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Oiley
Member Since: 17 Jan 2015
Location: Kent
Posts: 213
  
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idiots question here that someone mite be able to answer for me.
how can you tell if the exhaust cross over pipe is leaking/blowing.
my symptoms are as follows not a large amount of black smoke but enough to see under acceleration and a sucking noise from the front/underside.
intercooler hose's replaced with silicon hose's this happen since, have got under car to see if any soot marks and have hands up and around feeling for a blow.
not check my intercooler yet as a possible.
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 9th Jul 2017 7:42 pm |
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Discomadness
Member Since: 19 Jan 2015
Location: Caerphilly
Posts: 2256
 
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On mine there was a lot of soot around the turbo area and I could feel a bit of a blow, I also had exhaust gasses coming up in engine bay with bonnet open. I'm not convinced it's actually the cross over even though mine is nearly off, I think it may have been the egr valve link pipe from the manifold. However my crossover pipe brackets are missing as is most of the lagging so it's coming off to be replaced with one of my home upgraded ones.  Jarrod
Current : D3 2007 HSE - AKA the lemon
-beanie grille
-detango with led bulbs
-club body off rebuild. TWICE.
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| 9th Jul 2017 7:50 pm |
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BrettKaz
Member Since: 11 Nov 2013
Location: Canberra
Posts: 209
 
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I had same issue after replacing w/ silicon (whooshing from pass side). The small rubber hose should not be replaced w/ silicon without these.... T-bolt clamps.
http://www.disco3.co.uk/forum/topic157268.html
I found the only problem 'join' was on the turbo ... The other 5 'joins' seem fine with worm style clamps ... But I would change both on the small hose while you are in there. They can be retro-fitted without moving steel pipe.
Nb noted others here using screwdrivers to tighten worm clamps.... 7mm sochet.
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| 10th Jul 2017 12:51 am |
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sweetpea54321
Member Since: 23 Nov 2015
Location: Bolton
Posts: 212
 
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| Re: Exhaust cross over pipe |
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Oiley wrote:idiots question here that someone mite be able to answer for me.
how can you tell if the exhaust cross over pipe is leaking/blowing.
my symptoms are as follows not a large amount of black smoke but enough to see under acceleration and a sucking noise from the front/underside.
intercooler hose's replaced with silicon hose's this happen since, have got under car to see if any soot marks and have hands up and around feeling for a blow.
not check my intercooler yet as a possible.
I think mine is split..... I am getting a 'rasping' noise under acceleration that sounds like a piece of paper in spokes of a wheel. No other symptoms of smoke etc.... and only when revved above 3k rpm.
I was hoping it wasn't the cross over pipe as I understand its a gearbox out job??
Certainly beyond my capabilities on the driveway.
I'm watching this article with interest.... definitely the solution that 'Discomadness' has of repairing with a modified version
SP  Mods so far:
New wheel winch
Instrument upgrade (clock on dash)
D4 fascia + Garmin nuvi
LED side light, interior etc
New FL2 rear wheel arch seals
Parrot MKi9200 hands free kit
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| 11th Jul 2017 11:29 am |
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Discomadness
Member Since: 19 Jan 2015
Location: Caerphilly
Posts: 2256
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I'm a very experienced mechanic and I can honestly say it's not an easy job. If you have any nuts rounded like mine then your in a whole world of trouble. I've just bought a dremmel to gently grind the nuts off. I'll hopefully have some pics up this weekend of what I'm planning to do. Jarrod
Current : D3 2007 HSE - AKA the lemon
-beanie grille
-detango with led bulbs
-club body off rebuild. TWICE.
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| 11th Jul 2017 2:36 pm |
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Oiley
Member Since: 17 Jan 2015
Location: Kent
Posts: 213
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[quote]I'm a very experienced mechanic and I can honestly say it's not an easy job. If you have any nuts rounded like mine then your in a whole world of trouble. I've just bought a dremmel to gently grind the nuts off. I'll hopefully have some pics up this weekend of what I'm planning to do.[quote]
have to admit its one i'm not looking forward too either but must be done soon, car will off the road when kids finish school next week.
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| 11th Jul 2017 6:46 pm |
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Oiley
Member Since: 17 Jan 2015
Location: Kent
Posts: 213
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BrettKaz wrote:I had same issue after replacing w/ silicon (whooshing from pass side). The small rubber hose should not be replaced w/ silicon without these.... T-bolt clamps.
http://www.disco3.co.uk/forum/topic157268.html
I found the only problem 'join' was on the turbo ... The other 5 'joins' seem fine with worm style clamps ... But I would change both on the small hose while you are in there. They can be retro-fitted without moving steel pipe.
Nb noted others here using screwdrivers to tighten worm clamps.... 7mm sochet.
I only did the long and medium one and not the short one, Yet.
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| 11th Jul 2017 6:48 pm |
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Discomadness
Member Since: 19 Jan 2015
Location: Caerphilly
Posts: 2256
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If you go for diy on the cross over pipe, there's a diy how to on here somewhere. I would advise on top of that to remove the downpipe as it makes access a bit easier. The small intercooler pipe becomes quite accessible once you strip the egr valve and cooler off and the heatshields on the turbo side. Surprisingly you don't need that many tools. Iirc 8mm and 13mm sockets and spanners, hose clip remover, etc. Jarrod
Current : D3 2007 HSE - AKA the lemon
-beanie grille
-detango with led bulbs
-club body off rebuild. TWICE.
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| 11th Jul 2017 8:58 pm |
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BrettKaz
Member Since: 11 Nov 2013
Location: Canberra
Posts: 209
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I only did the long and medium one and not the short one, Yet.[/quote]
Not sure how long ago you did the hoses but if not done tight can loosen up over a month or so - worth trying to eliminate the turbo boost side first ... Hose clamps oil around the Intercooler ... Are you getting any codes?
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| 11th Jul 2017 9:33 pm |
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Oiley
Member Since: 17 Jan 2015
Location: Kent
Posts: 213
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Discomadness wrote:If you go for diy on the cross over pipe, there's a diy how to on here somewhere. I would advise on top of that to remove the downpipe as it makes access a bit easier. The small intercooler pipe becomes quite accessible once you strip the egr valve and cooler off and the heatshields on the turbo side. Surprisingly you don't need that many tools. Iirc 8mm and 13mm sockets and spanners, hose clip remover, etc.
egrs valves are already blanked of on mine  no problems there
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| 12th Jul 2017 6:07 pm |
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Oiley
Member Since: 17 Jan 2015
Location: Kent
Posts: 213
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BrettKaz wrote:I only did the long and medium one and not the short one, Yet.
Not sure how long ago you did the hoses but if not done tight can loosen up over a month or so - worth trying to eliminate the turbo boost side first ... Hose clamps oil around the Intercooler ... Are you getting any codes?[/quote]
did them last week end fella and not getting any codes up for it.
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| 13th Jul 2017 11:50 am |
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