I know that the EGR tube hookup is different. I'm really in a time crunch and have the 93 version. Is there any way to make it work? From all I've read EGR is beneficial esp. on a stock setup, so I'm trying not to delete it. The only salvage yard in the area that has one screwed me today. Since I happened to be near the yard, bossman gave me the ok to pick up the part while I was on company time. (This sucks because as anyone knows, if your boss does you a favor, he'll want one in return -and the return favor usually winds up being a real PITA). The yard was only 7 min. away. Once I got there Old Goober sends Young Goober out to "get the manifold off the 94 engine thats covered with cardboard" (say this with thick southern accent for maximum effect) I can see Young Goober wandering around a pile of engines with an inbread/lost look and I'm guessing this can't be good. 20 minutes later he returns claiming that the engine only has the DRIVER side manifold. Old Goober (who has joked aloud twice to all customers waiting for parts, about charging $10.00 extra for all purchases- for the new window unit air conditioner some other goobers are currently installing in the office) makes a call and informs me they can get the proper manifold but the price has mysteriously increased to $75.00. Now I may be cheap but I ain't stupid! Anyway sorry for the rant. If anyone is near Myrtle Beach and wants to sell me the correct one, if there's no way to make the 93 version work, I'd be eternally grateful. Thanks to the two other members who've offered help already. So far I'm tryin' to go local because of my time constraint but if all else fails I'll keep you in mind. P.S. the manifold is cracked between cyl. 5&7. I know cast iron is tough/special to weld but would you trust JB weld or something like it in this application?

 

Exactly what are you looking for? You appear from your screen name to have a 93, and you say you have a "93 version" - do you mean a 93 version of the EGR/AIR piping, or a 93 version of an exhaust manifold? If you have a 93Z, why do you need a 94 manifold?

Why not add a "signature" with basic info about your car - year, model, engine, trans and any major mods? That eliminates some of the confusion.

 

Seems like "the Goobers" had a manifold for you. You said they had the driver's side and yours is cracked between #5 and #7 (which would be the dirver's side). So what's the problem? The driver's side is the same on 93-94s but the passenger side is not. It might be a little embarrassing when you have to go back.

 

Yeah, I guess I should have just said on my post that the manifold was cracked between the last two ports closest to the firewall on the passenger side which would actually be cylinders 6&8. I'm driving the 94 and also have a 93 that's currently parked, which I could take the manifold off of. I have already removed the broken one from the 94. Anyway I figured you guys would get the gist. Is there anyway to use the 93 manifold on the 94 and still retain the EGR function?

 

I don't think so. The 93 manifold does not have the port for the EGR in the same place. It uses a combined pipe system for EGR and AIR.

 

Thanks to all here for the help again in advance. I'm in the presence of much 4th gen. genius every time I post. I was just searching through the exhaust sec.(I realized after I originally posted that the exhaust sec. might have been a more correct place for this entire thread) and I happened to see something that referred to a diagram at shoebox's website. After checking it out I came back and noticed that shoebox had apparently been referring to the same diagram at the very near the same time I was and had posted me regarding it. Help me out shoebox- at first I came to the same conclusion you did about the EGR tube placement. Having seen the actual EGR system on the car it appeared that something in the diagram didn't jive, even though the info on the page said EGR and AIR components in the heading. I then went to your website directly, instead of just looking at picture provided by the link in the post I was looking at. Directly above the listing for the diagram I referenced through the link, there was another drawing, #28 which actually shows the real EGR routing. It looks to me like the 93 EGR tube still mounts to the same place on the intake that the 94-95 model does. The only difference is the location of the manifold side. On the 93 it enters the manifold lower, near the Y pipe flange. If that's the case I will be able to use the manifold- as long as I also take the EGR tube. I'll have to check the intake again. I think the other diagram is actually drawn wrong. I don't believe the AIR system ever really connects to the intake as shown. Let me know what you come up with. Thanks again.

 

The diagram is correct.

On the 93, the AIR supply line for the passenger side and the EGR riser tube from #8 join together, and both end up connected to the back of the intake manifold. When the AIR pump is running, the EGR system is not, so no air flows to the manifold. The air flows to #8, where it is used to burn excess fuel from the rich cold-start mixture. When the AIR pump shuts off, the tube is now used to flow exhaust gas from #8 to the back of the intake. The check valve in the AIR line prevents the exhaust gas from flowing backwards to the AIR pump. In effect, the tube connected to #8 serves two different purposes, and flows in different directions, depending on whether the AIR or EGR system is working.

 

the 93 IS as pictured in #29 on shoebox's site. I don't know where I got twisted around. Sometime back I swapped the original motor that was in the 93 for an lt1 out of a 93 vette. Maybe I'm remembering parts from the vette setup. Anywho... If I use the passenger manifold off the 93 and take the metal pipe which connects to the intake/air/egr and just plug the side that goes to the air, leaving a connection only between the exhaust manifold and intake, will this let my egr function normally?

 

It should.

 

I think you owe the Goobers an apology.

 

i got all confused in all the post but if you do need a 94 manifold i can ship mine to you for 15 bucks plus shipping for both or 10 plus shipping for one side. off a 94z

 

After much knuckle scarring finally got the manifold swapped. Running better but the dreaded hesitation below 2k is better but still hanging on. Guess soon it's time to save for an AKM cable and download some scanning software.

 

o2 sensors? fuel filter? opti? plugs? i would check o2s first cause an exhaust leak will tear up o2s fast.