Quote:
Originally Posted by smokes
Err so your saying combustion chamber temp is the same as coolant temp? Which it isn't btw. And driving for 4 miles without coolant isn't going to warp cylinder head.
Warping is cause by uneven Thermal load across the head....
I may have said the wrong temperature cause I was trying to be simples 80 for the old indirect injected pug engines 87 for tdi with 5 phase injection, yes I know about knock sensors to allow you to run the engines as lean a possible. All I was saying was saying it a not a good idea to let it run hot.... And I said eventually AND not immediately!!
And are you sure there isn't a damping algorythm on the ford gauges at all? I am sure there is.
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oh dear you have done it again.
i have never claimed combustion temp is same as coolant, combustion temp is far greater than the coolant, but as your the bofin you would im sure know why its called coolant!
what sort of dick head rekons drivin for 4 miles is not going to warp a head? ,if thats your advice, keep ur gob shut! if the coolant has gone and the engine is a normal operating temp, then driving 4 miles stands a very high chance of doing damage to the head
why quote temps for an old pug engine when the posters question was about a modern VW? you back pedaling?
finaly ur next gaff
leaning (which is reducing the amount of injected fuel) a diesel simply reduces the throttle, richening (adding more fuel) increases power. from idle to full speed you add more fuel during the injection phase.
modern engies use the multi injector phase to get a more efficient burn which reduces knock, emisions and better mpg.
if you dont run your engine hot you get more wear and less mpg!!!