P38A Leaky airspring connection.

Flossie · Feb 15, 2024

Leak detector spray has shown all is air tight on the system except for the front offside collet. Now...its not leaking from where the pipe goes in but from around the outside of the collet itself. Dunlop spring btw, can I assume that replacing the two O rings in there will fix it? Springs look great otherwise. Can you even buy those O rings?

gstuart · Feb 15, 2024

Are these any help to u, apologises if there the wrong ones

Your Search Results >

britcar.com

As a side note I normally buy a set of O rings both imperial and metric, plus just a thought has the nut got a hairline crack in it

Have found in the past using some clear plumbers silicone grease has stopped air leaks

Hope it helps in a small way

419 PCS RUBBER O RING ORING SEAL PLUMBING GARAGE SET KIT 32 SIZES WITH CASE 4-34 | eBay

This is the perfect kit for all households and plumbers. 14pc - 21mm x 2.5mm. 10pc - 50mm x 3.5mm. 10pc - 47mm x 3.5mm. 10pc - 44mm x 3.5mm. 10pc - 41mm x 3.5mm. 10pc - 38mm x 3.5mm. 10pc - 36mm x 3.5mm.

www.ebay.co.uk

Flossie · Feb 15, 2024

Alright Gary!,
The link says 8mm (might be OD? But 6mm ID?) The lines are 6mm.

gstuart · Feb 15, 2024

Flossie said:
Alright Gary!,
The link says 8mm (might be OD? But 6mm ID?) The lines are 6mm.

Apologises, are these better plse

O Ring - 6MM - Air Pipe Collet - Air Suspension | RRC - RR P38

STC2766 - Britpart, Allmakes and Land Rover options for STC2766 O Ring - 6MM - Air Pipe Collet - Air Suspension | RRC - RR P38 - EXPRESS Shipping - UK, EU and Worldwide.

www.lrdirect.com

gstuart · Feb 15, 2024

These give sizes in case u can get them elsewhere cheaper

Your Search Results >

britcar.com

Datatek · Feb 15, 2024

Flossie said:
Leak detector spray has shown all is air tight on the system except for the front offside collet. Now...its not leaking from where the pipe goes in but from around the outside of the collet itself. Dunlop spring btw, can I assume that replacing the two O rings in there will fix it? Springs look great otherwise. Can you even buy those O rings?

If the inner O ring is damaged or the pipe is not fully home, the leak may well appear around the outside of the collet.

Flossie · Feb 15, 2024

Datatek said:
If the inner O ring is damaged or the pipe is not fully home, the leak may well appear around the outside of the collet.

The pipe is fully home although it seemed to seat a little easier than I would have liked considering how much of a shove they needed when I replaced both rear springs last year. Do you know if the collets lift out as they do in the valve block?

Datatek · Feb 15, 2024

Flossie said:
The pipe is fully home although it seemed to seat a little easier than I would have liked considering how much of a shove they needed when I replaced both rear springs last year. Do you know if the collets lift out as they do in the valve block?

Yes, you can pull the collets out.

Flossie · Feb 15, 2024

gstuart said:
Apologises, are these better plse

O Ring - 6MM - Air Pipe Collet - Air Suspension | RRC - RR P38

STC2766 - Britpart, Allmakes and Land Rover options for STC2766 O Ring - 6MM - Air Pipe Collet - Air Suspension | RRC - RR P38 - EXPRESS Shipping - UK, EU and Worldwide.

www.lrdirect.com

Ordered the allmakes ones, slightly more expensive than britpart but loads cheaper than genuine (40p ish each, £4 each ish genuine) had to order 10 for £4 odd but a fiver postage.

Grrrrrr · Feb 16, 2024

I'd be interested in how you get on. Gary can probably remember the name of the connectors (Voss?) but you can buy brass replacements on the Bay.

gstuart · Feb 16, 2024

Grrrrrr said:
I'd be interested in how you get on. Gary can probably remember the name of the connectors (Voss?) but you can buy brass replacements on the Bay.

Hi mate

Is this the connectors u mean as indeed replaced all my Voss connectors with these brass push fits rated at 80 bar , plus a lot cheaper than those Voss connectors

6mm x M10x1 Metric Thread 80 BAR High Pressure Brass Push Fit Straight Stud Fitting

6mm x M10x1 Metric Thread 80 BAR High Pressure Brass Push Fit Straight Stud Fitting ideal for air or auto lube systems also used on Air Ride suspension Systems on BMW Mercedes

www.advancedfluidsolutions.co.uk

Hers also a link for those Voss connectors

LR044836 6mm Voss Air Connector - Valve Blocks or Air Struts

LR044836 6mm Voss Air Connector - Valve Blocks or Air

www.advancedfactors.co.uk

Hope that helps

Flossie · Feb 16, 2024

I don't think p38 fittings screw in?
Although I haven't looked that close.

Datatek · Feb 16, 2024

Flossie said:
I don't think p38 fittings screw in?
Although I haven't looked that close.

The collets are push fit, not easy to pull out.

Grrrrrr · Feb 17, 2024

Flossie said:
I don't think p38 fittings screw in?
Although I haven't looked that close.

They don't but easy to tap as it is only plastic. Well, usually. Some are ally.

Datatek · Feb 17, 2024

Grrrrrr said:
They don't but easy to tap as it is only plastic. Well, usually. Some are ally.

All the collets on mine are brass.

Grrrrrr · Feb 17, 2024

Datatek said:
All the collets on mine are brass.

The bit it goes into, not the collet. Yours are Arnott. I think mine are too, although Arnott Gen. 3 have switched to some absolute barsteward ones that don't release and you have to unscrew it or cut the airline. I cannot recall what Dunlop were but I think they were steel.

Datatek · Feb 17, 2024

Grrrrrr said:
The bit it goes into, not the collet. Yours are Arnott. I think mine are too, although Arnott Gen. 3 have switched to some absolute barsteward ones that don't release and you have to unscrew it or cut the airline. I cannot recall what Dunlop were but I think they were steel.

I have Arnott's on one, Dunlop's on the other all with brass collets.

Flossie · Feb 17, 2024

Grrrrrr said:
They don't but easy to tap as it is only plastic. Well, usually. Some are ally.

That's interesting, could fit off the shelf 3/8 bsp -6mm push fits or olive type fitting compression. Got them on my 110 200tdi fuel system.
I was thinking of doing compression fittings to the valve block just cos I can.

Grrrrrr · Feb 20, 2024

Flossie said:
That's interesting, could fit off the shelf 3/8 bsp -6mm push fits or olive type fitting compression. Got them on my 110 200tdi fuel system.
I was thinking of doing compression fittings to the valve block just cos I can.

I'd guess they used push-fit because space is a bit tight, especially on the v8. The diesel has so much space by comparison.

pwood999 · Feb 20, 2024

Flossie said:
That's interesting, could fit off the shelf 3/8 bsp -6mm push fits or olive type fitting compression. Got them on my 110 200tdi fuel system.
I was thinking of doing compression fittings to the valve block just cos I can.

I did compression fittings on one of my valve blocks a while back. Zero airline leaks at the valve block & easy to disconnect & reconnect when required. On the other hand with good quality o-rings & collects they don't generally leak unless the airline ends are damaged.

Replacement genuine collets are available from JLR for £2.81 inc. vat.

P38A Leaky airspring connection.

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