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Author Smokey 1.5D?
Gazdaman
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Registered: 30th Aug 07
Location: Leicester
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27th Feb 10 at 13:40   View User's Profile U2U Member Reply With Quote
So I took my car in for its MOT a couple of weeks back.

Failed on a few minor bits that I've sorted.

but they refused to test emissions due to black smoke. So I've changed the air filter, which was pretty gummed up, and given it an oil and filter change.

It's much much better on acceleration, but still smokes quite heavily if you get the revs up too high, or come off the throttle suddenly from high revs.

My question is, if it's still too smokey to get through the MOT, what do I check next?

Gaz
lostboy
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Registered: 29th Jan 09
Location: Durham
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27th Feb 10 at 13:43   View User's Profile U2U Member Reply With Quote
Try some new spark plugs.
Gazdaman
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Registered: 30th Aug 07
Location: Leicester
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27th Feb 10 at 13:43   View User's Profile U2U Member Reply With Quote
Oh dear god.
lostboy
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Registered: 29th Jan 09
Location: Durham
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27th Feb 10 at 13:45   View User's Profile U2U Member Reply With Quote
peggsie
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Registered: 30th Aug 08
Location: guisborough
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27th Feb 10 at 14:04   View User's Profile U2U Member Reply With Quote
try fuel filter, also could try sum injector cleaner through your tank might help it other than that i wouldn't no wot to check is it a flat diesel or turbo diesel?
Gazdaman
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Registered: 30th Aug 07
Location: Leicester
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27th Feb 10 at 14:06   View User's Profile U2U Member Reply With Quote
N/a diesel. I'll put some redex through it with a tank of fuel today and see if that helps. Failing that, I'm thinking reset the fuel pump, and check the valves.
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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27th Feb 10 at 14:17   View User's Profile U2U Member Reply With Quote
EGR?
SportBoy
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Registered: 5th Oct 01
Location: Retford, Nottinghamshire
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27th Feb 10 at 14:18   View User's Profile U2U Member Reply With Quote
give it a thrash, exhaust is prob sooted up.
Gazdaman
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Registered: 30th Aug 07
Location: Leicester
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27th Feb 10 at 14:19   View User's Profile U2U Member Reply With Quote
It gets a fairly good going over, always has long runs, never less than 30 miles. I've probably put nearly 4k miles on it in about 3 months.

EGR's worth a look though.
sand-eel
Member
Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
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27th Feb 10 at 14:30   View User's Profile U2U Member Reply With Quote
Does it start quite easily?
Gazdaman
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Registered: 30th Aug 07
Location: Leicester
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27th Feb 10 at 14:37   View User's Profile U2U Member Reply With Quote
Very easily, compression seems good.
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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27th Feb 10 at 14:43   View User's Profile U2U Member Reply With Quote
Have u got a Mityvac?
Gazdaman
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Registered: 30th Aug 07
Location: Leicester
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27th Feb 10 at 14:45   View User's Profile U2U Member Reply With Quote
I suppose the fact I had to google what one was should have answered my question.

But no, I don't.

Gaz
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
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27th Feb 10 at 14:46   View User's Profile U2U Member Reply With Quote
Buy one, and use it to check if your EGR is opening and closing.
DENTYSRI
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Registered: 13th Nov 08
Location: Co. Durham
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27th Feb 10 at 14:49   View User's Profile U2U Member Reply With Quote
sounds like the pump has been wound up to high to me
AlunJ
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Registered: 3rd Apr 07
Location: Newport
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27th Feb 10 at 15:19   View User's Profile U2U Member Reply With Quote
i'd try some redex maybe myself and give it death down some duals to clear any shite in the exhaust. as has been said, could be problem with pump though
sand-eel
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Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
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27th Feb 10 at 15:45   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Gazdaman
Very easily, compression seems good.


Won't be glow plugs then.
Gazdaman
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Registered: 30th Aug 07
Location: Leicester
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27th Feb 10 at 15:52   View User's Profile U2U Member Reply With Quote
I'll start with redex and give it some death, then fuel pump, then EGR, then I'll worry. I found my MOT cert, and it'll still ok for another month, so I've got a while to work it out.
Eck
Premium Member

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Registered: 17th Apr 06
Location: Lundin Links, Fife
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27th Feb 10 at 17:22   View Garage View User's Profile U2U Member Reply With Quote
Correct me if I'm wrong... But if you take a car in for an MOT with 1 month remaining, and it fails, it is then void?
richc
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Registered: 24th Mar 07
Location: Ilkeston
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28th Feb 10 at 12:51   View User's Profile U2U Member Reply With Quote
Redex and death for me.....
weddy1988
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Registered: 17th Sep 07
Location: Fife
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28th Feb 10 at 17:25   View User's Profile U2U Member Reply With Quote
would never be glow plugs any ways buddy

Glow plugs are only there to start the vechile
ounce started up runs its self

Christ diesels can run with no battery ect...if a diesels gouvoner brakes and u dont cut the fuel it will jsut rev all the way till it blows up lolol...cant find a good google one but by god its sum bang when a lorry one or bus one blows up **Ping straight through the block **

cant beat a dirty derv

my first thing i'd look at is the pump though
spencer88
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Registered: 6th Oct 08
Location: cornwall
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28th Feb 10 at 20:31   View User's Profile U2U Member Reply With Quote
If you want to clean the engine out use some biodiesel in it.
Gazdaman
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Registered: 30th Aug 07
Location: Leicester
User status: Offline
1st Mar 10 at 10:35   View User's Profile U2U Member Reply With Quote
Right, redex is in the tank now. So we'll see come MOT retest time!

And I believe if your car fails it's MOT it's still valid until the end of the original certificate. Unless it's a dangerous failure and they prohibit the car.

Gaz
Gazdaman
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Registered: 30th Aug 07
Location: Leicester
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8th Mar 10 at 19:25   View User's Profile U2U Member Reply With Quote
Hi guys, need some more ideas. I've gone through an entire bottle of redex in two tanks of fuel now. And I've given it some mega-death including 80mph in fourth.

It seems to be a little better after giving it death, but soon goes back to its normal smokey self.

It seems worst under heavy load, like up a hill in fourth, it'll steadily smoke then there will be a MASSIVE billow when I change up.

I've been advised to look at the rocker breather, tube that goes from the rocker cover to the inlet plenium. Possible oil in there?

I'm informed my engine doesn't have EGR, so it's not going to be that.

Keep those ideas coming peoples!
Scotty C
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Registered: 6th Nov 05
Location: Kidderminster Drives: 1.6 16v Sport
User status: Offline
8th Mar 10 at 19:34   View User's Profile U2U Member Reply With Quote
Yeah, could well be the breather! easy job

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