Hi guys, just wanted to ask a quick question.

Its regarding my AE .15X, but its more of a 'general engine maintenance' thing.

When I first broke in my engine with 10%, I didn't have any ARO, so I just tore it apart and dried all the fluids with a clean cloth.

At one point, I had forgotten about it and my engine's crankshaft and rear plate had some rust build up.

At that point, I started running ARO instead of the engine-breakdown procedures I usually did.

Its maintained the same volume of rust/whatever it is on the back of the crankshaft and on the crank backplate.

Now I'm wondering, could I still clean this up, or is it too late and I'd need to purchase a new crank and backplate? The other side of the crankshaft is clean, I just didn't want to take the whole thing apart for the pics.

Pics of crank only:





Thanks in advance for the replies.