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Merlin 140

Old 08-21-2013, 10:51 AM
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Default Merlin 140

Hi what is the best way to shut down the 140, & how do I go to auto cooling ? I take the turbine up to aprox 40k rpm & then close the trim which shuts the turbine down, this starts the auto cooling, if I leave the trim down the cooling is eratic and prolonged, then if I move the trim up the auto cooling stops, what am I doing wrong ?
Old 08-21-2013, 11:38 AM
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I'm pretty sure that the auto cooling is temp dependant. Meaning it is engaging and disengaging the starter until the temp falls below 100C. Trims must remain down. Manual cooling is also described in the manual?

Old 08-22-2013, 12:11 AM
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What mean "the cooling is eratic and prolonged"?

Surely what it happening is that your radio is not correctly programmed and the ecu enter in "failsafe" when the trim and stick are at low. Are you using digital trim?

Old 08-26-2013, 11:40 PM
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In normal conditions, the ECU cools the turbine down untill it is below 100 C.
Sometimes, the rest heat inside the engine can cause the thermocouple to detect a temperature, which gets back to +100 C.
In that case, the engine cools down some more.T
here is nothing wrong with that. and yes, it might seem a little eratic

If you move your trim back up again, the ECU shhould be back in a "ready" state.
that is, if you have programmed your ECU correctly.

You can manually override the cooling sequence by setting your trim low and your throttle stick full power.

I hope this helps.


Last edited by Cliffhanger; 08-26-2013 at 11:42 PM.

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