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GM delays new technology diesel

By Matt Brogan |

GM has indefinitely delayed the release of one of the most advanced engines it has ever designed amid the current financial woes it is suffering.

The 4.5-litre Duramax diesel engine, which was intended for use in light-duty trucks such as the Chevrolet Silverado and GMC Sierra, featured unique cylinder heads that eliminate the intake and exhaust manifolds. It also had a lightweight block with advanced castings for the crankshaft-bearing journals and oil-circulation system.

“We have to make tough decisions right now,” said GM Powertrain spokeswoman Susan Garavaglia.

The eagerly awaited engine was due to have began production this time next year.


 
  • Rob

    Fools! Something like this could benefit them, especially if they were to licence the design/technology to third parties. There needs to be some foresight from GM here.

  • Simon

    “featured unique cylinder heads that eliminate the intake and exhaust manifolds”
    Sounds interesting, wonder how they get the gasses in/out?

  • Phill

    It seems as though General Motors is actually competing for the comedy prise with the ‘Dead Parrot’ routine care of Monty Python. Amazing.

  • Mark B

    I’ll say it to save someone else the trouble: imagine one of these babies under a commodore’s bonnet…

  • Reckless1

    This smacks of throwing out the baby with the bathwater.

    Perhaps it’s a very expensive engine to tool up for?

    Shame though, heavy vehicles have huge potential for fuel efficiency gains.

  • Phil C.

    Another short sighted dumb move that continues a legacy of 30 plus years of dumb moves by General Motors.

    This sounded like it had the potential to be a great engine.

    Ford are most definitely heading in the right direction with their range of vehicles and technologies.

  • Frenchie

    They spend the time and money to design what sounds like a brilliant engine, then to turn around and say they probably bring it out in a few years time.

    This kinda sounds like their EV-1 project!

    They never learn GM.

  • http://caradvise.com Schah7

    Mark B Hum,yeah but when it comes to diesel engine design.tech and up-to-date know how the Japs are way ahead
    of the Americans and the Europeans are ahead of the Japanese.
    So in reality the engine woundn’t be a patch on say the:
    V6/V8 Diesel that Ford produced along-side P.S.A which could very well end up under the bonnet of a Terri./Falcon.
    As Phil C. said Ford seem way ahead of G.M. in direction and focus.

  • swampdawg

    GM can go and bury it with their EV1 and other great ideas. I can’t figure out why they have gone broke.

  • Minnow

    Looks like they have built the Inlet, exhaust and turbo into one piece, similar to how BMW fit the turbo inside the V on their V8… and will have the intake valve and exhaust valve on the same side of the head, like old the old engines such as Toyota’s 3F. I Just wonder how they will keep the inlet air cool with it so close to the exhaust.