Fluid inside trailing arms

[Jatin]

I've been repairing the rear trailing arms.
Has anyone noticed a small plastic bung on the side near the hub/bearing area.
Out from the hole flowed an oily liquid which smelt flammable.

Does anyone know what it is.

Thanks

[sag]

I had the same thing when doing my arms. I think it's some type if waxy oil. To prevent the arms rusting inside out as they are hollow

[Jatin]

Ok thanks - what would I use to replace it

[bigbird76]

I remember this stuff when I refurbished my arms, I suppose a drop of thick oil would not do any harm and it is a cheap method as long as your plug is good.

Cavity wax is another option but that would dry off inside.

[DanThe]

Just pour waxoil back in, if its sealed up with the bung it wont dry out, adding some engine oil will help too