Hi All,
I had a mechanic replace the air compressor piston ring, and not long after the compressor started constantly coming on, it also developed a loud vibration when running.
I managed to get the car up on a hoist and found one of the mounting nuts was loose. I tightened it up and the vibration went away. However, after removing the compressor today myself to take a look at why it is constantly coming on, I noticed things don't seem correct with the mounting system and I'm unsure how to assemble it again. It appears mounting parts are missing from previous jobs. I only have 5 metal bushes, 2 springs and 1 rubber bush. The workshop manual shows there should be 6 metal bushes, 3 springs and 3 rubber bushes.
I don't want to install it just to find it starts vibrating again, I would rather do the job properly the first time. Any help would be much appreciated.

Thanks.

 

It is what it looks like, one (half) metal bushing, two rubber bushings and one spring are missing.

Fritz

 

A quick update. I've had to install the existing parts back as they were previously, after installing a new piston ring. After getting the compressor installed and the nuts back on, I went to torq the nuts down to 15ft-lb and one of the threaded studs on the mounting bracket snapped , so now I need a new bracket, as the compressor is vibrating like mad. I could probably cut the stud and add washers to reduce the vibration, but I still wouldn't have the rubber bush or one of the metal bush on that stud, as it is shortened too much. I'll have to redo the entire job now, what a PITA!!

On the bright side, the air suspension fault light on the dash has decided to disappear . One step forward, 2 steps back.