How do you tension Porsche 944 cam belt?

To tension the cam belt on a Porsche 944, first, ensure the engine is at TDC (top dead center) on the compression stroke for cylinder one. Loosen the tensioner bolt, then adjust the tensioner until the belt has the correct tension, typically by rotating the tensioner pulley. The correct tension can be verified by pressing down on the belt halfway between the camshaft and crankshaft pulleys; it should flex about 1/4 to 1/2 inch. Finally, tighten the tensioner bolt to secure the adjustment.