An unfortunate accident starting the engine up without removing the clamps I had on some pulleys resulted in a 1.5" hole in the "front plate' of the oil pump assembly just below the water pump. It is one of the three bolt anchors for the drive fan., and located above the crankshaft. I have the two pieces, and tried to repair it in place. No such luck. My question: can the front plate part of the oil pump body or assembly be removed without taking off the crankcase, oil pan, etc. which entails removing the wheels etc. I would like to get it welded if possible. I also need a new drive fan pulley including the triangular base. Thanks