How I fixed my Land Rover tick (slipped sleeve)
#131
If you're standing in front of the car looking rearward at the motor you will see a bleeder screw on a T-piece for the coolant immediately to the rear of the top of the radiator. The hose the runs off to the left of that T-piece and down to the thermostat is the hose i blocked with a bung.
Granted it's ramshackle thing to do but hey it worked and it matches the standard which Landrover made the rest of the motor to anyway
Granted it's ramshackle thing to do but hey it worked and it matches the standard which Landrover made the rest of the motor to anyway
#132
Romans method was to bypass the hose that comes out the passenger side of the t fitting, which is really a bypass of coolant from the radiator, which cools of course, and directly pumps uncooked water back into the block. If you could tell me more about what you're trying to cure I'd be happy to offer specific insight. I found my liner slipping happened just around 200 degrees, and even with a 180 stock style thermostat the truck will idle up to 225. So, my fix was an inline thermostat, 170 or 180, you're just buying the housing, hose, and bleeder fitting, and then you can play with actual thermostats. Just google disco 2 inline thermostat parts list and you'll be good. It's where I ended up after much fiddling, you're doing yourself a favor by just getting it. I've added a few thousand miles and still no noise or issue.
#134
Romans method was to bypass the hose that comes out the passenger side of the t fitting, which is really a bypass of coolant from the radiator, which cools of course, and directly pumps uncooked water back into the block. If you could tell me more about what you're trying to cure I'd be happy to offer specific insight. I found my liner slipping happened just around 200 degrees, and even with a 180 stock style thermostat the truck will idle up to 225. So, my fix was an inline thermostat, 170 or 180, you're just buying the housing, hose, and bleeder fitting, and then you can play with actual thermostats. Just google disco 2 inline thermostat parts list and you'll be good. It's where I ended up after much fiddling, you're doing yourself a favor by just getting it. I've added a few thousand miles and still no noise or issue.
#135
Inline thermostat modification done - Land Rover Forums : Land Rover and Range Rover Forum
This was first to pop up, simple google search, "discovery 2 inline thermostat parts"
Good luck, concerned that the 168 that you noise begins may keep this from helping you much, but definitely shouldn't run warmer than about 188-190 on the high end with the 180 inline stat.
This was first to pop up, simple google search, "discovery 2 inline thermostat parts"
Good luck, concerned that the 168 that you noise begins may keep this from helping you much, but definitely shouldn't run warmer than about 188-190 on the high end with the 180 inline stat.
#136
Slipping liners
Actually i carefully drilled and smashed out the innards of the thermostat so there was no obstruction to waterflow in any direction. I then blocked the hose mentioned with a bung. The hot coolant from the engine is then forced through the radiator to properly cool it before it's directed back to the engine.
It was an experiment really and wasn't to be a permanent fix . As edouglass mentioned an inline thermostat would be a better fix. However, i haven't gotten around to doing that yet on mine and it still runs beautiful with no rattles.
For some reason Landrover designed this thermostat so that it didn't stop the hot engine coolant from recirculating even when at running temp. I'm of the opinion that the hot water recirculating from the engine also impedes the cooler water from the bottom of the radiator from entering the engine properly perhaps because of pressure and temp difference ? Landrover probably designed it this way for emissions reasons i guess to keep the engine running as optimal as it could temperature wise.
As the engine ages and tolerances grow between the alloy block and cast iron liners from all of the slight overheating the liners then start to slip. My car is also running on LPG which runs slightly hotter also. (though i run it a bit rich to minimize the rise in temp)
In the end as far as i can see the thermostat is the culprit and Landrover should have fixed it !
It was an experiment really and wasn't to be a permanent fix . As edouglass mentioned an inline thermostat would be a better fix. However, i haven't gotten around to doing that yet on mine and it still runs beautiful with no rattles.
For some reason Landrover designed this thermostat so that it didn't stop the hot engine coolant from recirculating even when at running temp. I'm of the opinion that the hot water recirculating from the engine also impedes the cooler water from the bottom of the radiator from entering the engine properly perhaps because of pressure and temp difference ? Landrover probably designed it this way for emissions reasons i guess to keep the engine running as optimal as it could temperature wise.
As the engine ages and tolerances grow between the alloy block and cast iron liners from all of the slight overheating the liners then start to slip. My car is also running on LPG which runs slightly hotter also. (though i run it a bit rich to minimize the rise in temp)
In the end as far as i can see the thermostat is the culprit and Landrover should have fixed it !
#137
#138
There is no issue with overheating using the inline thermostat set up. Anyone that has ever posited otherwise has been incorrect from the dozens of posts I've researched. The factory set up was a poor attempt at, I don't know. It's been commonly thought the OE set up was to help reduce emissions, but I don't see how that would really work. How much lower are temps in the combustion chamber now that the hot spots in the block are 25 degrees cooler? But I digress.
#139
slipped sleeve
Hi Savannah Buzz.
I have a 2003 Discovery 2 with 97K miles and slipped sleeves.
Do you know anyone in Georgia that can pin the sleeves?
Thanks or your previous posts. They helped a lot!
I have a 2003 Discovery 2 with 97K miles and slipped sleeves.
Do you know anyone in Georgia that can pin the sleeves?
Thanks or your previous posts. They helped a lot!