My engine is too hot

[Matvey]

My f4.6 engine is too hot with plenty of smoke coming out

 

[Vinni]

How hot it is ? Hot t touch or hot hot iver 250 f ?

 

[Scott27]

My f4.6 engine is too hot with plenty of smoke coming out

What's the temp?

 

[Horatio]

My f4.6 engine is too hot with plenty of smoke coming out

Define your estimation of 'too hot'.

Nitro engines produce smoke from the oil (lubricant) as it burns in the combustion process. So smoke is usually a good indicator that your engine is at least being lubricated.

Fuel choice - some fuels have a higher percentage of oil. Counter intuitively, this results in higher running temperatures for a given tune, due to the chemistry - oily fuel burns hotter, but the oily fuel offers better lean run protection and a broader safe tuning range.

Don't adjust your tune to attain a specific temperature.

Tune your engine to run right. It should be able to tick over for a minute or so before loading up, transition from low to mid, and mid to high.

At high speed, your exhaust should be a misty plume. Not billowing. Conversely, too little smoke indicates too lean.

Your engine should sound 'on the pipe'. Not wooly.

Once you have a useful, responsive engine that is quick to speed up and return to idle, this is where you can make a note of the operating temperature - purely for reference - for that kind of weather condition, and at that height above sea level.