69 Cj5 V6

I'm at about 500', so you are probably right. It tends to stumble when I apply throttle if the choke isn't out a bit, even when hot.

How worried should I be about running lean? I have a week and a half before this thing needs to be ready for a 300 mile road trip. Do I need to make rejetting a priority before then? I don't have a lot of experience with carbs.

 

Glad to see you made it home safe. Lean can lead to burned exhaust valves in my experience.

 

Glad to see you have it going your way.

 

I found .051 jets in my parts carb, which I believe are correct for my elevation. I'll take the good one apart today and see whats inside.

 

Over the past two weeks, I rushed to accomplish a bunch of things on the Jeep to prepare it for the 325 mile trip back to college. Unfortunately I didn't get a lot of photos of the progress, but here's a list of some of the things I did:

-new water pump, heater hoses, and repaired radiator leak
-11" brake swap on the front
-tie rod adjustment, tightened up steering system, caster shims added
-new u-joints on rear shaft, angle shims removed from rear leaves
-bottom two leaves removed from each spring pack for softer ride
-soft top installed
-new windshield glass installed
-wipers repaired
-back half of the wiring harness replaced
-emissions equipment removed
-new jets in carburetor and misc. adjustments
-motor and transmission mounts replaced
-all body mounting bolts replaced and body realigned
-mechanical clutch linkage replaced with cable
-new parking brake cable

 

All loaded up and ready to head out at 7am:


About 1.5 hours into the trip, as I approached a red light, my brake pedal went straight to the floor. I pulled over, checked for leaks, and found nothing, so I concluded that the master cylinder must have failed. I was desparate to make it back to school and not have to leave the Jeep behind to be towed home. So I adjusted the brakes to minimize slack that would need to be taken up when braking, and then I continued to drive VERY VERY carefully. By taking back roads that were mostly deserted on a Sunday afternoon, I was able to avoid the brakes almost entirely.

The Jeep and I arrived safe and intact at about 6pm, 11 hours after I began driving...


What an adventure! Besides the brakes, the Jeep performed well. The only other issue was some vibration in the steering, but it was tolerable. In October I'll be making the drive again

 

Thats a great looking jeep.

 

Glad you made it safely. The jeep looks great.

 

I haven't updated this in a while. School is very busy and hectic. I replaced the MC, and added a Pertronix and coil. The upgraded ignition definitely helped it run a lot better, but after a few more trips to and from school, the engine developed a pretty bad noise. Mostly noticeable at idle. At first I thought it was due to excess up and down play in the distributor, so I added some shims that were included in the Pertronix kit. That didn't help, so I determined it must be the timing chain. The noise was getting so bad that I didn't trust it to make the 350 mile trip home, so I set out to replace the timing chain in the school parking lot. What a job!

After removing all the accessories, and draining the coolant, I was able to remove the front cover. Here is the old timing set.


Clearly it was long past due to be changed. Not many teeth left!


New set installed.


While the front cover was off, I opened up the oil pump for inspection. I found some scoring on the plate that connects to the oil filter, so I did my best to remove the scratches using 400 grit sandpaper on a piece of glass.


After reinstalling the front cover, I pulled the oil pan off for cleaning. I wanted to ensure any coolant that was spilled into the pan was removed, and since the nylon sprocket was missing so many teeth, I wanted to get them out of there. As expected, I found a pile of teeth along with some shiny metallic goo in the bottom of the pan.


Once the pan was cleaned, I reassembled everything and put fluids back in. It runs better than ever! Much quieter and more smooth at idle. A vast improvement. Buuut.... without all that noise, I was able to distinguish a nasty sound coming from the transmission Whenever the transmission was in neutral and my foot was off the clutch, it sounded something like sand being poured into a metal pan. So now that I am home for winter break, the Jeep has been torn apart yet again.

Ready to come out:


All separated. I used an engine hoist to lower the transmission, adapter, transfercase, and crossmember all as one. I don't think I will be able to reinstall them using the hoist, because it was pretty awkward getting them out that way.


Clutch removed:


Is it worn out? Seems like a decent amount of material left. Just curious, I'm replacing it either way.


Is the pattern visible on the pressure plate normal? Again just curious. It's getting replaced.


Flywheel. Again note the way the surface looks. Normal?


Transmission on the bench:


The cage was falling apart on the rear bearing. You can see in this photo that it was rubbing against something.


Mainshaft removed:


More to come in the following days.

 

This thread made me think of a few ghastly jobs I was forced to do in parking lots at school..

Amazing what can get done by flashlight in the early hours of the morning to avoid curious onlookers...

Nice job and nice jeep