1 K100 fork seals did wrong oil cause them to leak? Thu Aug 07 2014, 10:53
Fentible
Silver member
Took my K100 up for its mot today and it passed.... So out for a run and I'm impressed with the way it goes. Did about 50 miles and when I got home noticed that the fork seals were leaking, the left worse than the right.
Now what's strange is that I did them yesterday and using BMW originals that came as part of a spares cache. At point of fitting they were fine and were also fine on the ride to the MOT centre about 4 miles away.
I've successfully fitted fork seals to numerous machines and never had any leak. used the time honoured method of bashing them in using the old seal on top of the new and a suitably sized socket as a driver. I also sanded the end of the stanchion with 1200 wet and dry applied some red grease and carefully inserted the stanchion into the new seal.
My thoughts.
The seals were old stock and not in a bag, dried out shrunk?? (they looked and felt okay)
I used 10W oil to provide a firmer feel to the front end but its too heavy for the seal?
Accept the fact I've not fitted them properly.
Anyone care to jump in?
Now what's strange is that I did them yesterday and using BMW originals that came as part of a spares cache. At point of fitting they were fine and were also fine on the ride to the MOT centre about 4 miles away.
I've successfully fitted fork seals to numerous machines and never had any leak. used the time honoured method of bashing them in using the old seal on top of the new and a suitably sized socket as a driver. I also sanded the end of the stanchion with 1200 wet and dry applied some red grease and carefully inserted the stanchion into the new seal.
My thoughts.
The seals were old stock and not in a bag, dried out shrunk?? (they looked and felt okay)
I used 10W oil to provide a firmer feel to the front end but its too heavy for the seal?
Accept the fact I've not fitted them properly.
Anyone care to jump in?