Can you explain why the top 2 hoses on the stat are hot and the bottom is cold. When I increase the rpm the bottom hose gets hot and the temp instantly comes down. I've checked the stat in hot water and it's functioning correctly.
Sounds like yours is not functioning correctly and the bypass valve is not sealing completely at idle. Once the engine reaches the thermostat setpoint the bypass valve should close off completely, pushing all the coolant through the radiator. This is a common failure on the factory design and the reason the inline thermostat works so much better is there is no bypassing the radiator with the inline thermostat, everything has to go through the radiator.
Can you explain why the top 2 hoses on the stat are hot and the bottom is cold. When I increase the rpm the bottom hose gets hot and the temp instantly comes down. I've checked the stat in hot water and it's functioning correctly.
Sounds like yours is not functioning correctly and the bypass valve is not sealing completely at idle. Once the engine reaches the thermostat setpoint the bypass valve should close off completely, pushing all the coolant through the radiator. This is a common failure on the factory design and the reason the inline thermostat works so much better is there is no bypassing the radiator with the inline thermostat, everything has to go through the radiator.
That makes sense. I am tempted to go for the inline. @extinctmotorsportsengineering
@@Secker9 96 5 star reviews! inlinethermostats.com/land-rover-discovery-2-inline-kit/
can I remove bypass valve?
No, built in to thermostat. You can only replace the entire factory thermostat with an inline thermostat that does not have a bypass valve.