P38A Range Rover P38 Valve Block Rebuild/

+1 on not using WD40. It will not bubble up.

The set I received from 4x4airseals has a small plastic bag with some liquid gel or Vaseline I would presume this is for the O-rings, yeah?

That is what I have used it for. Helps keep the O rings in place during assembly. Not strictly necessary though.

Googs said:

The set I received from 4x4airseals has a small plastic bag with some liquid gel or Vaseline I would presume this is for the O-rings, yeah?

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Like all applications of lube it is designed to reduce friction during assembly

It should be ok, as long as absolute minimum is used to hold the o-rings in place, and nothing more.

They only supply a vey small amount and on instructions he says just for assembly purpose, as little to be used.

Googs said:

They only supply a vey small amount and on instructions he says just for assembly purpose, as little to be used.

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Otherwise you get like a compressor I did the other day which was full of powdered sealant in everything.

Rubberknees said:

Otherwise you get like a compressor I did the other day which was full of powdered sealant in everything.

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That tends to be from the desiccant in the air-dryer breaking down if it is white powder.

Grrrrrr said:

That tends to be from the desiccant in the air-dryer breaking down if it is white powder.

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Definitely sealant its stuck all over. In the slots for O rings, between mating surfaces. You can feel the rubbery texture when it was peeled off. I changed air dryer for a brand new one 18mnths ago so would be disappointed if had started braking up by now

i have a 2002 vintage RR .....is there an air dryer on these or is that what you guy's call the compressor? asking for a friend

Googs said:

i have a 2002 vintage RR .....is there an air dryer on these or is that what you guy's call the compressor? asking for a friend

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If it's a P38, there is a dryer for the EAS, follow the air pipe going forward from the valve block to the black canister. Should be replaced at reasonable intervals or the desiccant breaks up and contaminates the valve block.

I don't see that so i'm guessing that my RR is a early L322....it's build date is 02 but Vin suggests that it's 03. huh

Googs said:

I don't see that so i'm guessing that my RR is a early L322....it's build date is 02 but Vin suggests that it's 03. huh

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Where is your compressor?
Under the spare wheel or in the engine bay.

The L322 has the drier connected directly to the compressor (under the spare).

J

Yep, under the spare tyre in the boot.....aah i see the drier is incorporated in the compressor, thanks for that bit of info.