1992 Cooper
Spi
91000mls
Standard apart form a DTM
Car runs and drives fine, pulls strong and no probs whatsoever.................
Apart from when i put my foot down or rev at a standstill there is BLACK smoke? The back of the car is covered in flecks of black deposits the same as that inside the bore of the DTM.
I have also noticed that my fuel economy is way down approx 40 miles to a tenner and thats driving "A" roads at 55mph!!
Any ideas most welcome
Cheers
BM
Black Smoke?
Started by
Big Man
, Sep 19 2008 04:58 PM
24 replies to this topic
#1
Big Man
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Posted 19 September 2008 - 04:58 PM
#2
Shifty
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Posted 19 September 2008 - 05:00 PM
Might be better if you got this moved to the injection section(oooh-errr)
#3
Big Man
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Posted 19 September 2008 - 05:06 PM
oops i thought I put it in that however in my haste for help I posted in wrong bit!
#4
Shifty
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Posted 19 September 2008 - 05:08 PM
Thats a likely story, do you have an alibi?
#5
nomininolife
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Posted 19 September 2008 - 05:10 PM
Definately an overly rich mixture, I'm not sure of the cause, but I'm sure someone who knows will be along soon
David
David
#6
Big Man
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Posted 19 September 2008 - 05:10 PM
Thats a likely story, do you have an alibi?
yeah SOG
#7
Shifty
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Posted 19 September 2008 - 05:12 PM
Thats a likely story, do you have an alibi?
yeah SOG
Since when has he been a credible witness????
#8
Big Man
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Posted 19 September 2008 - 05:36 PM
[quote name='nomininolife' date='Sep 19 2008, 06:10 PM' post='1148221']
Definately an overly rich mixture, I'm not sure of the cause, but I'm sure someone who knows will be along soon
David
I agree but not sure how to go about fixing the problem, hope its something simple and cheap!
Definately an overly rich mixture, I'm not sure of the cause, but I'm sure someone who knows will be along soon
David
I agree but not sure how to go about fixing the problem, hope its something simple and cheap!
#9
taffy1967
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Posted 19 September 2008 - 06:46 PM
Are all the vacuum pipes in good shape? Check the one running from the inlet manifold.
#10
Big Man
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Posted 19 September 2008 - 06:51 PM
Are all the vacuum pipes in good shape? Check the one running from the inlet manifold.
yes thats fine as only recently re plumbed it in due to rough running, but will re check.
BM
#11
chris_gilly
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Posted 19 September 2008 - 07:25 PM
you could by a colourtune around £15 they are....
anyway have you checked the air filter as a dirty on can cause this?!?!
also could a baffle in the exhaust system give way or is the exhaust internals sooty??
anyway have you checked the air filter as a dirty on can cause this?!?!
also could a baffle in the exhaust system give way or is the exhaust internals sooty??
#12
taffy1967
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Posted 20 September 2008 - 06:20 PM
When were the valve clearances last set?
#13
Big Man
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Posted 21 September 2008 - 03:49 PM
When were the valve clearances last set?
Would the tappets not being set correctly (even thought they are proper quite) account for 20 - 30 miles @ 50 mph "A "roads" to a tenner and shed loads of black smoke???? I have not done the tappets since I owned the car so at least three months.
#14
taffy1967
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Posted 21 September 2008 - 10:19 PM
When were the valve clearances last set?
Would the tappets not being set correctly (even thought they are proper quite) account for 20 - 30 miles @ 50 mph "A "roads" to a tenner and shed loads of black smoke???? I have not done the tappets since I owned the car so at least three months.
If their well out then it could be causing you some real problems.
#15
Big Man
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Posted 23 September 2008 - 05:09 PM
tappet set yesterday.
Changed the Coolant tempssensor today
Topped everything up and guess what STILL balck smoke and smell RICH
Also put it on the MOT gas analyser thing before CTS change and Co2 was around 10.34 (top left bit of screen) chap said it should be running around 0.4 - 0.5 and said my economy was like 10 x worce tha nwaht it should be.
Im stuck HELP!!!!
Cheers
BM
Changed the Coolant tempssensor today
Topped everything up and guess what STILL balck smoke and smell RICH
Also put it on the MOT gas analyser thing before CTS change and Co2 was around 10.34 (top left bit of screen) chap said it should be running around 0.4 - 0.5 and said my economy was like 10 x worce tha nwaht it should be.
Im stuck HELP!!!!
Cheers
BM
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