Help with stuck bolt on my Yeti SB150

bergsnj

Well-Known Member
I'm trying to remove the shock on my yeti SB150 and the wedge bolt that goes inside the collet bolt is stuck. Really stuck. I broke (2) 4mm hex sockets trying to get this thing out. Anyone have any advice on getting it out? I'm soaking it in PB blaster but damn. I'm starting to get nervous that I'm just going to strip it. I'm also going to try to heat the wedge bolt with a soldering iron.

This is the 4mm wedge bolt that is stuck:
wedge bolt.jpg


And this is the collet bolt that it is stuck inside:
collet axle.jpg
 
Last edited:
I'm trying to remove the shock on my yeti SB150 and the wedge bolt that goes inside the collet bolt is stuck. Really stuck. I broke (2) 4mm hex sockets trying to get this thing out. Anyone have any advice on getting it out? I'm soaking it in PB blaster but damn. I'm starting to get nervous that I'm just going to strip it. I'm also going to try to heat the wedge bolt with a soldering iron.

This is the 4mm wedge bolt that is stuck:
View attachment 177608

And this is the collet bolt that it is stuck inside:
View attachment 177609
any chance you can remove it here and work on it off bike?

wedge bolt.jpg
 
I’m no help here. But this is why when I get a new bike I take all the linkage apart, grease / loctite / and then torque to spec. I don’t trust the people assembling bikes.
 
No fail: do what Pete said; mount in vise, center punch, drill out head down to threads, remove head/replace pivot hardware (the main screw may be salvageable).

Screwing (hah) with it method: hold a soldering iron to head for 30-40 seconds (until hot enough that sprayed water steams). Wait 1 minute, then re-apply (you are trying to heat up the surrounding screw, which will expand more than the center will). Place a 4mm impact (Wera makes a diamond coated model--excellent choice) in stubby impact gun, and let it rip. It's either going to come out, or it's going to decide your removal process for you.
 
First,Take everything off the frame, then build a big fire in a fire pit and place the frame in the fire. After all that useless carbon burns off you can grab the bolts with some vise grips….the heat will also help brake the bolts loose….😉:Ugh:
 
No fail: do what Pete said; mount in vise, center punch, drill out head down to threads, remove head/replace pivot hardware (the main screw may be salvageable).

Screwing (hah) with it method: hold a soldering iron to head for 30-40 seconds (until hot enough that sprayed water steams). Wait 1 minute, then re-apply (you are trying to heat up the surrounding screw, which will expand more than the center will). Place a 4mm impact (Wera makes a diamond coated model--excellent choice) in stubby impact gun, and let it rip. It's either going to come out, or it's going to decide your removal process for you.
If they used red loctite heat may also help to release when applied to the collet bolt.
 
Got it out! Had to get it in the vice and heat the bolt with the soldering iron. Then used an impact hex socket. Now that i have this bike in pieces i’ll install the frame bearing kit that i have sitting around while i send the shock out
47356F66-CF1D-4388-9240-2DBB0C98DA6C.jpeg
 
I would order a spare set of those bolts if they are in stock. Better to have as a spare when you need it then them not being available.
 
Cool
Got it out! Had to get it in the vice and heat the bolt with the soldering iron. Then used an impact hex socket. Now that i have this bike in pieces i’ll install the frame bearing kit that i have sitting around while i send the shock out


Cool, I like the fire pit method more but glad you got it.
 
This doesn’t excuse you from getting a new bike.

Amiright everyone?
Wel this bike will have all new frame bearings, wheel bearings and serviced suspension. The idea was to make it close to new for this season but that stumpjumper evo has my attention
 
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