Vehicle & Technical > Range Rover
Over Heating
ben_haynes:
Rangie 3.5 V8 Carb Auto
it Over Heats all the time, i have changed the water pump (as it leaked nd the bearing was shot), i have fitted Electric fans, which work fine and flow correct, the T-Stat is removed (to allow cooling beter) i found a small blockage of CRUD in the small Pipe from manifold to the radiator, Cleared the blockage with Airline and it kicked a load of CRUD out the manifold and then worked fine and then on way home from work it overheated i have flushed the system once.
Please help as im going to Torch it if i cant fix it soon
Range Rover Blues:
It's going to be something annoyingly simple, popssible another partial blockage, perhaps the system isn't bleeding itsled out and you have an airlock. As a guide if you take the brass/plastic plug out of the rad you should see water spiraling in the space below, this tells you the pump is pumping and the system should start to blled itself.
I'm not totally familiar with the carb 3.5 but if it has the large brass nut on the heater pipes then you have to fill the system there and not the header tank, I also bleed air under pressure from this nut (be careful, you have to do it with the engine hot).
ben_haynes:
it hasnt got a brass nut on heaterpipes, i open the Radiator Bung and water Spashing and bubbling around,, the pump is brand new and does Flow fine
i have forced water in (using hose pipe) and it now seems to have cleared itself :dance: but for how long i dont know???
Range Rover Blues:
Sometimes when you change water it seems to develop air in the system as the O2 boils out.
clbarclay:
Might it be something not directly related to the cooling system its sefl like a carb running lean, causing the engine to run hotter than normal?
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