I had the water pump replaced because the seal was leaking coolant. When that was replaced the 751 was turned over and coolant could be heard leaking but couldn't find the source. The Bobcat mechnic that did all the work said that a water jacket could be cracked, intrnel problem. I was wandering if there is a conversion kit available for the 751 to switch out the Peugot to a Kubota and could the Kubota be a larger engine inorder to increase horsepower? Also would it possible to swith out the hydraulic pump from a larger mahcine to gain more hydraulic flow rate? I've noticed that they are close in size with the same size shaft and diameter. Any help would be greatly appreciated. Thanks.