I’ve always wondered why I had such a hard time clocking the turbocharger sections. The center section is free to rotate with respect to both the compressor and turbine housing but not just any way I want because – at least with Garrett units – the 1.06 A/R turbine housing interferes with the oil and coolant hoses. Worse, once it’s clocked it can be difficult or even impossible to tighten the turbine housing bolts, and that was when I noticed the big-ass snap-ring on the compressor section. With the suitable snap-ring pliers, the compressor side can be removed entirely which makes it much easier to tighten the turbine housing bolts and the coolant and oil fittings.