what the early 80's and prior years is all about. Garbage. But do so at your own risk and know the law before you decide whether or not to break it...

You can plug the heads by cutting and sealing the pipes which will likely rot out or by screwing in a plug where the pipe enters the head. I replaced the heads on mine as the smog heads wouldn't properly feed a decent 289 let alone a wheezer. But anyway I've been told a few times that the hole in the head accepts the same size and thread as the sparkplug.

theres a lot of options available but it is confusing work if you don't know the smog system. I also did away with the computer and ignition system at the same time and went hei..simplification...

 

Roger Dowty is right. In other posts I mention that in MA, vehicles after 1980 must have a cat to pass the viual check and in my experience, regardless of the year, if the vehicle was made with a smog pump, it better be under the hood when the inspection person looks in there. In MA pre-1980 it just has to be there, not connected or anything.
These are in MA but emissions regs are federal, so check it out before yanking, else you'd have to put it all back.