If you guys don't know, I have two Jeeps now. I picked up a purple 91 laredo from a friend. It has 274xxxish miles on it now. It has had a stuck lifter for at least two years. Well, I decided I wanted at least one running Jeep and the purple one would be the fastest to fix. I removed the valve cover to inspect all the rockers and pushrods. Everything was intact. Resealed the cover an installed. Ran the engine til it was warm, brought the rpms up in 500rpm increments til i hit 4-4.5k. Let it sit there for 5 mins then brought it back down in stages and let it idle for a few mins and shut it off. Next day did the same exact thing, this time I did it twice during the day. After that I drained the oil and replaced it with some mobil 1 delvac 15w40 I have in the shop. Ran it til it was warm and drained and filled again. I did the drain and refil twice then changed the filter and added the oil. I did this to make sure ALL the crap and sludge that was loose was gone. Ran the engine and guess what.....
Lifter was unstuck. Decide that it needed to be tested on a long trip, so I drove it up near Yosemite to visit family last weekend. Not a single tick from the valve train, great oil pressure, and on 3.55s and 31s I got 17 mpg. Well, On my way down the mountain to go See XJ Chuekin and buy some parts my RPMs, and Speedo quit working. Well, remembering the 91 is an electronic speedo I pulled over to check all the vss. Well, All were intact and no signs of damage. Decided I must have a charging issue or dead battery, well with no DVOM I shut the jeep off and to no surprise it would not start. Volt gauge didnt even read. towed it to Oakhurst and put an altenator and Batt in it and drove home.
This is how many miles were on it when the altenator crapped out.
So the jeep made the trip back no issue. Oil is a little dirty now so Im going to change the filter and all one more time. Before the trip I swapped rims and tires with the white jeep. Tires are almost brand new so heck, might as well.
This is what both jeeps look like currently.
Here is the tires that I swapped off the white Jeep.