If 2 cylinders aren't firing the engine should be running very roughly. Things you can check are; Make sure there is no vacuum leaks on the intak...

We haven't received any feedback on if this was the issue with this engine. What engine do you have @type47?

Hello @Airfix430, The envelope gets extended up. The fore and aft limits don't change. And yes the trim system copes ok. And yes a discussion wo...

Hello Serge, Yes all J430's can be upgraded to 760kg. There is some requirements. The wing attachment bolts need to 5/16". And the placards needed...

Hello Peter, The piston upgrade is recommended because it is an exactly that, an upgrade. Early Gen 4 engines used a version of the Gen 3 pistons. ...

Not aware of the reason, I don't have the designer here to ask at the moment. However ~2lb is about right.

Hello Alex, The best way to check is to use a mechanical guage in the engine to confirm the pressure issue. That seems a bit hard as the pressure d...

If you post up some pics of the installation might be able to give some suggestions.

The only reason would be that, that is where it was found to work best in most applications. I am guessing from your rego that you are in South Afric...

Hello Cocchi, If the aircraft was built at our factory it should say on the metal dataplate attached to the tail. I think, if it is a J170, that i...

Hi Tim, I guess you engine is an older model engine. I think you should be able to post pictures now that you have made your first post. So put ...

If there was loctite on plugs it was just being used as thread sealant. As such any liquid type thread sealant can be used to seal the plug threads.

@lajab I have not received an email, I will look for it.

Hello LAJAB, The wing bush instructions are in the Tech manual JTM001-10 - section 5.23. However I think you are after the wing tank re-sloshing ins...

Hello LAJAB Yes is is possible to pull the wing of and re slosh it. You need to be able to tip the wing around in all directions but it is possible...