Sorry to hear that you got the inevitable ticking man. Happens to most of us sooner or later. Now some non forum folks would be quick to say your engine is done, destroyed or soon to blow up but take their advise with a grain of salt. My truck has had a tick since i got it and ive never had any engine trouble and my mechanic friend had a early 2000's D2 with well over 180k on the clock and a tick and well he beat the **** out of that truck at offroading events and the engine never blew up or failed. Ive read countless stories from owners with ticking engines, they just get used to the noise and carry on and hope for the best. Weigh your options out before you start spending money on parts or a replacement vehicle.

Best of luck to you man.

 

RMT appears right again. If it's simple metallurgy at c200 the iron liner is 'captured' but as the temp rises the alu block expands faster than iron and presto releases the iron liner and 'tap dancing' classes start. A cheapo stethoscope helps to identify the cause a bit better but the remedy is more complex, RMT 'special' weld, pegging or new top hat mod and liners, or alternatively, buy a TD5 lump instead

 

Well got my AC serviced yesterday and asked the mechanic to give it the once over on what he thought the noise was.

He thinks it's either a lifter or the noise has to do with low oil pressure. Again I'm very well aware that the worst case scenario is that this is a slipped liner. But I'm starting to think this is not temperature related. I had the truck up to temperature this morning. Hitting the 200's and the tapping was not present.

A new 180t stat is on the way and I think I'm going to rent an oil pressure gauge to check my numbers. Never once has the oil light come on in her existence.

 

Look I know this is beat to death but... The only way I know to keep the temperatures under control in these motors is an inline thermostat setup. I can get them to run ROCK SOLID 178-182 all day long. 16* to 95*. It's a no-brainer. just put it in. Then see if it makes noise and go from there.

 

Ok guys I wanted to give this thread an update. I have replaced the fan clutch, thermostat, and radiator cap and I still have this tick.

I am also getting coolant temperature spikes. It runs in the normal range most of the time. 194-199 on the Highway. 204.8-210 in city driving with the AC. However I am getting temperature spikes every once in a while and seems when they occur the temperature is getting higher.

At first it spiked to 215 and went back down. Then 217 and yesterday it spiked to 221. So I think obviously something is going on here.

Again there is no air in the system. Radiator, pump and thermostat are new. I cannot find a leak. I also did a combustion gas test to rule out HG. Came back negative.

What Im starting to think is that my temperature spikes are related to oil pressure. The light has not come on but the ticking persists.

I think my next course of action will be to replace the timing chain and oil pump gears and then install the inline thermostat. I tried to put an oil pressure gauge on to check it a while back and theres not enough room to put it on the adapter. So for piece of mind im just going to replace it.

 

Dude, that video you displayed is 100% a slipped cylinder sleeve. Myself, and SO many others have this same issue and the ticking is EXACTLY the same as in the video. The mechanics you took it to are not familiar with Land Rovers and think it's a lifter. I made the mistake of trusting my mechanic on that and had all of the lifters replaced only to have the tapping remain.

It IS temperature related, but you're still safe. INSTALL AN INLINE THERMOSTAT IMMEDIATELY. The more you drive the vehicle at temperatures such as that, the looser the sleeve's going to get and it's going to start tapping at lower temperatures. Mine started tapping at 140 degrees before I had the cylinders welded.

Right now, you have a few options: Re-sleeve the block, which is expensive, pin/weld the cylinder sleeves, or install an inline thermostat to keep the temps below 190. The last one is the cheapest and will fix your problem for a very long time. Do it before it's too late.

When I bought my Rover last August, I had the same tap and had the same hopes as you that it wasn't a slipped sleeve, but it happens to ALL of them. Don't bother with the lifters, and work on checking oil pressure. But first, install the thermostat and that should fix it for awhile, if not indefinitely.

 

I've definitely considered the sleeve issue. But if that's the case. Would I get temperature spikes like this? I'm already running a 180 thermostat. I know the inline can run it cooler. But how exactly does a loose sleeve overheat the truck?

I'm not losing coolant and there isn't any air getting in the system. What's causing my engine to run normally for most of the time and then cause a sudden spike and cool back down?

 

First off, the coolant spikes don't point towards it NOT being a sleeve, it points towards an issue in your coolant system which is another reason to install an inline thermostat. Seriously, don't even question it just get rid of it. I ran a 180 temp for a long time and my temps still stood around 195-208. WAY too hot. It's standard for Rovers with stock cooling, but that standard is absolutely terrible, in order for those engines to run reliably in the long-term you need to get the temps below 195 degrees.

Second off, you're not losing coolant because you're in the VERY early stages of this issue. If your tap starts at the temps you described, you still have a TON of time to fix this issue. You should not waste time trying to find other options. If it was a lifter it wouldn't tap in relation to temp, and if your oil pressure is good then that's another reason to point towards a sleeve.

 

Okay I just tried to purchase the parts for the inline thermostat mod but on summit racing this one

http://www.summitracing.com/parts/sum-360180

But it is not available. Is there another one I could use?

Would this one work?

Jet Performance Thermostat Powertech 180 Degree High Flow Stainless Steel Each | eBay

I'd like to avoid getting one that needs a gasket.

I'm following the parts list on this thread.
https://landroverforums.com/forum/di...tat-mod-32216/

I would need to find a 180 thermostat to fit this housing.
Meziere Enterprises

 

To be quite honest with you I had it done by a mechanic. You'll have to find someone else who knows specifically what to look out for when installing one. Sorry!!!