Ganjah help needed!

[S.Workman]

Originally Posted by David

Have you soaked this keris for any long period of time in a mild acidic liquid such a pineapple juice or vinegar? I have never had to remove a gonjo when cleaning a blade. Prolonged soaking with frequent brushing with an old toothbrush and then working the crevice between the gonjo and blade with a sharp needle point would be my approach personally. The acid liquid should loosen the rust, but this could take up to a week or two soaking, brushing and picking.

I have soaked it, but I am a bit shy of damaging this already worn blade by too prolonged a soak. If you look at the pictures I posted, you can see that some details are quite faded.
Also, the ganjah was already loose on my other keris, so I was able to see the interface between the two parts, and it was quite rusty. Because of that, I am worried about leaving rust in that (tiny) gap, since it could spread. Am I over thinking this, do you suppose?