To answer Mike’s questions, let us first return to the basics. A rear main seal, or crankshaft seal as it is commonly referred to, is a big, round rubber seal between the engine and transmission. The ...

Technology has continually improved the way that auto manufacturers seal their engines. Yesterday, gaskets constructed of cork or paper, and packed-rope rear main seals were commonplace. Today, Teflon ...

My son has a 2011 4x4 diesel Holden Colorado and had the front crankshaft seal replaced as it was leaking. The next day whilst driving the engine developed a knocking noise, leaking oil and a wobbly ...