Several months ago, I swapped my flywheel, clutch and clutch line. It had been driving well for months, but my wife just reported that the clutch wasn't springing back up, just like it does before it's bled properly. I'm deployed, so I can't do much for her from here, but she said here's no leakage visible and the fluid level is unchanged.

Would an air bubble hide this long to cause this issue? Has the new fluid slowly contaminated and lost its strength?

I'm looking for ways that a wife (quite mechanically inclined for a wife, I might add) could do some simple tests and help figure out what's wrong.

 

I don't think that an air bubble could have been trapped in there for that long. Unless there is a spot in the hydraulic system for air to enter, you should be fine considering that the clutch system has been bled and sealed properly.

She's looked at the clutch fluid resevoir, and it is at a good level...have her take a look at the clutch pedal itself to make sure that the return spring is properly secure, and functioning as intended.

I've seen manual G35s, and this is pretty rare, where the shaft/tube that the release bearing slides on actually wears out, creating a "dip" along one of its sides. This causes the release bearing to get hung-up on the tube, and doesn't allow for the clutch pedal to return properly...

Hope you get this issue resolved...good luck.

 

clutch slave cylinder?

 

Man I wish I could help out here, you've helped so many of us in the A/V section and we appreciate it.

But I've got nothing for you...............