First of all, I'd like to thank Gary Kentosh, Larry Bastanza and Prime for the PDF on changing the timing belt and water pump. A simple alternative to the pin punches for locking the camshaft are hex bolts. 5mm- 8 x 50mm are available at Home Depot for 60 cents each. They are 5mm in diameter (threads are 4.9) with a 8mm hex head and 50mm long. I couldn't find the pin punches and didn't like the idea of using drill bits (metal can be brittle and break). Never would have tackled the job if it wasn't for this very informative and detailed PDF. Jeffrey