Bbs rs2

[supremeKEN94]

Hey built a set of bbs rs2's and the hidden valve stems I've purchased have a slow air leak, is there a way to repair them without separating the wheels again?


IG: keepcalmitsken

[zoo]

Factory BBS RS2? What valve stems are you using currently?
Edit: I got schooled

[KyleAnderson]

Yes, they can be repaired without removing the face.

First, find the source of the leak with some soapy water. If it's the valve core, just replace it. It's a standard size. If you see bubbles around the outside of the bolt, you'll have to remove it.

They're usually an 8mm triple square, but I also ended up with one that's 10mm triple square (and it sucks because it's easier to strip out). Take it out, clean the threads, and replace the O-ring. It'll be a metric size. For extra assurance you should seal the threads. Because the valve is also an assembly bolt it needs thread locker too. Loctite 545 is a correct selection; a medium strength thread locker with sealant for course threads. Assembly torque is 21 ft-lbs.

If for some reason you end up buying a new valve, don't buy the style shown in zoo's link with the external hex. Those are for different wheels. You won't be able to get a socket on it with an RSII. You need one with an internal triple square drive.

[supremeKEN94]

these are the ones I've purchased, they sit in between the face and the barrel.


IG: keepcalmitsken

[supremeKEN94]

sorry for the late reply yal, for some reason I get no notification when I get replies on my posts -.-


IG: keepcalmitsken

[KyleAnderson]

these are the ones I've purchased, they sit in between the face and the barrel.


IG: keepcalmitsken

Those are filler extensions, not the valve.

This is the valve:

[supremeKEN94]

oh whoops, so how do I go about fixing my problem bro?


IG: keepcalmitsken

[KyleAnderson]

oh whoops, so how do I go about fixing my problem bro?


IG: keepcalmitsken

...read my first post in the thread?

tl;dr:
Take it out and replace the O-ring and seal the threads.

[xLIxPunk]

Bumping this thread. Rebuilding RSii's now. What kind of sealant should be used on the valve stem. Built four of them 3 have no leaks without sealant and one has a bad leak. Tried welding and tapping and still no luck. Gonna try some of this sealant with a new barrel for safe measures.

[KyleAnderson]

Bumping this thread. Rebuilding RSii's now. What kind of sealant should be used on the valve stem. Built four of them 3 have no leaks without sealant and one has a bad leak. Tried welding and tapping and still no luck. Gonna try some of this sealant with a new barrel for safe measures.

Read my first post in this thread. I list a suitable sealant+threadlocker.

[xLIxPunk]

Read my first post in this thread. I list a suitable sealant+threadlocker.

I bought this,

http://www.all-spec.com/Catalog/Adhesives-Sealants-Tapes/Sealants/General-Purpose-Sealants/59235-38794?gclid=Cj0KCQjw7pHLBRDqARIsAFyKPa5d16rf5xsea-bAbmhBCUeqLLSugN4sb38g88NuvfdkaI1ezBKBTnkaAlzEEALw_wcB

Would that be suitable or should I buy loctite 545 like you mentioned.

[KyleAnderson]

It'll probably work fine to seal the leak, and you'll probably never have any issues if it's torqued to the right spec. It's best to use a sealer and threadlocker for these, since RSII (and similar) have so few assembly bolts.