 | Home > Puma (Tdci) > Gearbox breather pipe routing |
 
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17448   
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It's definitely a breather, either an axle breather or the transfer box breather (the gearbox breather on a Puma is an 'orrible short thing that goes straight into the bellhousing). I'm not familiar with the breathers on a 90 but my guess is that it should go up the bulkhead as high as possible, there's probably a plastic clip somewhere it's come out of.
On my 110 the front axle and transfer box breathers come up on the nearside of the engine and finish roughly between the ECU and the heater fan box. Your pipe appears to be on the offside, which is unexpected (unless a 90 is different, and I don't see why it would be). As long as it goes upwards rather than downwards and the end is as high up as you can get it, it probably doesn't matter where it goes. If you follow the pipe from the free end to the fixed end you will find out what it "breathes"! 
Here's your picture, by the way:  Click image to enlarge |
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9th Dec 2022 8:42am |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3424  
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Judging by the prop shaft, the bend in the center box (on a 90 it is straight) and what seems to be brackets for the mudflaps, it looks like the OP has a 110.
On my old 90, and Td5 90s, the rear axle breather terminates just behind the A frame cross member, under one of the tub supports, right side (Offside for RHD vehicles). I do not know if on a Puma 90 or 110, the rear axle breather is brought further forward, never checked. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing 2012 90 CSW, 2.2TDCI, Santorini Black |
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9th Dec 2022 9:52am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17448
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On my Puma 110 the rear axle breather runs up to the nearside and emerges in a completely unsuitable place not far from the n/s/r wheel.
My advice to the OP would be to trace it back to see what it is, and run it to the highest point it can reach. |
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9th Dec 2022 12:05pm |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3424
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Got curious, and checked my Puma 90 rear axle breather, and goes along and above nearside chassis rail, all the way to the bulkhead location next to the front axle and TC breathers. Now that is an improvement over the Td5 and earlier rear axle breathers
 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black |
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9th Dec 2022 5:10pm |
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| o4dn Member Since: 08 Jan 2010 Location: South West Posts: 545  
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Dinnu, does the rear axle breather on the Puma 90 ends in the engine bay?
I can locate only two breather pipes under the bonnet...  “A Land Rover immobilized is a moral defeat for the driver and bad publicity for the vehicle, […] it's up to you to do justice to your Land Rover!” - Land Rover Driving Technique.
-- 2009 2.4 Puma Defender 90 SW 1979 Land Rover Series 3 88" |
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9th Sep 2024 5:25pm |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 532
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On my 2.2l 110 the rear axle, transfare box, and front axle breathers all ended up in the nearside of the engine bay by the bulkhead..
All those 3 pipes had a goose neck end and just appeared to be hung up in there with no real fasteners.. The gearbox pipe as bw said is a short corrugated thing with a couple of tangs on the end which snap into a hole in the bell housing..it actually vents into a void created by some stiffening webs cast into the bell housing structure and not directly into the clutch portion or space.. |
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9th Sep 2024 7:41pm |
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| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20447
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This might be where you might see variations between the 2.4 and 2.2. No Guts, No Glory.
🇬🇧🏴🏴🏴🇮🇪🇺🇸⛽️🛢️⚙️🧰💪 |
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9th Sep 2024 7:58pm |
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| Race.it Member Since: 27 Aug 2019 Location: Algeciras Posts: 823  
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On my 2.4 the breather pipes all end up by my brake master servo (Lhd) Searching for my first Defender...and started just as Covid hit, so talk about timing.
5 months after starting the search I found it, and here is the details |
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10th Sep 2024 7:30am |
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| o4dn Member Since: 08 Jan 2010 Location: South West Posts: 545
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Yeah, same here, LHD, but I can only see 2 pipes, hence my questioning…
Also, mine is a 90, so maybe the setup is different from a 110. Reason I ask is because I suspect my rear diff is pressurizing so I want to check the breather pipe, if only I could find where it ends up!  “A Land Rover immobilized is a moral defeat for the driver and bad publicity for the vehicle, […] it's up to you to do justice to your Land Rover!” - Land Rover Driving Technique.
-- 2009 2.4 Puma Defender 90 SW 1979 Land Rover Series 3 88" |
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10th Sep 2024 7:35am |
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| andy63 Member Since: 30 Jun 2023 Location: north east Posts: 532
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Just pick it up where it leaves the axle and follow it👍
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10th Sep 2024 8:17am |
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| Dinnu Member Since: 24 Dec 2019 Location: Lija Posts: 3424
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Yes. 2012 2.2.
As what Andy says. It may have dropped behind the engine as they are not really firmly retained on the bulkhead. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing 2012 90 CSW, 2.2TDCI, Santorini Black |
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10th Sep 2024 9:56am |
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| o4dn Member Since: 08 Jan 2010 Location: South West Posts: 545
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Good advice! Mystery solved, same as BW above, the rear axle breather is attached to the A-frame and ends up near the right rear wheel on the inner side of the chassis.. No wonder I could only see two pipes in the engine bay! “A Land Rover immobilized is a moral defeat for the driver and bad publicity for the vehicle, […] it's up to you to do justice to your Land Rover!” - Land Rover Driving Technique. -- 2009 2.4 Puma Defender 90 SW 1979 Land Rover Series 3 88" |
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10th Sep 2024 11:36am |
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