rear main seal

Recently purchased a 2003 B300 V6 with 145,000 miles on it. I’m noticing a slight collection of oil happening on drivers side of oil pan and running down to the pan drain bolt/ rear main seal area. I inspected the oil filter and was able to give it a few small turns by hand to tighten it up so...

i took trans out for swap and wanted to do rear main seal because it was leaking and there is something in front of it that i don’t know how to remove and if i should. it has to be apart of the crankshaft as the flywheel bolts thread through it, plz help. as you can see from the pictures it is...

Just replaced the engine in my 07' ranger 4.0l. Replaced all timing components and all kinds of things. I was a complete idiot and removed the metal sleeve from my rear main seal thinking it was only to protect the seal during shipment (honestly don't know what I was thinking lol). Long story...

So my 97 ranger 4.0 is leaking at the rear main seal. I was told that this was due to play in the crankshaft which is also causing a knock. Now I know my mechanic said it was a knock but I don't haveany symptoms of a knock, i.e. Economy loss, power loss, metal shaving in oil, etc. so I'm...