Jump to content
SAU Community

Recommended Posts

Alot of the blokes I work with ride bikes and rebulding/revalving shocks seems to be a standard every day thing for them, they continously have shocks at work that their rebuilding and it doesn't seem all that hard, how come it seems to be almost black magic when it comes to doing it for cars? I don't have a huge understanding of it all yet and neither do some of them, they just say yeh we get the specs for valving/spring rates for our weight and bike of the internet and just do it.....

Now in trying to understand how all this works I am presuming there has to be some sort of relationship between spring rates and valving? I have always wondered when you buy these cheap chinese coilovers and they offer multiple spring rates for the same shock how well does that work?

koni's can be done in your shed eaily from what I know, Bilsteins require gas, so not as cheap/easy to do.

Most (push)bike forks are like a Koni, oil only, or with pressurised air provided by a hand pump.

it sounds like you are in a position to give it a shot, grab a cheap set of bilsteins etc in need of a rebuild to play with, and go from there IMO. Do some reading, learn from those around you etc. Assuming you have a shock dyno?

  • 1 month later...
Alot of the blokes I work with ride bikes and rebulding/revalving shocks seems to be a standard every day thing for them, they continously have shocks at work that their rebuilding and it doesn't seem all that hard, how come it seems to be almost black magic when it comes to doing it for cars? I don't have a huge understanding of it all yet and neither do some of them, they just say yeh we get the specs for valving/spring rates for our weight and bike of the internet and just do it.....

Now in trying to understand how all this works I am presuming there has to be some sort of relationship between spring rates and valving? I have always wondered when you buy these cheap chinese coilovers and they offer multiple spring rates for the same shock how well does that work?

Shocks are there to control the springs. If you have a stiffer spring, you need more damping to control it. That's my basic understanding of it all. I have found this pretty simple, but helpful detail on some 'home style' rebuild on a Bilstein monotube shock:

http://www.honda-tech.com/showthread.php?t=2415915

I'm trying to reserach and learn as much as i can about it as i really want to increase my knowledge of it all, but as you say, it seems to be a bit of a black art and sometimes the specialist tools required can make things harder.

I also found seraching on youtube for shock rebuild videos came in very handy for a wide variety of different types of shocks. One person on youtube has over 700 videos of just shock rebuilds, mainly for ohlins motorbike shocks.

  • 1 year later...

Digging up an old one. Anyone out their who has rebuilt some Bilsteins? I have seen a DUI thread and it doesn't seem all to difficult, only problem being regassing them which I have a found a bike shop that would do it (I think).

I have an old set hear I picked up for cheap that I was going to muck around with, anyone want to give me some tips?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • It would be different if the sealant hadn't started to peel up with gaps in the glue about ~6cm and bigger in some areas. I would much prefer not having to do the work take them off the car . However, the filler the owner put in the roof rack mount cavities has shrunk and begun to crack on the rail delete panels. I cant trust that to hold off moisture ingress especially where I live. Not only that but I have faded paint on as well as on either side of these panels, so they would need to come off to give the roofline a proper respray. My goal is to get in there and put a healthy amount of epoxy instead of panel filler/bog and potentially skin with carbon fiber. I have 2 spare rolls from an old motorcycle fairing project from a few years back and I think it'd be a nice touch on a black stag.  I've seen some threads where people replace their roof rack delete with a welded in sheet metal part. But has anyone re-worked the roof rails themselves? It seems like there is a lot of volume there to add in some threads and maybe a keyway for a quick(er) release roof rack system. Not afraid to mill something out if I have to. It would be cool to have a cross bar only setup. That way I can keep the sleek roofline that would accept a couple bolts to gain back that extra utility  3D print some snazzy covers to hide the threaded section to be thorough and keep things covered when not using the rack. 
    • Probably not. A workshop grade scantool is my go to for proper Consult interrogation. Any workshop grade tool should do it. Just go to a workshop.
    • In my head it does make sense to be a fuel problem since that is what I touched when cleaning the system. When I was testing with the fuel pressure gauge, the pressure was constantly 2.5 bar with the FPR vacuum removed. When stalling, the pressure was going up to 3.0 bar (which is how it should be on ignition).
    • ECUtalk pages don't mention they support the ABS computer (consult port has more than one CAN), so you might just need a different scan tool. But, I would expect ABS is a different light to the brake warning/handbrake light, do you see an ABS light come on for a few seconds when you turn the key from ACC to IGN? But since you said: I'd have a look at the ABS sensors in the rear hubs to make sure they are not damaged, disconnected etc.
    • OK, if it idles at 1000+ with the AAC, its not an idle airflow problem. The cold start valve just gives extra air when the engine is cold, but you have enough air without it to idle at 1000. I think you are back to a fuel problem, sorry. Can you see the fuel pressure staying constant or does it drop as the revs drop to a stall?  
×
×
  • Create New...