Problems with engine rebuild on 2012 glider
I need to know the difference in rebuild kits part number r23532565 and r23532558. It's a Fitzgerald glider with a Clark Power rebuild, 12.7 Detroit series 60 engine. When I gave the engine serial number to Williams Detroit for the parts to rebuild it, he gave me the r23532565 parts which I've found out are wrong after 90% of the rebuild is complete. My question - what is the difference between these two engine kits - Williams Detroit and Fitzgerald Trucking don't have an answer.
Is this a worthwhile discussion?