Having read the numerous issues with XJ overheating I noted the drip of coolant coming from the water pump and replaced it, the thermostat, coolant and hoses and got it flushed.
Took it for a boat tow and it overheated after 60 km in 28C day. I'm thinking that as this was hwy speeds towing (90kmh) the radiator may need to be removed end tanks off and cleaned properly. In the interim can I "lock up" the clutch fan so it is on 100% from startup? Can you glue or jam these on? I'm not 100% sure it is working properly as there is little difference in resistance when I turn this by hand when cold or after running hot after towing? Should I be able to feel a noticable difference by hand? I plan to replace this with a elec fan anyway soon?
Thoughts about the clutch fan or just run with the radiator overhaul?
My problem was the clutch fan. It sound exactly like a problem I had with my last 4x4. The radiator still flows but I took the radiator out and got the ends/ top & bottom cut off and a Full clean out and respray. Never went over 1/4 temp again.
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Faulty Clutch Fan/radiator
Goes in tomorrow
