Should have left well enough alone (EAS)?

[ytt105]

My 2000 P38 has 200k kms on it and the only problem I've had with the EAS is it would drop its bum if left for a couple of days.
As its only the rear and the auto level 'feature' is off, I've assumed it has to be a slight leak in the valve block, not the bags.
So, armed with a goddies bag from Paul I decided to redo the o rings and redo the compressor. Preventive maintenance at its best.

Well now it drops its bum in a couple of hours and the compressor probably needs to be replaced!

Nothing looked bad inside the block and I 'filed' the plunger ends and replaced the diaphragm.

The compressor. Well I managed to break one of the screws holding the end plate/bracket on, so now it only has two screws not three.
Also, I was unable to get the con rod out of the pump so fitted the new seal 'in situ'. However, obviously I didn't get the clamp ring on fully as after operating well for a couple of minutes it 'failed to pump' and a re inspection showed the clamp and seal had come off!
I've reinstalled the seal and it now pumps as it should, but for how long.

So my questions are;

what is the common link inside the block for just the rear bags themselves.
do I repair the existing compressor by drilling out and bolting the end plate and buy a new cylinder/piston kit or
upgrade to a larger compressor (Thomas 337?)

[wayneg]

The alen head bolt holding the conrod on can be very tight so you need a good alen key with plenty of leverage to get it loose. Hopefully you did not leave any burrs on the seal ring or you will very soon get a nice score in the cylinder wall.
To be honest I have had it with the original pump and if ever the need arises to fix or replace mine this is what I will buy and hopefully get to fit nicely...
These pumps are being sold by American Air Ride companies and they are stating are better than Viair. 100% duty Cycle and an impressive blow.

$30 off per $300 order Free shipping! DC12V Mini air compressor, Suspension air compressor! New design-in Pumps from Automobiles & Motorcycles on Aliexpress.com (http://www.aliexpress.com/item/Free-shipping-DC12V-Mini-air-compressor-Suspension-air-compressor-New-design/567505827.html)

[ytt105]

I've found a bit of info on these.
They do look good and only $150 ea, only $114 if you order 3 or more, delivered to OZ.
I'm going to look at the measurements tomorrow and see if it could fit.

[PaulP38a]

Looks alot like the Viair compressor I bought a while back. No way will it fit in the existing EAS box, and there will be some mucking about to get air line adapters right.

Trevor - I should be home on Sunday (assuming the Toyo :eek: I pick up on Saturday gets me back from Sydney ok) if you want to come over and measure up the Thomas and Viair compressors.