Found a few decent d2's that otherwise check out. I'm getting the sense that all these blocks and or liners fail just north of 125k miles. Trying to get a sense how true that is. Can anyone chime in?

 

Mine's at over 175k with no troubles. The blocks from earlier years are probably safer since the jigs were tighter, making the machining closer to spec. Once you start getting into the 4.6L is when things seem to go amiss.

 

No.

My 01 retains everything the way it was from the factory. While parts have changed, the routing, hoses, parts are still the way it was built.

Getting ready to do the head gaskets again and drive it to 300,000. Currently have 225,000.

The liner movement is overrated. People develope other issues and think its the liners every time. While it "may" happen I have never seen it and I have had my block into the 240's-250's, possibly even higher.

 

Wow good to know. I guess ivI' been reading to much. Based on the threads it makes it sound like any d2 over 100k is a ticking timebomb.

 

Remember...there are allot of beginners here and some really experienced.

Just because you see a steamed chamber doesn't mean its the liner.

 

To add they are 14+ years old with in most cases a completely unknown to you service and drive history. Even with a non aluminum engine it is a roll of the dice buying a truck of this age.

All you can do, is do your due diligence when buying and then make sure you keep up the maintenance. Cooling system and lubricants checked and changed when due. Keep right on top of any codes that come up.

If you buy cheap then assume nothing has been done, budget to have all the fluids changed, including coolant, the transmission serviced, and serpentine belt changed. With luck the truck and you will happy.

If Murphy likes you after all of that you should be fine.

 

Not many people seek out forums to talk about how great their engine is doing. usually come here when they have problems. That is about the usual life of head gaskets though.

 

233K on my Kalahari zero issues. As mentioned earlier engines like the 4.0L (99-02 D2/P38 RR) and the 4.6L (in the P38 RR from 99-02) were better made due to the equipment that made them wasn't worn out. In 03-04 LR was already about to roll out the LR3 so they honestly didn't care much about the quality control on the D2. Once the last one rolled off the line that was it.

 

Just over 305000 km (190k mi) and have had zero issues with head gaskets. Knock on wood. She hasn't been perfect, but I can tell you how neglected she was when I picked her up with 282000km on it. I would drive my truck across the country today, and wouldn't worry or break a sweat.

 

I don't think there is any reason to worry if you maintain your cooling system. Make sure you have genuine Thermostat's changed at the recommended intervals, and a scangauge/ultragauge/temp sensor that will warn you of overheating. It would have been nice for LR to install a decent temp gauge. Check your hoses frequently and just make sure she does not overheat.

I allowed my thermostat to go bad, and that did my original engine in. I wouldn't buy a Disco without a Turner Tophatted block, and H180 Cams, for peace of mind and performance sake, but if you are maintaining it I don't think you have anything to worry about.

In a perfect world find either a 2002 or earlier well maintined, or get a '03 or '04 that someone gave up on and drop a new block into it.

Or save your pennies, buy an LS 4.8 from a yard, and have lucky 8 or Trailhead put it in for you. Those engines are much less expensive than Rover V8's, but right now there is no kit, they do the install.