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I reckon Cooling Systems are fickle pricks of things at the best of times.
They only need to get that one issue occur then the temps all but run away and no matter what you do the buggers will overheat till you sort out the specific cause.
Uuuummmmm... just a quick one out of left field here... but...
Seeing as the Water Pump has been changed out have you confirmed the correct direction of rotation?
There are versions of 6.5's that have different DOR of the pump, Serpy belts go one way and V belts the other and they can't be swapped.
Just thinking there is a very, very small chance to pump may be the wrong one?
Sorry ET, I wrote that down poorly. It is the original water pump that came on the engine when it was done in Jan 2013. When I asked Brunswick about it, they said it was a 'High Flow' pump that had been introduced by Chev to combat previous overheating in the 6.5 series of engines.
Still, as it is one of the things I haven't yet pulled off and checked, I probably should.
This is the front of my truck. Bugger all there. I could move the number plate down and put it on one of those swing away thingies in front of the winch I suppose, but there isn't much else I can do about the bar.
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Hmmm, mine would have more obstructions in the airflow than that I reckon.
I spose it would be a good idea to pull the pump and have a look see.
Not saying it is wrong DOR (that is a real longshot) but will give you the chance to have a look at the condition and check out the amount of scale etc in the galleries
Yep, might as well. Bugger all else I can think of at the moment.
Do you have a infrared thermometer handy ben?
Not at the moment, but can access one tomorrow.
What are you thinking? I've put a temp gun all over the place during the last six months, hence why I moved the oil cooler.
Can you check temp differential between top and bottom of rad please. This may help point us in the right direction a little more. Do this both when its at normal temp and when its getting hot.
Will do. Probably later tomorrow arvo before I can get the time.
Got a Rugby BBQ night on this evening to see the Wallabies through...
89'C at the top radiator inlet and 82'C at the bottom today. That was general driving around town with a bit of a heavy right foot. I'll be heading up the range shortly and will take a reading at the top after giving it some stick all the way.