Mesh on N5C

[AliHumphrey]

Hi,

How do make sure I have the correct mesh on my N5C? I managed to lose some teeth on my main gear on my 6th flight.

Cheers,

Ali

[flyalan]

The mesh on the N5C is really not much different than any Heli.  You want to be loose enough so there is no binding.  I have never used the paper method on the N5C.  I do them by feel mostly.  You can cut strip of thin paper and place it into the mesh then tighten the gear against it.  Tighten the bearing block up, pull the paper and you should be good to go. 
You do need to be sure the lower lip of the clutch bell is level with the clutch plate and the starter shaft does not bind.  When everything is aligned correctly the mesh almost will set itself. There is enough play in the motor mounts so you can get the clutch aligned correctly, have the started shaft not bind and the mesh set correctly.  It gets easier with experience 


Cheers
Alan

[Ross Lawton]

Hi Ali,

If you engine/clutch stack is out of alignment then it could cause the problem you have experienced.

On my N5 i am using an OS55HZ and i have used the engine spacing shims that go between the engine and mounts, to mesh the main gear to pinion i left the engine mounts loose with the engine fitted and also left the clutch stack loose then cut a strip of paper, about 10mm wide and feed it in between the pinion and main gear while pressing on the front of the clutch stach forcing it towards the main gear making it good and tight. Tighten up all the bolts on the clutch stack then while spinning the started shaft with your fingers adjust the engine alignment for a smooth feel to the start shaft and then tighen down all the engine mount frame bolts. Once this is all done remove the slip of paper and you should have a good gear mesh and a good alignment of the clutch stack and engine.

I have used the 'Paper Meshing' method for years and it works a treat for me.

Hope this helps, if you have any other questions just give us a shout.

Cheers,
Ross

[AliHumphrey]

Thanks guys

[Kevin Feil]

+1 for Alan and Ross, I have used the paper method as well as Dental Floss, Crazy but worked great, like Ross said Clutch stack alignment is imperative to get correct first! Good luck 

Best Regards,

Kevin