Quote:
Originally Posted by oragex
a good working engine doesn't get hot - if a petrol engine feels overly hot at the top, there is a problem with it (even if the temp gauge sits at 12). Mine was also really hot at the top and I didn't had the undertray at that moment, I asked people on forums and some said it's normal, it turns out there was a problem with my engine, don't remember exactly what (perhaps wrong spark plugs or clogged coolant passages or faulty air intake thermostat for the N/A engine) but once fixed, my engine now has a very good top end temperature much much lower that before, and now I have the undertray in place as well.
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How do you measure what you consider an engine running overly hot?
Eg the other day I ran the car at 1500rpm for 15mins while doing an oil flush and the outside temperature was about 22 to 24c.
After the above the oil filler cap was quite hot to the touch ie it was almost burning my hand.
Is that too hot?
This was before I fitted the undertray and with the hood open and the front of the car jacked up.