Sachs forks - proper way to refill oil?

[aebbern]

Hi there:

I'm partway through replacing the forks seals on my '11 EC250 which has the Sachs 48 mm forks. I have a couple of questions about refilling them with fork oil:

- when I pour the oil in, is it important to ensure none gets into the inner hole where the damping adjustment rod goes? Should I keep the rod in place when filling or does it not matter?

- I have seen videos where positive pressure (fork extended, hand over the top, puch top down creating pressure)) is used to get the air out, and others where a vacuum (fork closed, hand over the top, pull bottom down creating a vacum) is used to get the air out... which is correct? Or does it not matter?

Thanks,
Andy

 

[stabak]

Hi there:
- when I pour the oil in, is it important to ensure none gets into the inner hole where the damping adjustment rod goes? Should I keep the rod in place when filling or does it not matter?

correct, tap the hole with a finger before pouring

- I have seen videos where positive pressure (fork extended, hand over the top, puch top down creating pressure)) is used to get the air out, and others where a vacuum (fork closed, hand over the top, pull bottom down creating a vacum) is used to get the air out... which is correct? Or does it not matter?

as long as you get the air out and have pressure both ways work. Be careful with the first not to extend the leg too much

 

[aebbern]

Thanks for the guidance Stabak - got her done tonight and now ready to ride.