In the process of replacing the head gasket. Is there a way to remove the camshaft sprocket without disturbing the IP timing? Is it easy to re-time the IP when the timing becomes off as a result of the repair? Is there a special tool to use in timing the IP? Finished marking the gear and chain and crank pulley. What about the IP? Would it turn if the chain is moved? Is there a proceedure to follow? Thanks in advance for the help.