 | Home > Maintenance & Mods (L405) > ARC/ACE issues... New front and rear pipes |
 
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| Haylands Member Since: 04 Mar 2014 Location: East Yorkshire Posts: 8449   
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Had a bong of doom yesterday, something about vehicle leaning too much, came with a red triangle and stop vehicle and turn off engine warning so being an obedient lad I drove home, fatty seemed fine to me but after 10 mins it had left it's mark on the drive....
So it looks like the front ARC pipe has burst and is leaking oil, it's a very minor leak as the resevoir is only down about a third. If the front pipe is gone then the rear won't be far behind (LOL) and the anti roll bars themselves are rather rusty.... I did clean them up and chuck Dinotrol all over them a while ago but I thought then it was probably too little too late...
So if I'm changing the pipes then the bars themselves will want doing and maybe the valve block as well... that lot seems to be close to £3,000 plus fitting... Now, I'm not a big fan of just deleting features on a car but I didn't notice any difference whatsoever on the 15 mile drive home after it packed up so it got me thinking does it need it, a lot of L405's don't have it, and it should be easy enough to fit standard stuff.... So, has anyone done it or heard of it being done, apparently you have to remove the pump from the engine and fit a smaller belt as if it runs dry it will seize... Then remove the rest of the bits and fit standard bars and possibly new drop links. Then it's modify the CCF to tell it it's gone and that's it.... As usual, comments, thoughts and abuse welcome.....  Pete
__________________________________________________ 2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior 2012 L322 Autobiography 5.0 Supercharged Ipanema Sand Sold 2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Sold 2002 L322 Vogue 4.4 V8 Epson Green (Fatty Offroader) Sold -Click for Project Fatty off roader- Last edited by Haylands on 12th May 2024 3:57pm. Edited 2 times in total |
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5th Sep 2023 2:43pm |
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| mpirie Member Since: 26 Jun 2012 Location: In the Highlands Posts: 907  
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I had the same problem.....for me it was the ACE pipe that runs down the offside chassis rail.
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6th Sep 2023 7:28am |
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| Haylands Member Since: 04 Mar 2014 Location: East Yorkshire Posts: 8449
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My exact thought, IMHO not enough room to secure a flexible hose to prevent pressure pulses wearing the hose without removing the sub frame and then you might as well use the standard pipes.....!!! Have seen some ARB's that have had the seals go and leak, I don't think it's a rust issue, just age.... It appears that the dynamic front and rear ARB's can be replaced without dropping the sub frames but the standard ones seem to need the front subframe dropping and the rear air bags etc removed. mpirie.....  that seems rather steep.....
On close inspection I have found this....
Look for the orange drip of coolant..... A coolant leak from the pipe to the rear HVAC unit, this is just in front of the drivers rear wheel, that is another steel pipe, this time coated in a rubber sheath to retain all that lovely salty water...!!! This pipe can be replaced with a rubber heater hose without removing the sub frame but best to do it properly I suppose.... After further reading I think I will keep it original and do both front and rear pipes, including lots of rust and corrosion treatment and prevention.... Pete
__________________________________________________ 2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior 2012 L322 Autobiography 5.0 Supercharged Ipanema Sand Sold 2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Sold 2002 L322 Vogue 4.4 V8 Epson Green (Fatty Offroader) Sold -Click for Project Fatty off roader- |
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6th Sep 2023 9:13am |
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| Cam-Tech-Craig Member Since: 03 Aug 2011 Location: Gloucestershire Posts: 16329
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Same water pipe than sprang a leak on my first 405 Peter... |
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6th Sep 2023 10:45pm |
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| Haylands Member Since: 04 Mar 2014 Location: East Yorkshire Posts: 8449
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Yep, if there is one thing worse than a scantily painted steel ARC pipe, it's a scantily painted heater pipe wrapped in a rubber sleeve to keep all that lovely salty water close to the pipe so it rusts through... |
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6th Sep 2023 11:32pm |
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| Haylands Member Since: 04 Mar 2014 Location: East Yorkshire Posts: 8449
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Had some fun today....
__________________________________________________ 2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior 2012 L322 Autobiography 5.0 Supercharged Ipanema Sand Sold 2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Sold 2002 L322 Vogue 4.4 V8 Epson Green (Fatty Offroader) Sold -Click for Project Fatty off roader- Last edited by Haylands on 14th Sep 2023 5:37pm. Edited 1 time in total |
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13th Sep 2023 8:27pm |
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| stan Site Moderator Member Since: 13 Jul 2010 Location: a moderate moderated moderator moderating moderately in moderation Posts: 35546 
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i wondered where you've been |
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13th Sep 2023 9:00pm |
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| Phoenix Member Since: 16 May 2022 Location: Gone Posts: 1631
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The prop nut wouldn't shift then?
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13th Sep 2023 9:35pm |
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| Haylands Member Since: 04 Mar 2014 Location: East Yorkshire Posts: 8449
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I'm not going to do a full "How to" with this as it's all in the WM and I don't think it's something you should try to do at home unless you are very brave.... Coming apart was pretty straightforward apart from the rear prop nut which, as Phoenix, surmised was a right PITA, we had two 4ft scaffold poles on the nuts and gave it as much as we dared but it wouldn't break free, it's not essential to remove it, just have to support it well... Exhaust was OK but it is heavy to do on your own...
You can see where the aluminium has been corroded away with the primer on in the next three pictures, this is around 1mm deep, the mounting places are very heavy thick areas so I don't think there will be a problem....
This is where the rear pipe has failed, just in front of the rear N/S subframe mount...
The valve body connections look quite good...
This is the convoluted route the pipes take above the subframe....!
All bolts and holes will be coated in Tef Gel which is a PTFE heavy anti seize compound which stops electrolysis getting a hold...
All these, and a couple more, mountings and brackets have been dropped off at the powder coaters to be made to look pretty but more important isolate the steel from the alloy, I am going to make some rubber gaskets or similar to keep them apart as well.... 
The front of both wheel arches have a piece of yellow open cell foam in it, I guess for NVH but I think I'm removing the foam, it was sopping wet and fatties been in the dry for days.... just another corrosion trap...
The rear coolant pipes have been ordered as well so that will get changed while the subframe is out... I removed all the fuel tank retaining bolts and cleaned up the areas and Tef Gel treated all the bolts, in fact any bolts into the aluminium that I see are getting removed and treated just to be nice to "Future Pete" Prices, all from Duckworths Land Rover so genuine parts... Front ARC Pipe £346 Rear ARC pipe £397 Rear coolant pipes £119 Oil £50 seals, collets etc £50 All incl VAT and delivered although I've picked them up as Robins not far away. Busy now till Tuesday by which time the rear pipe should be here.... Pete __________________________________________________ 2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior 2012 L322 Autobiography 5.0 Supercharged Ipanema Sand Sold 2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Sold 2002 L322 Vogue 4.4 V8 Epson Green (Fatty Offroader) Sold -Click for Project Fatty off roader- |
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14th Sep 2023 5:36pm |
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| Phoenix Member Since: 16 May 2022 Location: Gone Posts: 1631
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Well done Pete! There's a fair amount of consequential work but it's worth doing and doesn't cost much more. I'd completely forgot about Tef-Gel, I'll have to dig out my tub of it soon I think... |
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14th Sep 2023 5:49pm |
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| NoHandSignals Member Since: 28 Aug 2023 Location: MI Posts: 28  
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Great post. Following for learning as I am about to attempt replacing these ARC pipes myself too - as soon as they are in stock stateside. Their replacement seems to be super common here in the Midwest - my local dealer has two L405s in repairs right now waiting for the rear pipes too.
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15th Sep 2023 1:54am |
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| Haylands Member Since: 04 Mar 2014 Location: East Yorkshire Posts: 8449
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Rear pipe now delayed for another week, hopefully here Friday.... |
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18th Sep 2023 10:15pm |
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| NoHandSignals Member Since: 28 Aug 2023 Location: MI Posts: 28
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Out of stock in the US too. My dealer told me he has 2 L405 customers cars in at the moment waiting for the rear pipes… |
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19th Sep 2023 1:32am |
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| TJH1985 Member Since: 11 Feb 2015 Location: Nottingham Posts: 664 
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What kind of mileage do you have on it Pete?
Previously George a 2007 MY07 Java Black VSE 3.6 TDV8 Previously a 04 MY04 Defender 90  Last edited by TJH1985 on 19th Sep 2023 10:01am. Edited 1 time in total |
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19th Sep 2023 8:05am |
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