Thread: p76 overheating in range rover

Hi, I can give you some pics of a mates p76 engine in a p76 if this helps? Sounds like the radiator is stuffed, flushing or having it serviced by a "radiator shop" can do/ mean bugger all if it's damaged/corroded inside.

Yeah I thought so, But it was fine with the old 3.5 engine, no overheating or anything... and the heater isnt pumping out as much heat anymore

Umm yeah if you have some pics of ur mates p76 particulary behind the water pump n where the 2 hoses go that would be fantastic thanks

What's your email address, not sure how to load onto website?

So, maybe it's the new engine?

I would also try a new radiator cap, with correct pressure. Make sure it has the correct cap fitted, that is - if overflow goes to the ground, cap must not have rubber around the base of cap as it does with "closed" systems. Often people put "closed system" caps on open systems.

I would put thermostat back in once you have determined the fault, put in the lowest you can get, drill a 2-3mm hole in thermostat so any air bubbles can vent out of system. Did you air bleed system with heater fully on with new engine?

Would swap over or get a new temp sender from engine, good practise as they can fail and damage temp guages.

Yeah I thought it might be the new engine, Well the funny thing is the temp sensor doesnt work so I only know its overheating when it pops the overflow hose off n ****es out water so its not the gauge hehe (Im in the middle of putting a gauge in as we speak)

My email address is troy@ctech.cjb.net. Thanks heaps for this..

New cap you say? ill have to give that a go, i was also going to try a different water pump because with the top hose off the manifold on idle the water just sits there and only moves when it's rev'd. Ill put the thermostat back in, its always good to run it hehe

I might take the radiator down to the shop n get them to flow test it and replace the core or whatever they do and get rid of that silly small radiator bottle n weld a cap directly on the radiator.

I've emailed 5 pics.

Originally Posted by Slow Disco

I've emailed 5 pics.

Thanks heaps for that! I havent got thenm through yet but ill check again tomorrow!

Originally Posted by maxpower

I was also going to try a different water pump because with the top hose off the manifold on idle the water just sits there and only moves when it's rev'd.

Well that sounds like your problem right there, Water should always be flowing through your radiator hoses if you dont have the thermostat fitted. So deffinately sounds like the water pump.

For an easy radiator check at home, water hose on high in the top inlet and check the flow out the bottom, should be a pretty easy full on flow

Also just in case
make sure your core isnt filled with mud/stuff, blow out with compressed air or even a water hose but dont use a pressure washer as it will bend the core fins.