thank you for your message and interest in Kindernay products and/or service.
The amount of oil to be used with the VII has been reduced to minimum, or approx. 5ml, but that's been done nearly two years ago already.
Kindernay did all service inhouse and never shared instructions or info how to exactly repair oil leakage. There are information in some Kindernay owners groups, from people which disassembled the VII hubs. Opening the hubs without causing damage is quite a challenge or requieres special tooling, therefor we do not recomment doing it, if not familiar how to. But in the actual situation without service centers, we understand that you might look into it further.
Be advised, to open the hub, you need to clamp the hub body and open the lid. Because the hub tends to set apart, the bode should be clamped with driveside down and putting force onto the lid upwards! The only points to put pressure on are the extended brake supports the lid has. It is crucial to apply this pressure eavenly across the hub (that normally requires special tooling already). The lid has a tight fit with an O-ring, therefor it snaps open, when it opens, otherwise its sealed quite well.
From the minimum information I have about the seals that could cause the leakage, these should be regular available parts, unfortunately I don't have measurements.
But before dealing with opening and replacement, due to the high oil level, even with undamaged seals, the hub could leak. Set up an oilchange and reduce the amount of oil significantly, or let it pour completely, the residue is still enough for the hub to run smooth (maby little louder).
Future oilchanges would only be pouring possible amounts of old oil and then fill with 2-3ml and run it with this amount.
the trail.camp Team
