Fork oil amounts 2012 GSA

[Gsnelly]

Hi all,
I’m about to send my shocks off for service, while I have the bike in bits I thought I would do the fork leg seals. The Haynes manual says the forks will need 0.65 litres of 10wt oil……..can anyone tell me if that’s each leg? or is that the amount needed for both legs?
And is it a pretty straightforward job…….it looks it, but Ive been caught out with the unknowns that Haynes sometimes forgets before!
Cheers

 

[Slipperyeel]

It's a straightforward job, though quite a lot of stuff needs to come off to retrieve each leg. 0.65ltr is each leg.

Probably the 'hardest' party is getting the seals the right way up and then driving them in without damaging them. I printed a tool so it was done in under a minute with zero damage, but it's easy enough to improvise (if you have a printer I can send you the STL).

Buy OEM seals. Don't bother with after market items. I tried that and wished I hadn't - there was no cost saving either. Ended up doing the job twice as the after market items leaked.

Last detail is to reassemble the whole lot carefully and with patience. I mean the forks back into the bike. Not sure how good the Haynes manual is on that - BMW workshop manual is probably better tbh - I'd suggest getting a CD if you're likely to be doing more jobs.



Sent from my SM-S908B using Tapatalk

 

[Gsnelly]

It's a straightforward job, though quite a lot of stuff needs to come off to retrieve each leg. 0.65ltr is each leg.

Probably the 'hardest' party is getting the seals the right way up and then driving them in without damaging them. I printed a tool so it was done in under a minute with zero damage, but it's easy enough to improvise (if you have a printer I can send you the STL).

Buy OEM seals. Don't bother with after market items. I tried that and wished I hadn't - there was no cost saving either. Ended up doing the job twice as the after market items leaked.

Last detail is to reassemble the whole lot carefully and with patience. I mean the forks back into the bike. Not sure how good the Haynes manual is on that - BMW workshop manual is probably better tbh - I'd suggest getting a CD if you're likely to be doing more jobs.



Sent from my SM-S908B using Tapatalk

Thank you very much for the reply, will give it a go next week. It’s a pain that I now need another bottle of fork oil……sold in 1 litre bottles but i need 1.3 litres for both legs!
Will try and use an old seal as the interface to help me seat the new ones…..

 

[Steptoe]

Here a link to the 1150 “Hints and How to” section - replacing leaking 1200 forks seals is the same, a 15 minute job . No real need to change the fork oil as it’s purpose is just to lube the sliders in the stanchion and offers no suspension difference - https://www.ukgser.com/community/threads/fork-seal-fitting.62436/

 

[Slipperyeel]

Steppers past post is a good one . And of course he's right about the oil.

Personally, if I can, I'll pull it all apart and start from scratch and in my particular case the handlebars were misaligned from when I bought it (meaning it had all been apart at some point). So taking it all apart turned out to be the only way to reassemble it all properly. Has been nice and true ever since, but it wasn't a 5min job!

Definitely options on how you can tackle the job



Sent from my SM-S908B using Tapatalk

 

[EllaNelson]

It's a straightforward job, though quite a lot of stuff needs to come off to retrieve each leg. 0.65ltr is each leg.

Probably the 'hardest' party is getting the seals the right way up and then driving them in without damaging them. I printed a tool so it was done in under a minute with zero damage, but it's easy enough to improvise (if you have a printer I can send you the STL).

Buy OEM seals. Don't bother with after market items. I tried that and wished I hadn't - there was no cost saving either. Ended up doing the job twice as the after market items leaked.

Last detail is to reassemble the whole lot carefully and with patience. I mean the forks back into the bike. Not sure how good the Haynes manual is on that - BMW workshop manual is probably better tbh - I'd suggest getting a CD if you're likely to be doing more jobs.



Sent from my SM-S908B using Tapatalk

Yes, typically, when the manual specifies the amount of fork oil needed, it's for each leg. So, in your case, you would require 0.65 litres of 10wt oil for each fork leg. As for replacing fork leg seals, it's generally considered a straightforward task for those with basic mechanical skills. Just be sure to follow the manual's instructions carefully and seek additional guidance if needed. I always read guides from non Gamstop casino https://notgamstop.com/ before playing online casino games! So you will be prepared and safe! Best of luck with your bike maintenance!

Thanks for the advice, I will keep it in my mind. I appreciate you for answering