flat accumulators

[raulr903]

i have a 1991Q45a and my accumulators are flat , does anybody knows what kind of nitrogen has , i need to recharge them all 9 of them , has anyone has done it them selfs , how much nitrogen gets charge into each accumulator,i would like to do it my self if its possible but another thing is that i don't know if any of my accumulators has a leak which have no clue how to test them.

[ScottJackson]

Greetings from a fellow Iowan. On my active Q, I just used cheap tank valves. They're like tire air stems but all metal and have 1/4" NPT threads on the end. I drilled the end of the accumulators and tapped them with the right tap. I cleaned them out thoroughly before putting the valve in with some lock-tite. If you do a search in the archives, you should find a more detailed explanation.

Here:

zerothread?id=118519
Modified by ScottJackson at 4:12 AM 10/16/2007

[maxnix]

Recharging is not a DIY undertaking.

http://www.q45asuspension.com

Read all posts by TexasOil.

[raulr903]

thanks for the information scottjackson. but one more thing is how do i find out if the accumulator is empty for sure. is there a way to find out. my car rides like if has no suspension system at all, would this mean that they are flat.....

[maxnix]

thanks for the information scottjackson. but one more thing is how do i find out if the accumulator is empty for sure. is there a way to find out. my car rides like if has no suspension system at all, would this mean that they are flat.....

Yes, and there are 9 of them.

Don't use your car until you replace them or you will bend suspension components and do further damage to the active suspension.

[raulr903]

hey scottjackson i would like to call u and talk about some things that i still cannot figure out. if do send your # to [email protected]

[texasoil]

The operating pressures in the active suspension system are very high, and when driving on flat accumulators go well over 5000 psi over bumps.

Normal operating pressures exceed 2000 psi. 'Cheap' tank valves have low pressure,low cost valve cores which may fail explosively ( becoming a bullet) when the charging hose is removed.This is why I use only certified aircraft quality valves, purchased from aircraft parts supplier. I have good assurance they are not counterfeit parts from who knows where, made to who knows what specification with no Q/A.