Ok I’m having an issue and my m 85% convinced it’s on me.
I have a ptc bolt together that has been terrific. But I’m changing my comboto go a little slower with less boost, and need to loosen up the converter. Had a 19 blade stator in it and I bought a 21 from ptc to replace it with. I throw it together easy peasy, and I can’t turn the assembly easily with input shaft. Ptc was convinced my stator was stacking up larger than my old one, I I milled .012 off the bottom cover. No change. Everything spins free until I tighten up the cover. I even tried throwing in the old stator and it’s also got a lot of drag. Now I don’t know that it wasn’t this way when I took it out because I didn’t spin it or have reason to. They want me to measure clearance to the top cover next. I just don’t see how it could have changed. I can send it in but he’ll im hard headed and want to figure this out.
Anyone have something I ought to check or that I could have done?

will it turn with the 19 back in it

quote:

Originally posted by SG2716:
will it turn with the 19 back in it

Still damn tight

Does there cover/pump have alignment dowels to make sure everything is still on center?

How does the bushing in the cover look?

Is there any noise associated with the tight turning?

quote:

Originally posted by FTI:
Does there cover/pump have alignment dowels to make sure everything is still on center?

How does the bushing in the cover look?

Is there any noise associated with the tight turning?

Great questions
Bushing looks normal to me
No odd wear
No noises with the drag

Oh and dowels yes

Measured both stator assemblies and one was .025” taller than the other. Took the top bearing support and took off .015 in the lathe. Ok it doesn’t spin. But turns. Will it loosen up enough during run in or do I onock another 10-15 off one of the bearing supports?

Your converter should have no more than .010-.015 of total in clearance if it has bearings throughout(should if its a bolt together)

Assuming you have the exact same bearings and shims through the converter in the same spots they were before. The correct thing would be to take .025 off of the taller stator. (make sure you are measuring on the face where the bearings ride)

Before just cutting the stator/stator caps. Measure each side of the stator in relation to the fins of the stator and compare to the other stator. you make sure that the bearing faces are equidistant from the stator blades in comparison to the first stator.
If you don't follow this step you could inadvertently move the stator closer to the impeller or turbine and cause the stator to hit and/or change the stall of the converter as well.

I'll be available to chat at the shop on Monday or if you're at Gainesville this weekend, I plan on being there tomorrow we can talk in greater detail.

-Dalton