Hi

Sorry for the delay in responding to this post, but unfortunately I was not receiving indication from RC Universe that there were any new posts.

Anyway in answer to your query, it sounds like the seal on the bearing may have failed hence you are seeing oil from the front. Small amounts of black oil should not be a concern, and this will not harm your engine.

If you did want this bearing replaced though, we could do this under warranty, please email me [email protected] and I can provide you with an authorisation number for a warranty repair.

Best regards
Laurenne