Hi all,
My Simjet 3000 start to behave strange, all of a suddent.
When running the engine 30% above idle it start to "pump".
It runs steadily for 2 sec, go down for about 1/10 of a sec and runs again 2 sec, down 1/10 of a sec and so on.
I appears all ower the range above 30% of idle. The aircraft is flyable with the problem, assume I lose about 5-10% of thrust.
But still, there is a problem.

The engine have performed excellent for about 15 hours of running. Before the problem occured, I discovered a fule leak, or say air in the fuel line. After fixing that problem the engine start to behave bad.

HELP, HELP, are heading for vacation and if things go good, visiting Holsterbro, Denmark.

Bengt T.