Intestinalworm · Oct 18, 2020

One job that I know has never been done on my 2003 Disco 2 Td5 is changing the ACE filter. Some questions I have:

Has anyone just removed and cleaned the (stainless steel?) filter? Is it okay to just clean and re-use (assume you would ideally need to get a new o-ring if doing so) rather than buying a new filter which seems to be a bit pricey?
Genuine LR filter is over three times the price of OEM (c. AUD160 vs AUD50 - rimmer brothers as an example), so would be good to keep original and thoroughly clean and then buy an o-ring seal?
Is there no filter in the power steering system like there is with the ACE?
Looks like there is a weir in the combined ACE/Power Steering dual reservoir which allows the fluids to mix - is that right? (Would explain then how the steel filter on the ACE side would also ultimately filter the PAS fluid from the power steering reservoir)

I see from the www.discovery2.co.uk website that the drain hex plug on the ACE block can be very hard to remove (steel plug in aluminium housing). The best I have is a 30cm long breaker bar, so will have to try that and some penetrating fluid to start with and buy a can of butane for some heat if necessary.

sierrafery · Oct 18, 2020

Intestinalworm said:
Is it okay to just clean and re-use (assume you would ideally need to get a new o-ring if doing so) rather than buying a new filter which seems to be a bit pricey?

It's good enough if you clean the filter with petrol or something

Intestinalworm said:
Looks like there is a weir in the combined ACE/Power Steering dual reservoir which allows the fluids to mix - is that right?

No, the fluids are not mixing, there is a permannent filter in the tank's outlet so you can try to clean that together with the tank or replace the tank(maybe that's why they sheduled it as maintainance to be replaced at iirc 200k km)

from WSM - STEERING - DESCRIPTION AND OPERATION 57-7
......
A filter of fine polyester mesh is moulded into the base of the chamber. The filter removes particulate matter from the
fluid before it is drawn into the supply connection and is non-serviceable
......

lynall · Oct 18, 2020

When I had my TD5 I replaced the ACE filter, was most psisied when I realised it was just a gauze affair and could be cleaned, bloody expensive Iirc!

MJI · Oct 18, 2020

I fitted one to the block I first used but just cleaned the original once that was converted.

Intestinalworm · Oct 21, 2020

sierrafery said:
It's good enough if you clean the filter with petrol or something
No, the fluids are not mixing, there is a permannent filter in the tank's outlet so you can try to clean that together with the tank or replace the tank(maybe that's why they sheduled it as maintainance to be replaced at iirc 200k km)

from WSM - STEERING - DESCRIPTION AND OPERATION 57-7
......
A filter of fine polyester mesh is moulded into the base of the chamber. The filter removes particulate matter from the
fluid before it is drawn into the supply connection and is non-serviceable
......

Okay, will see if I can extract the filter - bit of penetrating fluid and maybe heat if required (several descriptions out there of what to do - looks like removing the seal is potentially the hard bit). Will clean it up with petrol and a toothbrush and let it thoroughly dry as you suggested. Thing is, just wondered re O-ring(s). Part RVJ100010 (filter) looks like it comes with two O-rings: one fitted on filter and one free. I've looked around and can't find the O-ring(s) for sale separately and can't find part numbers or specs for them. It would be good if I could purchase the correct size O-ring(s) - assuming they're Viton - before I remove the filter? Of course, I could just re-use the existing O-ring(s) and hopefully there is no leak after I reinstall the cleaned filter?

Any suggestions anyone/specs on O-ring(s)?

sierrafery · Oct 21, 2020

I bought something like this made in germany years ago: https://au.rs-online.com/web/p/seal-o-ring-kits/7058958/ and i remember that i found the proper o-ring in it for the filter, it was usefull when i replaced the aircon compressor and condenser too and for many other purposes but friends of mine removed and refitted the filter without changing the o-ring and nobody complained.

MAF Diver · Jul 24, 2024

sierrafery said:
It's good enough if you clean the filter with petrol or something

Can I spray it with degreaser or brake cleaner?

sierrafery · Jul 24, 2024

MAF Diver said:
Can I spray it with degreaser or brake cleaner?

that's "or something"

MAF Diver · Jul 24, 2024

sierrafery said:
that's "or something"

Cool, was just worried it could start breaking down the PAS fluid later? React bad?

sierrafery · Jul 24, 2024

MAF Diver said:
Cool, was just worried it could start breaking down the PAS fluid later? React bad?

You are supposed to blow the filter with compressed air to dry before refitting

MAF Diver · Jul 25, 2024

sierrafery said:
You are supposed to blow the filter with compressed air to dry before refitting

Ah great tip thanks!

Intestinalworm said:
Okay, will see if I can extract the filter - bit of penetrating fluid and maybe heat if required (several descriptions out there of what to do - looks like removing the seal is potentially the hard bit). Will clean it up with petrol and a toothbrush and let it thoroughly dry as you suggested. Thing is, just wondered re O-ring(s). Part RVJ100010 (filter) looks like it comes with two O-rings: one fitted on filter and one free. I've looked around and can't find the O-ring(s) for sale separately and can't find part numbers or specs for them. It would be good if I could purchase the correct size O-ring(s) - assuming they're Viton - before I remove the filter? Of course, I could just re-use the existing O-ring(s) and hopefully there is no leak after I reinstall the cleaned filter?

Any suggestions anyone/specs on O-ring(s)?

Did you find out what size o-ring it takes?

Andy Warren · Jul 28, 2024

MAF Diver said:
Ah great tip thanks!

Did you find out what size o-ring it takes?

Hi, if you scroll to the bottom of this page you'll see I picked up a couple of new filters which inc the o-rings. Unfortunately I'm in Skipton until Tuesday (LR classic off road driving experience then having Flatdog fit me a roof rack on the way home

) but I can measure the o-ring in the packet you can see in the other post if you wish, when I get back.

MAF Diver · Jul 31, 2024

Andy Warren said:
I can measure the o-ring in the packet you can see in the other post if you wish, when I get back.

Would be great to know, yes please Andy! Thanks!

Enjoy the drive and the new roof rack! Sick! (Which brand/style?)

Andy Warren · Jul 31, 2024

Large o-ring loose in filter bag & smaller o-ring on filter itself, hope this helps. Forgot thickness of o-ring on filter

Andy Warren · Jul 31, 2024

(Which brand/style?) I got a Flatdog one, very well made & I love the slots/tracks in the slats which you can put anchor rings anywhere (see pic) & they fitted it all for free along with the awning I supplied & only took 30 minutes, very pleased.

MAF Diver · Aug 2, 2024

Andy Warren said:
Large o-ring loose in filter bag & smaller o-ring on filter itself, hope this helps. Forgot thickness of o-ring on filter

That’s so helpful! Thank you

I need to find this roughly 35mm bigger oring for the hex key seal

Managed to get the other one sorted

Also didn’t have a 10mm hex key lying around so having to delay

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