i have a 1992 BMW 318I 4 cylender 5 speed. My water pump recently went out and I am having a heck of a time getting it out. One of the aluminum removal holes is cracked and wont allow me to get a good grip to ease it out with the two bolts. Only one will work to ease it out but bottom is still stuck in place. Any suggestions on how to get the water pump out. It will be greatly appreciated.