RRC - Getting hot wierd symptoms !

[phib]

Hi all my 1991 3.9 RRC has been running perfectly for ages ( still drives perfectly now !!)

However it went in for a coolant flush at landrover ( well oil service and coolant change) it wasn't getting hot pre the change, it has always sat at 1/3 of the gauge.

Now its come back and its getting hot, hasn't hit the red but its nearly there, heater on full blast cools it down and then its ok but still hotter than normal

So here is what I know so far ( I am no expert at all !!!)

Running perfectly, no misfires, no lumpy idle
No coolant loss ( I am stumped by this)
Hard top hose
Heater working
Air con working
Water flowing,hot top and bottom hose
Viscous coupling ok
Fan working
No mayonnaise in oil

Meant to have been checked for exhaust gasses in coolant, all ok

I know the thermostat isn't great but if anything this should make the water flow better .. not worse

As I say I am no expert so any help would be gratefully received !!

Thanks

Phib

[phib]

Thanks, it's driving me nuts !!

Plan is to bleed it again, fit new expansion tank cap ( just in case!!) spoke with the garage and they now say they cut the thermostat ( wonderful !! ) to make it flow better.

Logically I can't workout a) why they didn't just fit a new landrover one for £11 and b) how an open thermostat could lead to overheating !!

Will also check the sender wires and sender !!

Many thsnks

Phib

[phib]

Yes "garage" in the loosest possible term !!! They call themselves specialists !!

Can't use enough swear words to describe my view of them !

Anyway should get it back tomorrow and then I can start going through it in detail !

Thanks for advice

Phil

[phib]

Right, after another morning checking at idle it sits perfectly to temp as it always has done but as soon as it's under load ( after 10 mins of driving) it's getting hot again

Not sure if this makes any difference to anything !!

One garage has said they believe porous block ( which it could be) but it's not loosing any coolant at all which makes me suspect. ( hope !! ) it's not !!

Thanks

Phib

[phib]

Well it was all going so well !!! bled the radiator / coolant, loads of bubbles out !!

Took it for a test drive 15 mins all perfect just below half, AC on life is good .....

Next ... clouds of white smoke, coolant light on and temp up !!

So it must have been head gasket and or block.

Let it cool and wont hold coolant now (pouring out of the bottom), suspect the heater matrix pipes have blown off.

Still runs perfectly though !!!

New engine time now me thinks.

Thanks for all your help

Phib