Really? I drive 2 hours to help to get accused of not knowing how to put washers on a sodding air compressor.. thanks.

FYI I took the nuts and washers off in order and kept them together, up the same way as they came off the vehicle.

Morat,
It could be the vibration rubbers. They are new, and the correct part number, but if I'm honest, I'm not sold on them being better than the originals all the time.

If you want, I can pop the old ones off the old compressor and post them up to you, so you can try swapping them over if you like?

I was only joking honest, I figured you'd know which way and would probably have just lifted the washers and nuts off in one go. That way it's damn near impossible to get them wrong. I did wonder if you'd replaced the rubber mounts when you refurbed the compressor as my local indie reckoned the replacements aren't as supple as the originals were.

Fiddle a bit with the tightness of the three nuts while compressor is running, turn them a quarter of a turn loose (or tight) and notice the difference in resonance.
For me it helped.
Tony.

Could be the EAS lid. Mine was vibrating and made more noise than the compressor. Little bit of foam wedged under the lip tightened it down.

Guys! I'm not complaining about the sound of the pump . I'm bloody glad I've got one that runs!

No I'm just saying that now I can hear it I'm agreeing with OB that it might be running too much and that is what lead to the previous one failing.

It isn't loud it's just noticeable

My blue one still has the cupped washers on upside down from the time I rebuilt it. I've sort of got used to the comforting clatter of the pump and its cured my pump paranoia of thinking the pump's running too much/ not enough/ at the wrong times.
I kind of miss it on the black one.

1hr left to get home. I'm in the passenger seat now

Aircon perfect
Heated seat on
EAS pumped up

All thanks to Marty 😀

Oh and she's getting 》3 miles per litre on the motorway so that's encouraging too....

Morat wrote:

1hr left to get home. I'm in the passenger seat now

---

Bloody hell, you've got a lot of faith in your Cruise Control, Morat

I've never called her that before... not sure I'm going to try :)

Haha :)

I have new mountings on my compressor and which ever way up I put them, I can at times hear the pump. Usually while stationary with the radio off. I've stopped worrying about it. I hear enough other strange noises.

My front bags are however leaking it seems. So I guess its time to pop the spares on.

If you need any spares, the BECM Doctor has a sale on at the moment. Only $300 for a set of used Dunlops (http://www.becmdoctor.com/product-p/p02dlu.htm). He's having a bloody laugh......

And according to his post on the other forum, he's having an EAS Blowout sale too..

I've stripped Miles' old compressor down, and it's totally toast. In fact, I would recommend doing a valve block rebuild job sooner, rather than later too...

That compressor is pretty much unrebuildable unfortunately - but I'm more worried by the fact that the outlet chamber in the head has all that brass swarf in it - which means that chances are there's a load of it that's gone into the valve block. With any luck it's only through the first bit/diaphragm solenoid area and then been caught in the EAS dryer, and not passed through that into the inlet side of the VB.

Either way, I think it's worth investigating....

Blimey, not surprising it was making a bit of a racket, where's the brass come from? Motor bearing?

It appears that Dunlop (believe it or not they aren't the OEM for the compressor!) in their wisdom used brass for the flywheel/weight on the compressor piston arm.

It has been ground out on the center and it looks like the back side of it in the middle too, and those shavings have gone everywhere.

I haven't worked out what caused the failure - whether it was a loose grub screw which then caused the motor to spin, catch it, get off balance etc. Or whether it happened from the other side. The armature has a couple of big lumps of resin on it - which I've never seem on one before - whether it was to try and balance it from the factory, who knows - but if it's actually caused it to run off balance, then it will have work the front bearing (which there is some play in) and the possibly vibrated the grub screw loose, and gouged out the brass.

The armature has also been scraping against the magnets in the body of the motor, hence all the black shavings in the last couple of pictures... either way - it's properly knackered

Who were the OEM compressor manufacturer then Marty?
I'd always worked on the premise that the yellow Dunlop badged one's were the better quality as opposed to the white label ones.

The original compressors were made by Thomas Pumps in the USA

Apparently they are a slightly modified Thomas 315 compressor.

Dunlop, whilst they appear to be the OEM for the valve block, air springs and maybe driver pack, are actually an aftermarket manufacturer/supplier of air compressors.

Thanks Marty- I'll have a look through my box of "waiting for refurb or something" ones and see if I've got any Thomas's. Any distinguishing features?
It appears the Thomas 315 in its native form was a little under specified for the P38, even when new:

There seem to be various versions of the 315 Compressor.

The P38 one appears to be a variant of the 315CDC56/12 which is rated to 150psi. Though interestingly the datasheet I found shows it as being a 15% duty cycle... though that does have a '*' by it with the note that this varies by application.

Distinguishing features? It's a standard P38 compressor... your Blue P38 probably has one, unless it's been changed for a Dunlop before - likewise with the Vogue SE - they never shipped from the factory with a Dunlop compressor, so if there's one in there then they are aftermarket. They seem to be all-black in colour, where the Dunlop version appears to be a silver piston block, and a black motor casing.

Interestingly Morat's failed one has a date stamp on the sticker of 03/14.. so it's only a few years old too.

The joy never ends...

But thanks for the thorough post-mortem and heads up, Marty. The failure was sudden whatever the cause. It was, subjectively, no louder than the ABS pump when it was fine. Then, at the end of a three hour drive, it activated just as we parked up and it was suddenly loud.

Valve block rebuild eh? TO THE GOOGLES!!!11111
I'm not going to trust the EAS until it is sorted :(

It's easy really :)

I'm still running around with the one from Marty's 98 from summer camp, but as that's now missing an engine, and in fact pretty much everything from the engine bay, I think I'll be okay keeping it warm for a bit longer yet :) Must get around to rebuilding the couple I have floating about.