Re: UrQ bomb replacement

[steveb@falcon.kla.com (Steven Buchholz)]

> Does one need to remove the whole PA/valve assembly from
> the car before removing the pressure accumulator from the
> body or can you just unscrew it ? It looks like there is the
> chance of destroying the rubber vibration "feet" on the unit.If I
> do have to remove it am I going to need to drain the brake
> fluid reservoir or are the lines to the PA just full of air? Any
> help would be appreciated.
> 
IME, all I had to do was to unscrew the bomb.  The tool that finally 
got the job done was a strap type oil filter wrench.  You don't need 
to drain the system, but you do need to depress the brake pedal 20+ 
times to relieve all of the system pressure.  The bomb *was* full of 
compressed nitrogen when it was new, but since you need to replace it 
that means it is now full of compressed ATF!  ;-)

Of course my bomb was replaced a few years back, you might want to make
sure the pressure regulator is securely mounted to the car before you 
start torquing on it.

Steve Buchholz
s_buchho@kla.com
San Jose, CA (USA)