I have a 97 ES300. Replacing timing belt, tensioners etc. and waterpump. I have finally got the crank bolt loose and am unable to get waterpump off due to backing plate blocking. Have been unsuccessful at getting the left cam sprocket bolt broken loose. I can't remove water pump due to long bolts stick out and the pump hitting body before clearing the bolts. Is the a special way to get the cam sprocket off or the water pump off without remvoing the cam sprocket?