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Update on the R2.8 The little engine has a little over 7000 miles now. I am still chasing temperature fluctuations from all of the coolant lines and I have disabled a return line that I had running to the radiator inlet that was basically full flow 3/8 that bypassed the thermostat. It helped...

Worland, in the Big Horn Basin, Big Horn Mountains to the east and Absorka Mountains to the West

Pretty much what I see

Well, with the new winter front on I can get the engine up to 172 after driving 65 for about 3 miles. I back flushed my heater core with compressed air and now I can get 120 degrees out of the dash vents with the engine at 170+. Once I get into town and drive slow my coolant will slowly drop...

I just got done making a winter front for the TJ. I used some black naugahyde and put three snaps on the top and two snaps on the bottom. I took my digital thermometer and tested temps in the engine bay. After 30 minutes of idling the coolant temp on my murphy gauge read 118 degrees and my dash...

Are you familiar with the Cummins R2.8? There is a series of hoses called out to keep air out of the cooling system flow. Even though these hoses are only 3/8 inch in diameter, they are bypassing some coolant around the thermostat. In cold weather with very little engine load it is almost...

Sounds about the same as mine. I haven't really checked my fan clutch to see if it is free wheeling like it should be in cold temps. I just scored a hard top a couple of months ago and that is helping, but hot inside the cabin it isn't, more like luke warm. I might revisit my de airing lines to...

Winter is back and my Jeep has turned into my go to town vehicle just because it is fun and good on fuel. Keeps me from putting so many miles on my dually. I am back to wanting a nice winter cover. I can get engine temp up to around 170 if I am driving around 60 mph in 5th gear. If I slow down...

I went to Curries website and looked at the specs for the new Rock Jock 4.5 lift rear springs. It shows a loaded height of 13.5 inches and a free length of about 18.5. I just loaded my Jeep onto my trailer for a elk hunting trip tomorrow and measured the rear springs. Top bucket to bottom bucket...

While my Jeep seems a bit heavy, most of the added weight is unsprung weight from the Currie Axles. As far as sprung weight goes, my diesel engine weight is similar to the 4.0, a little extra weight with the klune vee doubler box and the atlas II transfer case probably weighs a bit more than a...

Winch weighs about 100 lbs, right now the spare tire and high lift jack are removed and it makes no difference in ride height. Bottom line is that something is off. When I put the Rubicon Express 5.5 inch springs in the rear of the Jeep jumped two inches with no spacers! Too tall for my short...

My currie kit is probably 20+ years old and the rear springs were short and stiff. They did flex well, but when I got the Jeep it already had the lift and the 2.5 inch spacers and it sat level.

My TJ is a little heavy, usually between 5200-5500. The rear is typically about 300 lbs heavier than the front. It has front and rear winches though, but the spring issue was there before I added any extra weight and doesn't change much even if the rear is totally empty. Right now, my spare tire...

So as it goes when we buy a ride, it takes time to make it ours. I have had my TJ for almost 5 years now and it is getting closer to perfection. Two weeks ago I stumbled into a nice hardtop for 50.00 and made a friend too! Back to the subject at hand. My Jeep came with a Currie 4 inch lift and...

I used to get info on the Cummins Repower forum and power toys was active there. Now I can't find the forum anymore, maybe it got taken down. When doing online searches about the R2.8 Power Toys pops up and bad mouths the engine. When I contacted them before it seems like their tune was close to...

I had to drop my 23 dually gmc off at the dealer to have some warranty work done and I towed my Jeep down so I had wheels to run around. It turned out that they didn't get my truck done the same day, so after putting on 114 miles scouting for an Antelope buck, I filled up to find out I averaged...

I am probably around 20 mpg running around town on short trips. The best part is in the mountains in 4 low where it easily uses 1/2 the fuel of the old 4.0 gasser and has gobs more torque.

The TDI box has been doing a great job, they claim 213 hp and 369 ft lbs of torque. I run it on the highest setting all the time and don't have any issues. It moves my 5500 lb TJ very well, much better than the 4.0 gasser for sure. I don't drive on the highway a lot, but last year when I was...

I am running a TDI tuning box from Europe. It is a fueling box that plugs into the wiring harness and modifies the fueling, kind of similar to the Banks Derringer. If I remember correctly they claim around 50+ hp with this box, it has six or seven levels and I really only run level 7 for max...

To the intelitronix question on the Tach, I run mine in 8 cylinder mode and the tach is very close to the murphy guage, within a couple percent. I also have a rear winch and installed a second 27 series battery for the winch that is tied into the main battery. On cold starts, the grid heater...