soot sifting on old diesel engines....ie emissions !!

Discussion in 'Discussion' started by pp-admin, Feb 15, 2019.

  1. pp-admin

    pp-admin Member

    probably a very silly ideal and unworkable but................

    with our own truly wonderful government and their over zealous tree hugging chums in the rest of the EU, its been clear to me for a while that diesel engines are now public enemy number 1 in environmental terms.

    i only see this public perception getting worse and legislation increasing year after year......look what they have done recently to the MoT test making it very very hard for old vehicles to pass. My old diesel van nearly broke the exhaust gas probe it was belching out so much soot under the test !!!

    as an antedote to this and with no intention of giving up my vast collection of dirty filty, belching and smoke farting engines, is there anything affordable and do-able that would reduce emissions of our stationary engines that are all pre Euro emission regulations and, for that matter, pre the EU itself !!!

    I have been thinking about exhausts etc etc and maybe carbon (ie PAC or soot) capture contraptions but fitting particulate filters is a step too far.

    Any thoughts or suggestions. I think strong emissions regulation is heading for us in our hobby sooner or later and I dont see any solution for us to keep runing our wonderful old diesel engines.

    gerry
     
  2. campingstoveman

    campingstoveman Active Member

    You could go for DPF's, I know mine worked as it cost me £540 to get it cleaned out because it was blocked from the previous owner not doing more than 1500 miles in it for the last three years of ownership, to stop it from happening again I take my car once a month along Bedford bypass at 70 mph in third to get the heat up to burn it clean, I dont like doing it though, Subaru Dealer advice. I tink you would have to give it a very good load at high reves to acheive the same result.
     
  3. Philipagri

    Philipagri Member

    Sorry but what is a 'DPF'? I know if I take my pickup engine (Isuzu} over 3000rpm it starts misfiring.
    Philip
     
  4. highrange

    highrange Member

    "Diesel Particulate Filter" .... in theory the electronics allow the engine to run with a very hot exhaust periodically to burn off the soot that collects in the filter. In practice this doesn't seem to work very well and the very expensive filter clogs and has to be replaced. Poor technology really, like most of the stuff associated with exhaust emissions.
     
    Last edited: Feb 16, 2019
  5. campingstoveman

    campingstoveman Active Member

    Yes thats the theory but its based on the owner taking his car for a long run regularly, minimum 20 mins at high revs high speed but most dont and the cycle doesnt finish its job until the next time which again could be cut short so its not always the cars fault, a replacement for mine would have been £1000 hence I had it cleaned.
    Martin P
     
  6. highrange

    highrange Member

    Indeed...... but this wasn't explained at the time of purchase, and diesel cars are/were sold as normal family vehicles. A bit of a sore point, really: we had a diesel Skoda - fine for the 5 or so years we had it (used mainly on short journeys, but given a good hard run regularly). Trips to Ireland,France and |Spain in that time. When time to change, the dealers offered a pittance so I passed it onto my daughter for that pittance; she only had it a few weeks when problems arose, and a new DPF and EGR (exhaust gas recirculation) valve and "cooler" was needed. This was done...not an easy or cheap job - particularly awkward on the 1.6 TDI engine. All fine for about 9 months until last week it went into limp mode because of an injector failure. It seems that VW group used a piezo-electric injector on these common-rail systems ... apparently they've subsequently changed suppliers and now use a more conventional solenoid-operated one! Let's hope the replacement proves more reliable. Incidentally it's only done around 50000 miles, not a marathon high-miler. Daughter's now thoroughly fed up with the car and doesn't really trust it
    I'm sure the underlying engine is fine - it's just the hi-tech emission-control stuff that's not up to snuff. My new car is a petrol model - I like the driveability and fuel economy of diesel, but these problems, and the current vilification of everything CI engined, has put me off.
     
  7. campingstoveman

    campingstoveman Active Member

    Mine is a 2009 Forrester with 41000 miles, bought it two years ago with only 25000, I couldnt afford to run a petrol car capable of towing two ton trailer
     
  8. robtheplumb

    robtheplumb Member


    Mondeo estate can tow 2 tonne and has an average MPG of high 30's, don't know what you get from the scooby but it's better than my van!
     
  9. campingstoveman

    campingstoveman Active Member

    Can get my wifes mobility scooter in a mondeo estate without taking it apart, 45 to 50 on a decent run 42 running around town.
     
  10. lambe

    lambe Member

    There's nothing wrong with VW 1.6 engines(2015) mine has done 100,000+ burns oil faster than a 2 stroke - 1litre/ 400mile, starts after a 30 second cranking- good that it has stop/start battery and starter or it would have no chance, sounds like a load of stones being rattled round in a tin. It still does 50 to the gallon and the tail pipe is like new. Oh and it costs £600 per service, and NEVER take the Siemens adaptive cruise control if optioned it emergency stops the car for leaves and crisp packets blowing by on the open road, loves trucks on roundabouts to etc etc
     
  11. highrange

    highrange Member

    You might recall that VW Group came up with an emissions "fix" ..... I didn't have the Skoda done as I'd heard too many bad reports. After the problems mentioned above, though, and discussions with a VW soecialspe, son-in-law took the car to be done last week. Allegedly it's ok now, but it's been back to the Skoda dealer twice in the last few days following the "fix"! At least any related problems should now be under a two-year guarantee ..... not holding my breath
     

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