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Thread: Common Rail and Veggie oil - Report on presentation by Alexander Noack of Greasenergy

  1. #11
    Join Date
    Dec 2005
    Location
    Perth Western Australia
    Posts
    931

    Re: Common Rail and Veggie oil - Report on presentation by Alexander Noack of Greasen

    Key words Alga is using are "I purge it for at least 12klms with BD or diesel".

    I've rebuilt my 12HT after 280,000km - a piece of valve guide went through the turbo - and like Alga, the bores and ring lands were clean and I meticulous purge.

    Blending to minimise coking as the only strategy to address coking on a DI is only going to work IF you get the blend to a similar viscosity to diesel - and that's just conjecture.

    The strategy for a common rail should be the same. However a modded ECU to change things such as rail pressure, injector opening time, number of injector activations per engine rotation, and engine timing can also work if you know what you're doing - as Alexander does.
    Toyota Landcruiser 1988 HJ61 Manual Wagon
    12H-T turbo Direct Injection.
    Twin Tank setup runs on 100% WVO after warm up. 30 plate FPHE with 80C output, 12mm fuel lines
    Start up and shut down electric fuel pump feeds IP direct.
    Front 4WDSytstems Lokka, Rear ARB airlokka for quick escapes up sandhills. Performance GTurbo with 600mm FMIC gives 450nm @ 1700rpm at 20psi boost.

  2. #12
    Join Date
    Sep 2005
    Location
    WA
    Posts
    4,079

    Re: Common Rail and Veggie oil - Report on presentation by Alexander Noack of Greasen

    Quote Originally Posted by Dr Mark View Post
    Ok I'm calling bulltish on this:


    I wonder can anyone tell of any examples of oil "turning to jelly" and destroying engines.

    These kits cost the best part of $2K. That's how he justifies the cost - telling you that your engines might blow up if you don't.

    I've been running a Mazda BT50 and Merc OM613 on 50% WVO for several months now. I've just upped the Merc to 70% WVO and I'll be doing the same to the Mazda at the next refueul. I'm going to minimise coking by adding 5% low-octane petrol. I was running an OM603 on 90% WVO and 10% petrol for a while with no problems.

    Not sure how high I'll go with the WVO yet, but I'll keep you posted.

    There's a mob up in Balcatta that remap engines - I might have a chat to them and see what their experience with WVO is
    There have been reports of IDI diesels with excessive blowby allowing WVO fuel enter the crankcase and polymerise in the engine oil. I suspect that this is the same process causing the "jelly" in the DI engines.
    Life is a journey, with problems to solve, lessons to learn, but most of all, experiences to enjoy.

    Current Vehicles in stable:
    '85 Mercedes Benz W123 300CD Turbodiesel single tank using 95% used cooking oil and 5% to 10% misfuel (where someone had filled diesel vehicle with petrol).
    '06 Musso Sports Crew Cab. Running on used cooking oil with 5% to 10% misfuel.
    Toyota Camry Hybrid - (Wife's Car)

    Previous Vehicles:
    '90 Mazda Capella. (2000 - 2003) My first Fatmobile. Converted to fun on veggie oil with a 2 tank setup. Died when supercharger stuck at max boost for weeks. Stretched head bolts.
    '80 Mercedes 300D. 2 tank conversion [Sold]
    '84 Mercedes 300D. 1 tank, no conversion. Replaced engine with rebuilt OM617A turbodiesel engine. Finally had good power. Donor for current Fatmobile coupe. (body parted out and carcass sold for scrap.)
    '99 Mercedes W202 C250 Turbodiesel (my darling Wife's car)[sold]
    '98 Mercedes W202 C250 Turbodiesel (my car)[sold]



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  3. #13
    Join Date
    Oct 2011
    Location
    Perth
    Posts
    128

    Re: Common Rail and Veggie oil - Report on presentation by Alexander Noack of Greasen

    There are more things to think about with WVO on a common rail than just coking. I just destroyed the IP on my BT50 with a 70% WVO blend. It couldn't handle the viscoisity. But my Merc (OM613) ran fine on the same blend.

  4. #14
    Join Date
    Dec 2005
    Location
    Perth Western Australia
    Posts
    931

    Re: Common Rail and Veggie oil - Report on presentation by Alexander Noack of Greasen

    I never said coking was the only issue with WVO in common rail.

    So what do you put this failure down to Mark?

    Different quality pumps?
    or is it just a matter of time for your Mercedes pump?
    Last edited by Tim-HJ61; 11th October 2017 at 10:03 PM.
    Toyota Landcruiser 1988 HJ61 Manual Wagon
    12H-T turbo Direct Injection.
    Twin Tank setup runs on 100% WVO after warm up. 30 plate FPHE with 80C output, 12mm fuel lines
    Start up and shut down electric fuel pump feeds IP direct.
    Front 4WDSytstems Lokka, Rear ARB airlokka for quick escapes up sandhills. Performance GTurbo with 600mm FMIC gives 450nm @ 1700rpm at 20psi boost.

  5. #15
    Join Date
    Oct 2011
    Location
    Perth
    Posts
    128

    Re: Common Rail and Veggie oil - Report on presentation by Alexander Noack of Greasen

    Well, I put it down to too much pressure being generated by the higher viscosity of the oil. It was actually a double whammy - I'd been running it OK on 50% WVO for months, and I foolishly decided to try 70% at the same time that I switched from the soybean oil tank to the cottonseed oil tank - the latter has higher viscosity than the former. But the Merc ran fine on 70% cottonseed. But it scared me off - I'm back to running the merc on dino, now that I have the WVO sorted for the Landcruiser. BTW the Merc will be on the market soon - it's a W210 E320 with the very rare (in Aust) OM613 motor

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