1991 Jeep MJ - Daily Driver turned Unreliable Hot Rod

[89 MJ]

Glad to it seems fixed. Having dealt with overheating issues for a few years in my truck too, I feel your pain. It feels good having that problem solved. 

[natander2ksometime]

4 minutes ago, 89 MJ said:

Glad to it seems fixed. Having dealt with overheating issues for a few years in my truck too, I feel your pain. It feels good having that problem solved. 

Thank you! I am certainly hopeful. It gets real hot in Colorado in the summer, but Brian tested it thoroughly in the heat with the upgrades. 

 

Brian did three main things. First, he installed a ZJ fan clutch, which is something I hadn't done. He said the "new" Mopar fan clutch I had installed was bad. It had marks of where the fluid inside had leaked out. What a waste of money. He also swapped radiator caps, as the one I had on there (which was cap #4-#8, I've lost count at this point) was also bad.

 

The other big thing, my clocked NP242 was about to tear a hole through the floor. So, I don't know that I would recommend doing that after all these years of running it. On top of that, the case was about to explode! It was so worn out that the output shaft in the front had a lot of axial play. So, he swapped to a 231, and got a new driveshaft rebuilt. It drives real smooth now!

[natander2ksometime]

Small update time. I've been working on repainting the front bumper for a while now. I've learned my lesson on painting things with bed liner. Don't do it. It took me days to strip down this thing, and it's by no means perfect. And once I was ready for painting, it was 5 degrees outside. So I'm painting at work, which I am grateful for. I've got a few cool things to do to it, but it should be pretty close to driving in the next few weeks!