Mark Posted September 6, 2007 Share Posted September 6, 2007 I am changing the Transfer box on the disco, so while its out I thought I would extend the breathers up and tie them into the new snorkel. while I was there, I also did the axle breathers too. I have replaced all the existing breather pipework and used new pushfit connectors and this is what I ended up with: Transfer box has a new right angle pushfit connetcor - the thread is 1/8 BSP. The Gearbox is done in the same way, but I don't have pictures of that: The breathers from the transfer box and the gearbox are combined from 2 6mm pipes, into one 8mm pipe: (nb the transfer box hasn't been fitted yet... ) The front axle has another 90 degree fitting, and the pipe follows the route of the original breather: The rear axle has been routed along the opposite side to the original, avoiding the exhaust, and along the top of the chassis: The 8mm pipe from the transmission and the 2 6mm from the axles all extend up the bulkhead to a mulitway fitting which is attached to the scuttle - There is one spare 6mm input, which is blanked off (does anything else need a breather??) The other bit of 8mm pipe goes through the scuttle (using a bulkhead fitting, cos I had one.... ): ..and then proceeds up the A post on the same route as the wiring harness for the roof lights: I used one last fiitting by drilling and tapping the snorkel top with a 1/4 bsp thread so the breather pipes terminate in the top of the snorkel: Hopefully, that should be all the breathers done... Posted in international as I would have thought it was as applicable to range rovers and defenders as much as discoverys... Hope that is of interest to someone... Cheers Mark Quote Link to comment Share on other sites More sharing options...
smo Posted September 7, 2007 Share Posted September 7, 2007 Very tidy, i have a similar system on mine (when it gets finished!) Quote Link to comment Share on other sites More sharing options...
Orange Posted September 7, 2007 Share Posted September 7, 2007 Save me some fittings and pipe please!! Very neat! Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted September 7, 2007 Share Posted September 7, 2007 I have done almost exactly the same thing on the 109, I did use SS fittings though 'cos they're bling innit I did the engine & fuel tank breathers too. Quote Link to comment Share on other sites More sharing options...
Tonk Posted September 7, 2007 Share Posted September 7, 2007 like this john? Quote Link to comment Share on other sites More sharing options...
Mark Posted September 7, 2007 Author Share Posted September 7, 2007 Wasn't sure about the fuel tank breather, I guess it should really be raised.... Where is the engine breather on a 200 TDI then? I basically did all the pipes i could find... I used plastic fittings cos that's what I had - I found a bucket load in a skip, and the pipework too, so the breathers have so far cost me nowt bar a few cable ties... It remains to be seen if the plastic fittings on the axles will take the abuse though... Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted September 7, 2007 Share Posted September 7, 2007 like this john? Almost exactly like that, yes. No idea where the breathers are/need to be on a TDi - ISTR people drill & tap the timing case and also do the PAS reservoir which is one I haven't (yet) done, mind you it's quite high off the ground Quote Link to comment Share on other sites More sharing options...
DiscoStu Posted September 7, 2007 Share Posted September 7, 2007 Done exactly the same myself but used a 4 into 1 manifold in the engine bay. It's also possible to fit a crankcase breather but it requires drilling and tapping the cover, not got round to that one yet. Stu. Quote Link to comment Share on other sites More sharing options...
will_warne Posted September 7, 2007 Share Posted September 7, 2007 Wasn't sure about the fuel tank breather, I guess it should really be raised....Where is the engine breather on a 200 TDI then? I basically did all the pipes i could find... I used plastic fittings cos that's what I had - I found a bucket load in a skip, and the pipework too, so the breathers have so far cost me nowt bar a few cable ties... It remains to be seen if the plastic fittings on the axles will take the abuse though... Mark, for the engine you want to do the back of the injector pump (you'll find a little rubber cap with a short pipe on the back) and the timing case (otherwise the front cover can warp). You also want to raise the breather on the PAS reservoir otherwise you'll trash the PAS pump and box.... As far as the fule tank goes the breather will probably be in the cap. If you want to raise the breather you'll need a sealed cap and then mount a roll over valve into the filler neck and attach the tube to that. Quote Link to comment Share on other sites More sharing options...
TomG Posted September 7, 2007 Share Posted September 7, 2007 Very neat! Any recommendations for a supplier for the pipe and fittings? Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted September 7, 2007 Share Posted September 7, 2007 I use Hyphose. Quote Link to comment Share on other sites More sharing options...
Mark Posted September 8, 2007 Author Share Posted September 8, 2007 Mark, for the engine you want to do the back of the injector pump (you'll find a little rubber cap with a short pipe on the back) and the timing case (otherwise the front cover can warp). You also want to raise the breather on the PAS reservoir otherwise you'll trash the PAS pump and box.... As far as the fule tank goes the breather will probably be in the cap. If you want to raise the breather you'll need a sealed cap and then mount a roll over valve into the filler neck and attach the tube to that. Didn't have much success with any additional breathers... Couldn't find the cap on the injector pump, anyone got a picture? I am presuming the timing chest will need drilling and tapping. Anyone done this in situ? Not entirely convinced I want to open it up to add a fitting, but I wouldn't have thought swarf would go well in there? Also, I could not find any evidence of a breather on the pas reservoir - is this another one I need to create? It seems to be sealed at the moment, so not sure I want to vent it to amosphere... Cheers Mark Quote Link to comment Share on other sites More sharing options...
will_warne Posted September 9, 2007 Share Posted September 9, 2007 Didn't have much success with any additional breathers... Couldn't find the cap on the injector pump, anyone got a picture? I am presuming the timing chest will need drilling and tapping. Anyone done this in situ? Not entirely convinced I want to open it up to add a fitting, but I wouldn't have thought swarf would go well in there? Also, I could not find any evidence of a breather on the pas reservoir - is this another one I need to create? It seems to be sealed at the moment, so not sure I want to vent it to amosphere... Cheers Mark Mark, I'll try and remember to grab a photo of the injector breather later. You're rubber cap may have gone but its basically in the middle of the back of the pump. Its a shame Moglite's website www.red-ibex.com has gone off line as it covered breahters in great detail I've seen a few differant solutions to the timing case breather: Drill and tap the main cover (rare), include a breather into the drain plug and welding a peice of plate to the little inspection plate and drilling and tapping that. I chose the last option. The PAS res. breahter can be hard to find. Take off the top and you'll see a small hole (4mm diameter IIRC) on the side of it. What I did was opened it up to 5mm and epoxied some 5mm tube into it. HTH Quote Link to comment Share on other sites More sharing options...
Gromit Posted September 9, 2007 Share Posted September 9, 2007 I've seen a few differant solutions to the timing case breather: Drill and tap the main cover (rare), include a breather into the drain plug and welding a peice of plate to the little inspection plate and drilling and tapping that. I chose the last option. Couldn't you remove the injection pump inspection cover from the timing cover and drill and tap that? Quote Link to comment Share on other sites More sharing options...
Pete Attryde Posted September 11, 2007 Share Posted September 11, 2007 Couldn't you remove the injection pump inspection cover from the timing cover and drill and tap that? That's what I did on my last one and will be doing something similar to the Disco but drilling and tapping the tensioner for the aircon pump. Pete. Quote Link to comment Share on other sites More sharing options...
white90 Posted September 11, 2007 Share Posted September 11, 2007 I had breathers going into the snorkel top problem was the suction drew oil into them thus blocking them and far more likely to blow seals came to light when EP90 reached the snorkel and ran down the tube after leaking into the snorkel top Quote Link to comment Share on other sites More sharing options...
will_warne Posted September 11, 2007 Share Posted September 11, 2007 I had breathers going into the snorkel top problem was the suction drew oil into them thus blocking them and far more likely to blow seals came to light when EP90 reached the snorkel and ran down the tube after leaking into the snorkel top Tony, it must be an issue with smaller bore snorkels - my 3.5" bore Safari never gave these problems. Quote Link to comment Share on other sites More sharing options...
Mark Posted September 11, 2007 Author Share Posted September 11, 2007 I did wonder if there would be a suction effect by plumbing the breather into the snorkel top. Might review that bit and find another solution... Quote Link to comment Share on other sites More sharing options...
white90 Posted September 12, 2007 Share Posted September 12, 2007 I have a local problem of insects blocking the bluddy breathers with soil are laying eggs I guess funny till a hub seal/pinion seal blows I blew them all out today with the new T Max compressor, that cleared them good and proper I may fit a filter of some sorts to keep the pesky critters out. Quote Link to comment Share on other sites More sharing options...
Guest WALFY Posted September 12, 2007 Share Posted September 12, 2007 When I did this on my last 90 I had the same problem as you Tony. The way round it that I used was I had a mate who made circuit board handling machinery and they used some metal gauze filters. Also on some machines they used an air stone. A bit like a pumiss stone. By the looks of it, it is the same as the airstones you get on fish tanks to aireate the water. Perhaps the petshop in Alcombe would have what you need for a few pence. HTH Quote Link to comment Share on other sites More sharing options...
SteveG Posted September 12, 2007 Share Posted September 12, 2007 I may fit a filter of some sorts to keep the pesky critters out. Motorsport shops sell small filters for external use that would be ok. I think I saw northernchris using them on his breathers. Cheers Steve Quote Link to comment Share on other sites More sharing options...
bishbosh Posted September 12, 2007 Share Posted September 12, 2007 You could also use a filter from a R/C model engine. Quote Link to comment Share on other sites More sharing options...
will_warne Posted September 12, 2007 Share Posted September 12, 2007 The route I was going to take with my breathers was on one of the top corners of the front and rear roll cage hoops (I've got a lot of breahters) to weld a peice of tube cut in half to the bottom of the cage tube. This could then be drilled and tapped to take push fit connectors. The explaination isn't great but I've done a quick paint sketch. Quote Link to comment Share on other sites More sharing options...
stumpy2268 Posted September 12, 2007 Share Posted September 12, 2007 You could also use a filter from a R/C model engine. Another solution, should you need to fit a filter - RS components part # 722-277 Pneumatic Exhaust Silencer. Just a thought Quote Link to comment Share on other sites More sharing options...
dirtydiesel Posted September 12, 2007 Share Posted September 12, 2007 The 8mm pipe from the transmission and the 2 6mm from the axles all extend up the bulkhead to a mulitway fitting which is attached to the scuttle - There is one spare 6mm input, which is blanked off (does anything else need a breather??) Cheers Mark Timing cover, injection pump and pas res all need breatering if your doing the job right. Quote Link to comment Share on other sites More sharing options...
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