r100gs - gear oil just won't stop leaking. WHY?
Hello all, I've a r100gs 1988 model and I have a bit of a problem.
The bearings went on my last gearbox and unable to replace them myself I opted to get a new (well reconditioned) box. I fitted this and started to notice oil coming from the output seal. It was coming out at the rate of about 100cc every 500miles. Not a lot but enough to cause a lot of mess on the exhaust box. As we plan to go to Africa it needed fixing as gear oil is harder to come by there to keep it topped up.
I, and everyone who saw the oil coming out, was certain that the seal was leaking. I got in touch with the shop who sold me the reconditioned box and they agreed to send me a new one to try out. I have put that in and the oil is still leaking out!
I'm now really confused. It can't be the output seal twice I am certain it is fine. I'm not overfilling the oil and I'm using the correct type. I'm not busting the seal when I attach the drive shaft. The V shaped groove in the back of the geabox is the newer type small diameter hole so I shoudn't need to fill it. What else can it be?
Any suggestions would be appreciated.