11. To install the new CAS drive pin, support the cam so that damage to lobes and bearing journals is not possible. When installing the CAS drive pin into the camshaft, insure that it is exactly aligned as shown, with the half round extension positioned on the left (9:00 o’clock if the cam dowel is at 12 o’clock) and the straight edge aligning with the middle of the cam dowel pin.
12. Using the female coupling you removed from the old CAS and a hammer, tap the CAS drive pin slightly into the cam and check that it’s rotational position is correct before seating the CAS pin. If the alignment is good, continue to seat the CAS pin until the female coupling bottoms in the shoulder hole, as shown (the hammer feedback will feel distinctly more solid).
Final inspect the assembly. Remove the O-ring dampener from the female coupling on the new CAS unit, and assemble the CAS unit, CAS mount, and camshaft with new CAS drive pin into the cylinder head. Check that the CAS unit moves freely in the register and that there is no binding. Reinstall the O-ring dampener on the CAS unit and final assemble the engine.
JWT CHROMOLY CAS DRIVE PIN PART NO. AZ320-CASPN