Yes it sounds crazy and stupid. I consider myself a pretty well rounded mechanic and I also do it for a living. Anyways I tackled my first lb7 water pump job which wasn't a terrible job but in the process of removing corrosion kept the oil cooler pipe from seperating from the water pump and ended up coming out of the water pump. So didn't think much about it I replaced the oring on the pipe and slid her back in the cooler and proceeded to install the water pump lined everything up but noticed a small gap between the front cover and pump. Messed with for 20 minutes so I decided to run bolts in and work back and forth (done it 100 times on cat engines water pumps) anyways heard a nasty pop. Turns out the pop was the oil cooler busting where the pipe goes in. The pipe is made to go in a specific way I'm guessing. I ordered a new cooler and haven't messed with it. Can anyone confirm if the flat part of the pipe faces up towards manifold or did I just have an expensive idiot moment that I will learn from haha. Thanks guys
