flat round thingd = "slow downs"
you are right about thier use. Screw them right in [clockwise i think
] to stop the car dropping [if its anti you wont harm anything].
note: if you hop at all closing them will cause back pressure when the car weight compresses the coils, this can help hopping BUT if you have the round type [brass] they wont handle the pressure and will pop!
accumulators are adjustable. if my memory is right your car was done in USA, in which case you may have a type that you will find hard to get recharged here [but I do happen to have a valve to suit!]. The US ones tend to have a valve [sits on top of the acc with a cap on it] that looks pretty much like a bicycle tyre valve] UK ones have a plastic cap on the top 25mm dia [ish] anad under that is the port for filling.
the principal is that you get too much pressure put in themn let it out to balance the weight of the car [corner].
if you have UK ones 'phone around industrial Hydraulic outlets say "i want my bladder accunulators recharging to 40 bar please"
they will answer " [intake of breath as a builder would when you show him the problem] " you'll need a new one mate the bladder must be gone" [this way they can sell you a new one!!]
you answer "no, its OK just that i have let too much pressure out of it so it needs topping up"
if its the US type let me know though tbh I thnik i have the only valve in UK so you'd have to but it and have acess to a nitrogen bottle long term so you may be better swapping them for K type].
To adjust them.
lift the car to above normal driving height.
drop to to normal driving height.
crack the bleed screw [allen key in UK type, just press the centre if the valve n US type] CAREFULLY.
allow enough gas out so that the corner [or end] in question drops by 20mm.
repeat for all corners [ends].
That should have balanced the weight of the car with the gas pressure in the acc.
if its still a bit stiff [the ride] you cana risk doing it once more dropping by 10mm but any more and you'll be too low on pressure again.
