How do you set the timing on a 87 Volvo 240 with a b230 engine?

Loosen the Tensioner pulley and push against the spring, and put a nail in the small hole to lock the spring back. Align the Crank pulley, Intermediate shaft, and Cam pulley to TDC, look for the notches for reference. Then put the belt on the gears in that order, and re check. Then pull the nail, and lock the bearing in place to keep correct tension.