Automatic black smoke

scorpio · 29th March 2018, 15:12

Hi,

I have just towed my caravan to mabelthorpe and it is blowing black smoke under 2000 revs any ideas what it may be please.

Nantwich 75 · 29th March 2018, 15:25

Intercooler hose o rings?

scorpio · 29th March 2018, 15:37

Just had new ones fitted at the west mids nano meet.

Mike24 · 29th March 2018, 15:40

I would agree, I had black smoke on acceleration and a sooty deposit on the rear bumper when my intercooler was cracked. I also found that the car couldn't seem to decide which gear it wanted to be in and kept changing up and down on gentle inclines.

Mickyboy · 29th March 2018, 16:14

Sounds like O rings, the O rings might have popped up wouldn’t be the first time I’ve seen that.
Does it feel a bit sluggish
Mick

scorpio · 29th March 2018, 16:30

No it pulls great after 2000 revs. Its as if its got no boost then it flies.

Mickyboy · 29th March 2018, 18:13

Quote:

Originally Posted by scorpio

No it pulls great after 2000 revs. Its as if its got no boost then it flies.

Possibly rules out O rings then, if they had come detached it certainly would “fly”
Black Smoke: Over-fueling is the primary cause of black smoke from the exhaust of a diesel engine. Over-fueling can be caused by diesel fuel injector wear that enlarges the nozzle hole or erodes the injector needle and allows excess fuel to flow into the combustion chamber.
possible below 2000 revs that your MAF could be way out of spec, did you get it on a T4 at the last meet ?
Mick

LeRich · 29th March 2018, 20:45

EGR valve sticking?

Arctic · 29th March 2018, 22:26

Hi Pete.
Your intercooler pipe as seen better days, I would replace it to be honest, it is very flared at the point of intercooler bend fitment.

If I remember you have a bypass EGR ? so that would rule out the valve sticking.

hopefully the intercooler it's self does not have a tiny hole, or even the intercooler hose which would expand on calling for boost, I still suspect the hose if not then it could be MAF but I am sure Duncan told you it was in spec ? I don't know as I was not round the table at the time.

https://www.ebay.co.uk/itm/GENUINE-R...19.m1438.l2649

scorpio · 30th March 2018, 13:23

Hi Steve I have ordered a hose and yes Duncan said ithe maf was in spec.

I will see what happens when I change the pipe.

29th March 2018, 15:12	#1
scorpio Loves to post 75 Tourer zircon silver Join Date: Dec 2015 Location: Birmingham Posts: 270 Thanks: 47 Thanked 32 Times in 27 Posts	Automatic black smoke Hi, I have just towed my caravan to mabelthorpe and it is blowing black smoke under 2000 revs any ideas what it may be please. __________________ Peter Rover 75 Tourer Connoisseur CDT Auto Zircon Silver

29th March 2018, 15:37	#3
scorpio Loves to post 75 Tourer zircon silver Join Date: Dec 2015 Location: Birmingham Posts: 270 Thanks: 47 Thanked 32 Times in 27 Posts	Just had new ones fitted at the west mids nano meet. __________________ Peter Rover 75 Tourer Connoisseur CDT Auto Zircon Silver

29th March 2018, 16:14	#5
Mickyboy SERVICING AND DEALER DIAGNOSTICS MG ZT CDTI 135 + & MGZT CDTI AUTO 160 & ROVER 75 TOURER CDTI 160 TROPHY YELLOW Join Date: Aug 2013 Location: Hernebay Posts: 4,331 Thanks: 818 Thanked 2,414 Times in 1,141 Posts	Sounds like O rings, the O rings might have popped up wouldn’t be the first time I’ve seen that. Does it feel a bit sluggish Mick __________________ [SIGPIC][/SIGPIC] T4 Owner Jobs done : new UBP, Spy hole mod, Rear hub(wheel bearing),plenum cleaned and emptied, Inline thermostat fitted,Full service, In car Digital tv/DVD Bluetooth Satnav etc, Replaced UBP, Restored headlights,Fixed airbag connection.replaced HP pump,replaced rear light seals,changed intercooler O rings. Jobs to do: ,replace drivers lock,.[/SIZE]

29th March 2018, 16:30	#6
scorpio Loves to post 75 Tourer zircon silver Join Date: Dec 2015 Location: Birmingham Posts: 270 Thanks: 47 Thanked 32 Times in 27 Posts	No it pulls great after 2000 revs. Its as if its got no boost then it flies. __________________ Peter Rover 75 Tourer Connoisseur CDT Auto Zircon Silver

29th March 2018, 20:45	#8
LeRich Posted a thing or two Rover 75 Cont SE 1.8T Join Date: Aug 2010 Location: Cheshire Posts: 1,082 Thanks: 215 Thanked 232 Times in 178 Posts	EGR valve sticking? __________________ Rover 75 1.8T Contemporary SE Auto Starlight Silver MBB

29th March 2018, 15:25	#2
Nantwich 75 Loves to post Rover 75 Tourer Join Date: Mar 2016 Location: Nantwich Posts: 267 Thanks: 102 Thanked 31 Times in 23 Posts	Intercooler hose o rings?

29th March 2018, 15:40	#4
Mike24 Loves to post Rover 75 CDTI Auto Saloon Connoisseur SE Join Date: Apr 2015 Location: Coventry Posts: 358 Thanks: 166 Thanked 67 Times in 56 Posts	I would agree, I had black smoke on acceleration and a sooty deposit on the rear bumper when my intercooler was cracked. I also found that the car couldn't seem to decide which gear it wanted to be in and kept changing up and down on gentle inclines.

29th March 2018, 22:26	#9
Arctic Give to Learn Freelander 2 Join Date: Aug 2010 Location: West Midlands Posts: 18,695 Thanks: 1,155 Thanked 6,407 Times in 3,874 Posts	Hi Pete. Your intercooler pipe as seen better days, I would replace it to be honest, it is very flared at the point of intercooler bend fitment. If I remember you have a bypass EGR ? so that would rule out the valve sticking. hopefully the intercooler it's self does not have a tiny hole, or even the intercooler hose which would expand on calling for boost, I still suspect the hose if not then it could be MAF but I am sure Duncan told you it was in spec ? I don't know as I was not round the table at the time. https://www.ebay.co.uk/itm/GENUINE-R...19.m1438.l2649 __________________ Arctic Givology Learn to Give Everything is Achievable ad altiora tendo. Check out our Nano meet dates http://www.midlandsnanomeets.co.uk/ http://www.the75andztclub.co.uk/index.php?thepage=howto " You do the work , we supply the expertise "

30th March 2018, 13:23	#10
scorpio Loves to post 75 Tourer zircon silver Join Date: Dec 2015 Location: Birmingham Posts: 270 Thanks: 47 Thanked 32 Times in 27 Posts	Hi Steve I have ordered a hose and yes Duncan said ithe maf was in spec. I will see what happens when I change the pipe. __________________ Peter Rover 75 Tourer Connoisseur CDT Auto Zircon Silver

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