Knocking from bellhousing

[howeitsdone]

Another day, another noise...

 

My initial thoughts are pilot bearing or throwout. Only does this with clutch disengaged. Speed usually doesn't matter.

 

 

[kidz429]

I have same thing. I had a 2.4 and swaped in a 4.0 from another mj. Put new clutch and connecting parts on as was doing the swap. Mine stops if I rest foot on the pedal just enough to move Pedal but not engage it. Mechanic friend that done the swap that I absolutely 100% fully trust said it might be one of the teeth slightly bent. We are going to put a spring on the pedal to pull the slack out of it then I’ll drive it till it goes, then replace it. 

[howeitsdone]

I drove it yesterday and found it makes this noise when the engine is bogging during coasting too. Say I'm in 4th and coasting from 35mph down to 20mph, it will start knocking then. Might be leaning more toward pilot than slave. REALLY hate that I'm going to have to drop everything again, but seems like the only solution.

[mjeff87]

Try (carefully) holding the clutch hard lines on either side of the BH while it's making the noise at idle and see if the noise goes away (assuming an internal slave/throwout).  It almost sounds like your TO is loose and rattling around inside the bell.