Anyone rebuilt Gen 2 shocks

[Jhollowell]

Posting here because i don't have faith in anyone answering in the gen 2 forum.

I've rebuilt a few gen 1 shocks and just started my first gen 2 (non live valve) set today and had a few questions. I thought they'd be similar to the Gen 1s but i'm finding some key differences.

Rear Shocks
1. The IFP does not have a threaded hole so the only way to remove it, is to remove the reservoir tube and push it out the bottom. Can you clamp the end cap and use a strap wrench to spin the tube? Or do you clamp the tube and try to spin the end cap? Both ways will be very challenging. I wouldn't have expected it to be so difficult to remove the IFP.
2. With no way to push or pull the IFP how to you bleed the system after adding fluid? On the Gen 1s you would thread a rod into the IFP and work it up and down to remove any air pockets. Also you would set the height about 1/4" from the bottom after working out the air bubbles. There doesn't seem to be a way to do this on the Gen 2s.

Anyone have any insights or care to share any secrets?

 

[TAC71]

Ill start with ... I have not done these shocks.... have only done Gen 1s

Looks to me... discharge shock ( should be done already) Push floating piston down and remove retaining clip. Put some rags into shock to protect piston. Use a blow gun into charge port of reservoir to blow out piston.

 

[Jhollowell]

That works on the front shocks but the rears are about the same as gen 1s I had to unscrew the tube and push it out the end. Took a lot of heat and a lot of force to loosen it. Seems like a bad design to remove the IFP

 

[kocher93]

I'll go second here. I've done Gen 1s, King 3.0s on my dodge and some Fox 2.0s.

Personally I'd assume that IFP is in backwards, but I can't tell from the photos if that's a flat surface or concave. 1/4-20 thread has been standard on all the shocks I've done.

However, I've never cracked into a Gen 2 shock so I can't tell you for certain.

Also was that the depth that thing was at or did you push it down? Looks like that thing could of been slamming on top out.

EDIT: Just went through Kartek's Fox parts, there are non threaded IFPs. Here is a link to a threaded IFP for a 2.5 aluminum Resi → https://www.kartek.com/parts/fox-80...ing-piston-includes-o-ring-and-wear-band.html

 

[Jhollowell]

It’s the flat surface and no threaded hole on the other side so no way to get it out without taking the tube off. Also no way to accurately set the height.

 

[kocher93]

Can you throw the body back on it and pop it out with a compressor?

 

[Jhollowell]

You can't use compressed air since you're looking at the piston through the hole where the valve would be. You have to remove the tube to get it out.

I'll try to video the next one i do since there are no videos out there of anyone tearing a gen 2 shock apart. Maybe someone will see something i don't.

This one isn't charged yet but you can see there is no way to blow the piston out.

 

[kocher93]

This is what I'm saying, grab a piece of something (Green Block in ghetto paint photo) and a blowgun and shoot that thing out.

 

[Jhollowell]

Maybe I’ll try that on the next one. I’d have to remove the shaft and reinstall the top cap to keep the body on. Should make for a good video at the least

 

[Derek50]

Sorry to revive an old thread but curious if anyone figured this out?

Also, the shaft cap looks like it is in two pieces, only the outer ring needs removed to get the shaft out, right?