Thread: EAS AMK compressor - which replacement

Check the dryer dessicant hasnt turned to powder, you might be lucky and get away with replacing it.

Originally Posted by loanrangie

Check the dryer dessicant hasnt turned to powder, you might be lucky and get away with replacing it.

Thx mate, checked that out and they are all solid beige balls, no dust or bits of ball and the top filter is relatively clean.

Make sure you purchase another original AMK, I originally purchased a Bearmach copy of an AMK and it only lasted 7mths (replaced under warranty which was a battle).

Purchased an original AMK form LrDirect no issues not worth saving the $. Got both from LrDirect quick delivery, however not good to deal with if you have a warranty issue

Originally Posted by tonys tank

Make sure you purchase another original AMK, I originally purchased a Bearmach copy of an AMK and it only lasted 7mths (replaced under warranty which was a battle).

Purchased an original AMK form LrDirect no issues not worth saving the $. Got both from LrDirect quick delivery, however not good to deal with if you have a warranty issue

thanks Tony, tried LRDirect but they currently have none in stock, waiting on a quote from Island 4x4 and a couple of other UK suppliers. Local quote was $1,600 + shipping

Interesting I took the compressor off again on Saturday and dismantled it again, put new desiccant in it and tried again, still no luck and faulting straightaway. I then applied a 12v battery directly to the compressor and it started up straight away, although the output with my calibration finger over the end didn't feel strong

I then installed it back temporarily into the car and was able to clear the faults but the car would not come up. Went into the calibration mode on the GAP tool and after numerous attempts managed to get the back up to height and for it to save. After more attempts I managed to get the front up but it was very slow compared to the rear which moved fairly quickly .

The car then did not fault again until yesterday afternoon, but only with the 'normal height only' message and the suspension height maintained.

Not sure what all of this means but I will be replacing it anyway as I now don't trust it.

regards
John

Originally Posted by XXVDisco

thanks Tony, tried LRDirect but they currently have none in stock, waiting on a quote from Island 4x4 and a couple of other UK suppliers. Local quote was $1,600 + shipping

Interesting I took the compressor off again on Saturday and dismantled it again, put new desiccant in it and tried again, still no luck and faulting straightaway. I then applied a 12v battery directly to the compressor and it started up straight away, although the output with my calibration finger over the end didn't feel strong

I then installed it back temporarily into the car and was able to clear the faults but the car would not come up. Went into the calibration mode on the GAP tool and after numerous attempts managed to get the back up to height and for it to save. After more attempts I managed to get the front up but it was very slow compared to the rear which moved fairly quickly .

The car then did not fault again until yesterday afternoon, but only with the 'normal height only' message and the suspension height maintained.

Not sure what all of this means but I will be replacing it anyway as I now don't trust it.

regards
John

Reading the above, I’d probably do the same. It sounds like a new compressor is on the cards

Sounds to me like the piston ring/seal is worn out.

Not sure if the AMK are serviceable as the Hitachi units are.

There are a few threads on here about rebuilding Hitachi compressors, im assuming the AMK design is similar.

A rebuild kit is ~160 AUD delivered, 1/10th the cost of a new unit

UPDATE. ok ordered an AMK compressor on Tuesday from Island 4x4 for ~$685 delivered, it arrived Friday morning.

i installed it last night, took around 90 minutes. Used the GAP tool to reset the faults and the calibration tool to set the heights. All good now the car raises quickly and quieter. Yet to take it for a drive as it was a late finish.

All in all happy with the result albeit poorer in the bank account.

A couple of notes should others have to go down this track
1) the mounts on the compressor come untapped and need a M6 * 1 tap
2) the pipe fittings to the dryer are slightly different to the ones I had but once you remove the original hose from the screw thread by push/pull it goes straight on.

I found removal and refit much easier the 2nd time, especially the bracket bolts by using a 10mm 1/4” socket and 2 100mm extension bars for the lower bolts. For the upper mount, Supercheap have a Toolpro 10mm ratchet spanned that’s longer than the ones I had and is perfect.

Thanks for the assistance from all

regards
John

Did you also use the GAP tool to apply the AMK compressor profile, or was it previously on AMK?