2005 Redline Red, Tremec 6 Speed
Discussion Starter · #1 ·
My beloved R has an annoying oil leak at the rear pan area. I have been under there cleaning and looking for the origin unsuccessfully. I found some posts here and on the Corvette Forum regarding this problem with some early LS2 engines. From what I have read there was a GM TSB about aluminum block porosity and rear main seals. Further research indicates that the porosity issue was rare but many LS2's benefited from changing the rear engine cover and pan gasket as well as the rear main seal (no small undertaking). I'm not sure if this is my problem but it certainly could be.... Everyone knows that chasing oil leaks is at least hit and miss and at most a huge expense. So here's my question: If there is anybody out there with any first hand experience on this issue, one, how likely is it that this is what is needed to fix this leak and two is it smarter just to keep wiping the floor and topping off the oil than to spend big bucks chasing this leak? At this point the leak is not bad enough to keep me from driving the vehicle however it will probably get worse. Any advice will be much appreciated.