Hi Heli,

With my sophia's (JetCat ECU), the oil pump pulses. It turns one revolution once every second, pauses, then turns again. This is the pattern when the engine is operating. I usually see three puffs of smoke (one for each revolution of the 3-lobed pump mechanism) every 2 seconds or so.

As for getting the NGV off, you have to remove the compressor, shaft and turbine (the bearings usually come out as well). You can then carefully slide the cumbustion chamber off the shaft tunnel. Mark it somewhere (do not use pencil!) to insure it goes back on in the exact location. This is very important with the Sophias! The injectors must be precisely lined-up with the atomization holes in the chamber! After you get the combustion chamber off, you should be able to extract the NGV by pulling it out. It's pressed into the end of the combustion section. Again, be careful... it's easy to damage the vanes.

Here's a nice website with a J-450 disassembled for reference.

http://www.technologie-entwicklung.d...hia_story.html

If I can be of more assistance, please let me know. Oh...5 minute epoxy works well as a sealant on the fuel/oil manifold pipes.

Craig