Recent content by Fred

My experience with my 90 over 33 years is that it takes multiple burps to get the air out. It's now a 4.1, with a 11-1 compression ported HO head, Hesco cam, Hesco water pump, bored T-body, Mopar headers, 2.5 inch exhaust pushing a heavy beast on 35's at 6k feet and above. The only time I needed...

I have a 90 so they are very different. I had Mopar headers and a 2.5 inch exhaust installed early on, I've had it since 92. The exhaust didn't make a whole lot of difference. I live at 6k feet, so the beast always ran rich. I had the throttle body bored, actually the same as an HO T body, and...

I have Hooligans, all the stiffeners, the crossmember, and front installed. I like them, they are a small shop, and local in CO.

Do the frame stiffeners, and a upgraded spacer. You'll need it eventually. I have them, and a cross over stiffener that no one makes anymore, a winch bumper, rock rails, and roll cage, the beast doesn't bend much. I can do 80 easily on 35's with upgraded steering.

Run it, burp it, run it burp it, etc. It takes 4 or 5 burps to get all the air out. Flowkooler is a good pump, Hesco has a better one. I can't see where coolant should make any difference. I run a high compression, 4.1 at 6k feet with a 20 year old cheap aluminum radiator pushing a heavy beast...

Frame rail stiffeners. I have the front ones and a cross-member stiffener. Floor pan is an easy replace even for a Harbor Freight cheap mig. I have the mid and rear stiffeners sitting on the floor of a garage, someday. If they were installed and tied into the full roll cage, rock rails, and...

Flowkoolers work well, or they did when I had one years ago until the fins wore off. I use the normal 50\50 with tap water and a cheap two aluminum radiator that's probably 20 years old. I do have a stick, and also a built 4.1, balanced, ported and milled 11-1 HO head, Hesco water pump and cam...

One, all XJ cooling systems need to be burped multiple times. Two, my 90 with a cheap two row aluminum open system radiator runs very cool. It's a bored 4.1, milled 11-1 HO ported HO head with a Hesco cam and water pump, bored T-body, Mopar headers, 2.5 inch exhaust on 35's, 4.11's, stick, full...

As I said, Hesco water pump. They are frequently sold out. What's another $200+ difference make. LOL.

Bleed the coolant system? Who does that? It needs to be burped, over and over again. I envy your Comanche, had one for awhile. My 4.1, balanced, ported HO head milled to 11-1(I'm in the Springs), Hesco cam and water pump, bored t-body, Mopar headers, 2.5 inch exhaust on 35's with 4.11's and a...

I thought I'd put this on here for those of you contemplating rebuilding your 4.0. I had one rebuild at about 175k, not sure I've had an electric speedometer since I installed a 4-1. It was done at a shop with a good rep, pretty standard, I had a HO head installed, I already had Mopar Headers, a...

Well, I had to get up and look at my printout for the Jeep Renix manual. Not a thing in there about the CPS. Doesn't seem like Jeep wanted their mechanics to know about the CPS. LOL I just replaced one when the beotch stopped for no reason just leaving the house and again the upgraded sensor...

It's not that bad. Back in the old days, I replaced mine with a high-altitude CPS from Jeep, doubt if they are still available. Lots of extensions, on my stick I could see and get my hands up there. I am now doomed and the POS is going to fail on me. LOL

I've had a 90 since 92. I live in the Springs. It has always run rich, the only time it didn't pass back in the day, was when it needed a new catalytic converter. Even now when it is a 4.1, 11-1 ported HO head, bored T-body, Hesco cam and water pump, Mopar header and 2.5" exhaust some of the...

Yep.