The OEM half quantity is 31428532723 and is a set of elements for two fork tubes.
The service guide is good and clear as to the method and it solely took about 2hrs from begin to end with the bike up on my raise.
A tiny amount of oil can appear like a fairly large leak, it is deceiving how a lot filth only a small quantity can appeal to.
I attempted cleansing up the unique seal to discover a lower or some crud on the lips of the seal, however did not see something uncommon.
I used a common seal puller to rigorously take away the outdated seal. I would suggest putting some form of pad or safety towards the sting of the fork to forestall leaving any marks or nicks within the steel.
The following image exhibits the black coated floor that takes all of the power on the highest finish of the fork tube earlier than changing the seals. There’s a related thrust floor within the decrease finish of the fork as properly, however I did not exchange something apart from the highest seal and wiper.
Subsequent I poured out the fork oil right into a graduated cup and it was about 500ml. The guide requires 545ml in addition to measuring it throughout reassembly to be 90 +/-2mm from the highest of the decrease fork tube. The unique fork oil was not contaminated/soiled, so I topped up the amount to 545ml in my pitcher and poured it within the decrease tube. With this new quantity, it measured from the higher lip of the tube about 75mm, so I saved pouring it out till the measurement was at 90mm…which nearly equaled the 45ml I added within the first place…so virtually no measurable lack of fork oil. A few drops of oil can appear like a multitude over time.
The oil within the decrease slider leg is just not going via any orifices or shim stacks, so the load of the oil is just not essential…it is simply there to lubricate the stanchions on the sliding information parts within the leg…so 10W fork oil is ok…use 7.5W if that is all you’ve gotten.
I used the Movement Professional 08-0551 bearing driver to drive the decrease seal squarely to the spacer ring within the decrease fork. It solely took about 4 gentle hits with a hammer to drive it dwelling. The brand new OEM seal comes pre lubed and the wiper seal simply presses into the highest of the decrease fork tube.
Sliding the higher shiny tube into the brand new seals is straightforward and wishes no instruments or particular process with the vent screw nonetheless out. When the higher fork slider is up within the prime fork bracket subsequent to the deal with bar, you put in a brand new prime nut holding the slider to a torque of 40Nm, you then exchange the vent screw with a brand new O ring.
Since I solely was engaged on the RH fork, the LH fork tube is the alignment reference with the Fast Launch Axle shaft between the two for setting the place within the decrease clamp.
It directions have been VERY particular about torquing the two essential pinch bolts in alternating vogue 3 instances every to 19Nm.
There was by no means any degraded efficiency with the annoying small oil leak on this fork tube, however I used to be uninterested in seeing some oil and never understanding if it was a drop or a extra severe leak.
This was a few hours properly spent, I would had sufficient of wiping down the fork on the finish of every day of driving to see if it was getting worse…as a result of I knew it was not going to get higher on it is personal.
Hope that is what you have been on the lookout for.
