Fox
Vanilla Fork 130R Service So
just how do you service the Fox Vanilla 130R fork? The fork has been sitting unused
in the garage for a few months whilst I try to work this out. If
you google Fox Vanilla Fork service you either get recommended to use TF Tuned
forks (very good reports all round) or send them to Mojo. But there is no guidance
for the budding mechanic or skinflint such as myself. Even the pages on the FoxShox
site seem to have been removed. But
seriously, one of the main reasons for not sending these off for a service is
that I have spotted the dreaded stanchion wear on one side. This section of the
stanchion was hidden behind the fork brace right where all the grit and grime
collects. TFT
and Mojo would no doubt be able to replace the stanchion but I knew that it would
cost me dear. So
after chatting to Huey on our Saturday ride I thought it was worth dismantling
the fork just to see how easy it was to service. If I couldn't service it or re-assemble
the pieces then nothing was lost as it's not working anyway and I could then reconsider
sending it off to TFT for work. So
of course I thought it was worth committing to the internet for your guidance.
Caution: This is for the 130R only; I have no idea if the 130RL or 130RLC are
any different once you take the spanner to them. - Take
a photo of the fork to remind yourself how it all goes back together - so that's
the pink cap (rebound) on the right and blue (pre-load) on the left
- Look's
pretty simple at the bottom of the fork
- Unscrew
the pre-load cap anti-clockwise using a socket wrench or a wide mouthed spanner.
This is a small part and will come straight out. Remove the plastic spacer that
sits on top of the spring and remove the spring too. Unscrew the rebound cap anti-clockwise
but this will stay in the fork as this is one long unit. Find an oil pan or similar
receptacle and drain the oil out of both sides of the fork. You will need to 'pump'
the long rebound rod to remove oil that is inside this.
- Unscrew
the nuts at the bottom of each fork leg. Be careful to keep the small black nylon
crush washers that are either inside the nut or stuck onto the bottom of the fork.
You can then pull the rebound rod out as this was secured by the nut. A smaller
rod that supported the spring will also come out of the pre-load side. you will
now also be able to pull the stanchions out of the fork lowers
- Your
once expensive piece of suspension is now just a jumble of metal rods and springs
- Uh-oh!
There's the stanchion wear
- Use
a degreaser to remove the grease and crud that has built up both outside and inside
the stanchions and fork lowers as well as the rods and springs.
- Degreased
pieces of fork now ready for re-assembly
- Gently
insert the stanchions into the fork lowers taking care not to damage the seals
you have just carefully cleaned. They should slide in easily.
- Insert
the long rebound rod into the left stanchion
- Locate
the rebound rod in the stanchion so that the bolt emerges through the bottom of
the fork lower. Push the black nylon crush washer onto the bolt and then add the
nut and tighten.
- Slide
the smaller rod into the right hand stanchion. It is much shorter than the stanchion
so you need to move the lower around until the bolt emerges through the bottom
of the fork lower. Put the spring back into the stanchion too and push down on
the spring while you push the black nylon crush washer onto the bottom of the
rod and then tighten the nut.
- Measue
between 30-50cc of the new 7.5wt. fork oil into a measuring jug. Pour it into
the pre-load side (with the blue cap) first and then replace and tighten the blue
cap. This will prevent the stanchions sliding down inside the fork lowers and
spilling all your carefully measured oil
- Measure
155cc of oil (or a smidgeon more to take account of the oil that will get left
in the jug) and pour into the left hand side. This is a bit more tricky as the
top of the rebound rod will be in the way. Then push down gently on the pink cap
and tighten into place.
- The
serviced forks. No leaks apparent even though I used the same seals but I need
to take these out for a test ride to confirm that the top seals/wipers are working
okay.
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