If I didn't have the stuff at home to determine what the threads were in that wheel I'd take the old one over to my ACE hardware and find the bolt that fit it right, then I'd know what the threads were without a doubt.

 

problem is it the turbo shaft is what I need to know the size of. I got my heatgun out and got that sucker HOT and tried to spin on... nope.. I can feel the thread start to turn when i push on the shaft it sorta binds up a bit and hold the shaft still.. The wheel will start to turn on shaft threads and then bind.. Same thing when i try to run the tap through old wheel it WILL NOT GO. the 1/4- 28 is NOT the correct size of the shaft for some reason. I don't want to cross thread the wheel so for now going to bag this deal. bummed

 

Since you have the compressor housing off, count the threads on your shaft in a given distance - say 0.250-0.500" and report back. That will get us going in the right direction a bit faster.

 

 

the tap will not thread or screw into the old wheel but will in the new one which tells me they are different. The hole in wheel is ok size as the shaft will slide through the body to bottom of threads but the shaft will not thread into the wheel. going to measure the threads tomorrow in the light. or try to.

 

I honestly think you are in over your head on this one. Rather than make this harder than it needs to be why not just pull the turbo and install it correctly? All the wheels I have ever installed either say on the website or on the box to not install on the truck or with an impact. I bet between KC, Riffraff, and Dieselsite there are probably 10's of thousands of these wheels out there so unfortunately it sounds like it is an installer experience issue.

 

I appreciate your candor but I was not wanting to pull turbo, which is a PIA job as you may well know just to replace a turbo wheel. I was able to remove the OEM wheel without taking turbo off, and installing the other wheel, i was taking off now, without removing turbo so I think i have a handle on doing this. I did remove the turbo to replace pedestal o-ring, new 360 bearing, redo fuel lines, adjust torque on rocker arms and injector hold down clips.

but thanks for your concern.

 

I will guarantee you the you have wasted more time messing with this and typing replies than it would take to pull the turbo. R&R of a turbo is a 2-3 hour Job. I have swapped many wheels out and it is much easier with the turbo off. All wheels as already mentioned are snug going on. You will almost always have to hold the turbine wheel to install a new compressor wheel.

 

 

Drill out the entire threads with 1/4" bit for snug fit or 5/16" for looser fit and install with a little or a lot of JB weld depending on hole size? Should slide right on.

I have typed this a few times and keep deleting it. If I get a little vacation so be it....... me

 

Attempting to steer us back on track, did you get a chance to count the threads? Once we get a number over a certain distance we can figure out what your shaft is threaded and get you cooking with gas again.

 

My guess is that the turbo shaft, on your turbo, is 6.0mm x 1.0mm.