Allison Rebuild Main Shaft not seating

[BombDocDiesel]

I am almost finished with the rebuild on the Allison. I tracked down all of the balance pistons, bearings, bushings, seals and a new C5 from TKT Sales out of PA. The kit is a Stage 4 from PPE. The pump came from a new pull-out '09 Allison.

I am including most of the build up pictures. I have yet to get the mainshaft to re-seat once I flipped the Allison over. I am following step by step in the ATSG manual and I don't see where I missed anything.

It turns with a little effort but I want to make sure. The manual says 0.100" fully seated and 0.290" NOT fully seated from the top of the P2 Carrier.

Please let me know if I screwed something up.

The stand

Torn Down

I somehow deleted most of my C1/C2 pics.
Modified C2

Swapped 09 pump

Going back together

I rebuilt the extension housing assembly the morning I did the C1/C2 so I lost those pictures as well.

I'm hoping I made a simple mistake and can just take it down and try again.

 

[Mike L.]

You should have called me. Mainshaft needs to be supported with a fixture to hold it 1/2 inch higher. You're pulling it apart again.

 

[BombDocDiesel]

You should have called me. Mainshaft needs to be supported with a fixture to hold it 1/2 inch higher. You're pulling it apart again.

Got it. You know what, you told me about that. I will have it apart and put back together correctly in the morning.

Thanks again Mike!