Modern diesel smoke (probably the wrong forum)

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hobby
Posts: 200
Joined: Tue Jul 26, 2011 6:09 pm

Re: Modern diesel smoke (probably the wrong forum)

#11 Post by hobby »

Perkins powered Maestros and Montys always smoked, YF, good old early Di diesels in cars, they hadn't quite got the hang of smoke, though they were damned efficient!

I have to say my first thought was the EGR, though I can see the logic of the injectors suggestion as well... I had an early Vectra Di (the 82bhp version) and as it was under warranty the warranty company spent about £3500 trying to fix it's smoking and couldn't... Unless you can find anything obvious and cheap through a Ford Forum I'd sell it on...
suffolkpete
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Joined: Sun Jan 23, 2011 11:54 am

Re: Modern diesel smoke (probably the wrong forum)

#12 Post by suffolkpete »

If it can pass the MoT when warm, then I wouldn't worry too much if it's not easily fixable.
1974 Rover 2200 SC
1982 Matra Murena 1.6
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JPB
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Joined: Fri Jan 07, 2011 3:24 pm

Re: Modern diesel smoke (probably the wrong forum)

#13 Post by JPB »

suffolkpete wrote:If it can pass the MoT when warm, then I wouldn't worry too much if it's not easily fixable.
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"Home is where you park it", so the saying goes. That may yet come true.. :oops:
Phil P
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Joined: Tue Jan 29, 2013 4:00 pm

Re: Modern diesel smoke (probably the wrong forum)

#14 Post by Phil P »

Buy your diesel in France. They don't sell the over priced baby oil over there. It smells like diesel should!! A mate of mine puts a couple of litres of petrol in his Merc Sprinter van and it goes like the clappers and doesn't blow smoke. I'm afraid what Ford agents know about diesel cars and 50pence wouldn't get your hair cut!

These modern diesels don't get hot enough and the exhaust gas is 'cold' so any unburnt fuel builds up in the exhaust system and then gets blown out when you load it up. The thing that annoys me we are legislated to design and build engines that are supposed to give out no smoke or poisonous gases and on the otherside of the World there are God knows how many million people who couldn't give a twopenny whatsit how much rubbish they chuck out! I don't believe it. That's probably why they are buying up all the old Gardner diesels. Frankly since this global warming malarky I haven't seen so much cold weather.

Anyway I must go I've got to take Margaret and Mrs Warboys to the library.

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TerryG
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Re: Modern diesel smoke (probably the wrong forum)

#15 Post by TerryG »

Just an update in case somebody else comes across a similar problem with their modern.
After the Ford boys all pointing fingers at my EGR as something to try before condemning the injectors I removed it only to find it was only 2 years old and looked pretty new, sealed ok and opened / closed as it should. The EGR cooler was totally blocked so cleared that. Made no difference at all.
Watching some "car tv" where one of the mechanics recommended against using a K&N filter with hotwire injection as it can coat the "hot wire" and change the resistance causing fuelling issues. I pulled the manifold temperature sensor and gave it a thorough clean. I have tested it previously and found that open circuit should read -35 on the computer and it has always read within a few degrees of ambient so not thought any more about it. After a clean there was almost 9 degrees of difference. After a few days I think the problem is fixed or at least HUGELY improved as there is still a bit of smoke at idle but not the clouds when I pull away :)
Understeer: when you hit the wall with the front of the car.
Oversteer: when you hit the wall with the back of the car.
Horsepower: how fast you hit the wall.
Torque: how far you take the wall with you.
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