fuel pump
 

how can you test your fuel pump my kj66 is not giving out full power the red led on the fadec is not showing up and my jet nearly did not leave the ground .new to all this

RE: fuel pump
 

Have you read the maual of this problem?

I understand you have a FADEC from Gaspar Espiell in Spain?
This is a very good ECU, as it is a Full Authoroty Digital Engine Control, allowing you to do anything to any micro radial jet-engine.

If you have, check the pump batteries on a good charger to tell you what the batteries is capable of by a test at the discharge menu. OK?
Is it a three or four cell pack?
What are your max rpm setting?
What cind of pump?
Are the fuel-flood free whith no failures or restrictor-effect? (Full filters or hard bends on the fuel line) ?

You may program it whith the engine off, to check the all the parameters at start and full throttle.
Just set the max temp lower than the actual air temperature, and this allowes the pump to start.
The air temp shows in the first screen. Do this at cold engine.
Next, disconnect the fuel line to the engine, and put this back to the tank.
This gives the same level in the tank as you perform the test.
Once rising the throttlestick, you will be able to the test the settings as long as you like, and hopefully, you will detect the problem.

Give full throttle, and take your time to have control of what is happening.
The LED should blink now, but if it don`t, there is absolutely no problem to mail Gaspar about it. He is a very cind person, who takes care of his customers.
But if you don`t perform this test ahead, he will make you do this.
But I doubt the ECU itself is the problem.

Hope this helps you out on this one.

Gudmund

RE: fuel pump
 

put the batteries on a charge-discharge -charge . i see tomorrow what they have put into it
the batteries is a 3cell pack.
this kj66 is working on pressure to the fadce tryed what you said about dropping the temp and running the pump the fuel pump seems to pick up in stagges the noise of the pump changes to a higger pitch but when i touch the throttle the pump goes of .
was all working fine last week

RE: fuel pump
 

I suggest you rewiew all the parameters to see everything is ok.
If the pump stops when you raise the stick, I would say there must be some wrong settings, OR too weak batteryvoltage.
If the batterys are weak, the engine will ozzilate in a strange manner, and never reach the max.
Try again whith fresh batteries, and if this does`nt help, contact Gaspar at this adress: [email protected]


Gudmund