GEN 1 Quick question factory fox shocks

[Jhollowell]

I'm not sure thats 100% correct. I never took physics nor am i a suspension expert but from what i understand one side of the IFP is 100% fluid and the other side is 100% gas. Gas compresses, fluid does not. In its free state (not on the truck) the shaft should be fully extended and no empty space in the fluid portion of the shock. As soon as you compress the shock and the shaft moves into that chamber it displaces the fluid and the only place for it to go is into the IFP chamber so the IFP should move as the shaft moves, regardless of speed. Again, i could be wrong but thats how i understand it. An easy experiment would be to rebuild a rear shock, charge it to 200psi and leave the gauge on and install it on the truck and see if the pressure changes when you take it off the jack stands. Maybe I'll do that when i install my bump stop kit.

 

[Gumby]

I just built mine last weekend set them a 210 so this will be easy. To test.
wheel off the ground 210 Psi

Wheel on the ground

I would call it 230 psi so I was wrong @Jhollowell is correct. and there is your number for setting on the ground for the front. I didn't rebuild Bozz Or Mwait09 shocks they were done hammer and Texas shock works. Bozz is running hammer still and mwite09 is running mine currently.
I told you he was smarter than me. LOL

 

[Bozz]

I just built mine last weekend set them a 210 so this will be easy. To test.
wheel off the ground 210 Psi
View attachment 453046
Wheel on the ground
View attachment 453045
I would call it 230 psi so I was wrong @Jhollowell is correct. and there is your number for setting on the ground for the front. I didn't rebuild Bozz Or Mwait09 shocks they were done hammer and Texas shock works. Bozz is running hammer still and mwite09 is running mine currently.
I told you he was smarter than me. LOL

Mine were set at 250psi when I got them redone a year ago. @Gumby put a guage on them a week or two ago and they were still at 250psi. I've done tons of off-roading, sand dunes, road driving, etc.

 

[Nesc204]

The guy that serviced mine set them 170 on my Gen 1. He told me was perfect setting cause it saves wear and tear on other suspension components like ball joints. Told me it was from testing they did. Could be wrong and argumentative but it sure does ride nice. I'm thinking about bumping them up a bit

 

[BenBB]

The guy that serviced mine set them 170 on my Gen 1. He told me was perfect setting cause it saves wear and tear on other suspension components like ball joints. Told me it was from testing they did. Could be wrong and argumentative but it sure does ride nice. I'm thinking about bumping them up a bit

Probably the same reason they came from the factory at bottom perch instead of mid perch, cushier ride and most people aren't pushing it hard offroad frequently (I'm just as guilty there heh).

 

[Nesc204]

Probably the same reason they came from the factory at bottom perch instead of mid perch, cushier ride and most people aren't pushing it hard offroad frequently (I'm just as guilty there heh).

I'm at Mid Pirch. He told me it was a DOT thing that set the bumper height. Mid Perch was what what it was originally designed to sit

 

[PapaT]

Can anyone tell me why after rebuilding the rear shocks “Gen 1”. Psi set at 240. I am able to stroke the shock by hand. Not quickly, but can be done without a whole lot of pressure, maybe 50-75 pounds. Also it returns slowly to full extension. Obviously something is wrong but I’m stumped. I bled them for hours to be sure all air was out. Can someone please give a some advice on what’s wrong. TIA

 

[Jhollowell]

Can anyone tell me why after rebuilding the rear shocks “Gen 1”. Psi set at 240. I am able to stroke the shock by hand. Not quickly, but can be done without a whole lot of pressure, maybe 50-75 pounds. Also it returns slowly to full extension. Obviously something is wrong but I’m stumped. I bled them for hours to be sure all air was out. Can someone please give a some advice on what’s wrong. TIA

If you can cycle the shock, then there is air in the main chamber. I assume you cycled the IFP until no bubbles came up in the main chamber? This is my sequence and has worked pretty well. Chances are the IFP is bottomed and not purging all the air from the main chamber.

1. install the IFP and push all the way down. make sure you can feel/hear it bottom out.
2. pour in 28oz of fluid in main chamber. (can be slightly more, but no less)
3. Cycle the IFP several times very slowly and only an inch or so. make sure you don't hear a sucking noise when pulling it up. (if you go too fast it will suck in air)
4. Once there are no bubbles, slowly pull the IFP up a few inches. It doesn't matter how high you pull it up, as long as you filled the main chamber with 28oz.
5. Install the shaft and top cap in the fully extended position with bleed screws open.
6. charge the shock to 200psi
7. wait till no bubbles are coming out the bleed screws.
8. close bleed screws
9. should be good to go.

 

[Gumby]

This^^^^^^ You have air for sure.