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Welcome!

Congratulations on the purchase of your new Jets Munt Merlin 90K gas turbine engine. Jets Munt are dedicated to
the design and production of engines to the highest standards of quality and reliability to bring you the customer
the very latest next generation engine designs.

The Merlin 90 is the result of an intensive effort of design and tests by the Jets-Munt staff. During the 
development period we made extensive use of the latest Computational Flow Dynamics programs allowing us to 
optimize the engine performance characteristics.

Please  Read!

The  Jets  Munt  SL  responsibility  is  limited  exclusively  to the  repair  of the  engine  and  acces s ories
which  are  outlined  in the  conditions  of warranty.
Before  unpacking  the  engine  please  read  the  manual  and  agree  to the  conditions  of warranty.

Customer satisfaction is important to Jets Munt SL. Technical support is available through your local dealer and
trough email.

Jets Munt S.L
Torrent d’en Puig, 31
08358 Arenys de Munt
Barcelona. Spain
www.jets-munt.com
[email protected]
Fax: +34 93 7950113

Legal  and  Disclaimer

The engine design and the contents of this manual are copyright by Jets Munt SL, Barcelona, Spain.
All rights reserved.

This manual, the pictures and data are property of Jets-Munt and cannot be used or reproduced in any way with-
out written permission from Jets Munt SL.

Disclaimer

The Merlin 90K engine is a sophisticated piece of machinery. Care should be taken at all times when using the
engine. It should only be operated by those with the appropriate skills and knowledge to do so. This engine is not
a toy. Incorrect operation or misuse can cause damage to property and bodily harm to operators, spectators and
animals. Jets Munt SL accepts no liability for any kind of damage which may occur.
Jets Munt SL assumes no responsibility for any errors contained in this document and is not liable for any dam-
ages resulting from such errors.

It  is  forbidden  the  use  of this  engine  outside  Radio  Control  applications,  specially  those  that  power
vehicles  that  carry  people.

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Summary of Contents for Merlin 90K

Page 1: ...Merlin 90K Instruction Manual Version 1 0 2009...

Page 2: ...as system Gas Valve Engine installation Fuel system Fuel valve Fuel lter 11 13 ECU Engine Control Unit Set Up Aligning transmitter with ecu Preparing the engine for running First engine runs Priming t...

Page 3: ...ail Jets Munt S L Torrent d en Puig 31 08358 Arenys de Munt Barcelona Spain www jets munt com info jets munt com Fax 34 93 7950113 Legal and Disclaimer The engine design and the contents of this manua...

Page 4: ...y to re assemble without considerable dif culty and specialist equipment Simply slackening the spinner nut of the rotor will immediately lose the delicate balance condition without which the engine ma...

Page 5: ...touch the engine whilst it is running Turbines rotate at a very high rpm and the engine casing and exhaust can reach very high temperatures Ensure anything affected by heat is kept well clear of the e...

Page 6: ...ransmit incorrect rpm information to the ECU The fuel pump should be preferably mounted with the spindle in the vertical position with the motor uppermost In the event of any fuel seeping from the pum...

Page 7: ...e mounting provides an attachment for the temperature probe using the two nuts provided The temperature probe has been carefully shaped and installed at the factory to align with the small hole in the...

Page 8: ...tion of ow inside the lter is not important but should be always the same after rst use Do not run the engine without the fuel lter Finally connect the fuel pump the valves and the battery to the ecu...

Page 9: ...normally has the effect of producing the trim down function Check your radio manual for this before you start DO NOT use the digital trim in any case Aligning transmitter with ecu As the display does...

Page 10: ...trim and throttle stick are set to idle position on the transmitter Lower your throttle trim and the green LED will go out indicat ing correct reading of the transmitter engine shut off signal by the...

Page 11: ...e exhaust as soon as the airflow inside the engine is sufficient and will be ignited in the exhaust causing a hot start in extreme cases a big fireball that will not hurt the engine but can destroy th...

Page 12: ...n the exhaust temperature is of around 70 C the data terminal reading will change to SWITCHOVER during this phase the fuel will be routed to main injectors and the speed of the rotor will be progressi...

Page 13: ...the starter motor List of ECU message codes Here is a list of possible messages shown on the data terminal screen and their meaning TrimLow Indicates that the signal received from the transmitter corr...

Page 14: ...has dropped below a minimum Cause could be lack of fuel air bubbles problem with the batteries or defective RPM sensor The engine has been shutdown because the temperature has dropped below the minimu...

Page 15: ...ft turbine oils e g Aeroshell 500 Exxon 2380 Mobil JetOil II Mobil DTE Light turbine oil or 2T synthetic oil with a speci cation JASO FC or better 5 The fuel must be mixed with turbo oil in the ratio...

Page 16: ...om the ecu that can cause that a fully charged battery of 2000mAh be empty after 2 month Running Time Counter Using the second left hand button scroll through the menu s to the INFO menu This screen c...

Page 17: ...is insuf cient fuel or air bubble entering the engine during the initial start up 2 Low battery capacity 1 The ECU battery is empty recharge 2 The lters are dirty 1 The fuel level is low and or there...

Page 18: ...Jets Munt SL Torrent d en Puig 31 08358 Arenys de Munt Barcelona Spain Tel Fax 34 93 7950113 ww w jets munt com info jets munt com Copyright 2009 Jets Munt SL All Rights Reserved...

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