Can anyone tell me what these are (pics)

[Sunshine]

...and what to do with them.

Well, I still have not gotten the wheel bearings off the CJ. Here's a photo of what I'm looking at:
http://albums.photopoint.com/j/View?u=1566898&a=11902491&p=47926493&Sequence=0

You can see the 5 holes where the set screws were, but I cannot get this "cap" thing to turn. I also cannot pry it off. Partly because there's no room to get anything behind it.
http://albums.photopoint.com/j/View?u=1566898&a=11902491&p=47926492&Sequence=0

I also can't get a gear puller on it:
http://albums.photopoint.com/j/View?u=1566898&a=11902491&p=47926491&Sequence=0

If anyone can tell me whether this thing is supposed to screw off, or pry/pull off, I would really appreciate it. I got an exploded diagram of a Dana 30 from my local shop and it does not show this thing. Does anyone know what it is?

And, does this look like the correct rotor? I think I got the wrong part.
http://albums.photopoint.com/j/View?u=1566898&a=11902491&p=47926486&Sequence=0

Another question. What is the deal with the exhaust manifold? What operates this "flapper" valve thing? And what does it do?
http://albums.photopoint.com/j/View?u=1566898&a=11902491&p=47926490&Sequence=0
http://albums.photopoint.com/j/View?u=1566898&a=11902491&p=47926489&Sequence=0

Last question. What is this thing mounted to the side of the engine under the manifolds? None of the hoses were connected to anything. Can I just plug them off?
http://albums.photopoint.com/j/View?u=1566898&a=11902491&p=47926488&Sequence=0
http://albums.photopoint.com/j/View?u=1566898&a=11902491&p=47926487&Sequence=0


Thanks for any advice you can offer.

[Tumbleweed]

The flapper thing in the exhaust manifold is the heat riser which deflects warm air to the carb.
Can't figure the last photo?
The wheel bearing lock nuts take a special socket tool with prongs on the end that go into the holes in that ring. It is RH threaded and unscrews counterclockwise.
You might be able to take a punch and hammer them loose but will probably destroy them and need new nuts, there is two per side and will be hard to get to without that tool. NAPA carries them.

[scooper]

that last pic is were the oil presure gage hooks up to.
as i posted before go to jeepwire.com from there jo to trailtalk, then jeeps and your in.jeepwire is by far the most informitive site going .there is a guy john nutter and another guy superdawg and im here to tell you there aint nuthin these guys cant tell you about jeeps.

[scooper]

i was wrong,those things are on the other side.that thing runs two ruber VAC? maby hoses one to your exaust flapper and one to the carb.maby egr valve or somthing???

[John Strenk]

What year is this block?I'm guessing 78 or 79 or 80 because Jeep whent to a 5 bolt hub in 81. I thought it was a temperature sensor for the EGR valve at first but then I notice another one to the right. Mine has the temp gauge here because the head some guy put on didn't have an opening for it. He elininated the EGR valve in my case.

I also noticed all your AIR injectors are plugged so it's not an oververly emmission engine.

The flap in the exhaust manifold is called a heat riser. It's to deflect some of the heat from the exhaust to the floor of the intake manifold to improve the vaporization of the air/fuel mixture when the engine is cold. It's controlled by that little spiral spring I can see in your pics. When the engine gets warm enough it opens the flap. Make sure this thing moves freely. there is a special lubricant for this thing. Your lucky the spring hasn't rusted apart yet. I have several manifolds with the sping rusted apart. Later model manifolds have an electric heater under the intake manifold and the intake and exhaust are not bolted together.

Did you bust any studs pulling that intake/exhaust manifold apart? Looks like two are broken off. Not good.

How long has this motor been sitting. I see that there is some corrosion on the 1,2 and 6 exhaust ports or are these cylinders running to lean due to a gasket leak.

Also it looks like your heat riser to your choke is comong out. This can cause an exhaust leak. I can cuase you a headache if you don't plug it now when it's off. Thats that little pipe coming out of the exhaust manifold.

[John Strenk]

Oops. I see your other post you just bought a '79 CJ5.
Can you still see a sticker on your front grill that might have a vaccuum wiring diagram? This might point out what this is. Do you know if this is the original engine? It may be something left over from some previous swap.

I can post some vaccuum diagrams if I can find them for your vehical.

Couple things I found you don't eliminate from an engine

1. Carb heat tube. Jeep runs like S*** in the winter for the first few min. and carb can freez up. Been there done that.

2. Heat riser jamed open all the time. Same as above.
My '63 had one of these.

[scooper]

not sure if its the right rotor or not but like i said the 77 78 roters are 1 1/8 inch in thickness wereas the later ones are 7/8s.calmers manuels are good for parts and such things and there cheap 13 bucks i think.

[Sunshine]

Well I finally got the wheels apart. The "cap" thing in the pictures was screwed on and just required more patience than I had applied.

John - that's some good info on the other stuff. To answer some of your questions - this Jeep has been sitting for 4 or 5 years. I did break off the 2 studs that hold the exhaust and intake manifolds together. I also do not see any way of getting the exhaust pipe off the manifold without breaking those studs. I'm thinking I'll just take it to a machine shop and have them all replaced. The spring on the flapper seems fine. None of the 3 hoses in the last picture were connected to anything. I have some new tubing and asbestos wrap from another choke heat tube repair - I intend to replace all that. The old one was just sort of stuck into the little tube on the manifold. I'm not familiar with how air injectors work. I've never fooled with emmissions stuff. Which parts are you referring to? As far as the corrosion on the exhaust ports, the engine has not run in several years. It could be just corrosion, but it may also need a valve job and new head gaskets. I'm going to replace the manifold gaskets and put it back together. If I find more serious problems, I will only have wasted a few bucks on a gasket kit. If it only needed the new gasket, then I'm all set for top end for awhile. I bought a new (reman) carburetor for it. I had to pry the choke plate open on the original carb with a screwdriver - it was rusted shut. Several other places looked like they were beyond just a rebuild kit. Now that I've got the wheels apart, I've got to order a few more items and we can start putting things back together.

I'll post some pics when we get it running.

Thanks,
Mark

[John Strenk]

The AIR injectors usually go right were the plugs (6) are in your exhaust manifold where it bolts up to the head.

Do yourself a favor and do a compression test on your engine as soon as possible. You may have a rusted valve seat if it sat for a long time and you will have a poor running engine. You may throw a lot of money at it before you find out about the compression. You dont need the intake manifold on to test it. Just need the starter hooked up. Look for even readings between all six cylinders. If one is way off it could be a problem.

Are you going to replace that locking ring with a couple of nuts? The ring looked like a neat idea but I've never seen a replacement part like that.

I'm glad you posted this first. I'm tearing apart a '79 axle soon and now I know what to look for.

Good luck. Keep the faith. There are so few CJ5 left on the road these days.

[Willysboy2001]

Wow....great pictures...Im doing somthing similar very soon also, but on a 76cj5.....


C.T