| Forum Home | ||||
| PC World Chat | ||||
| Thread ID: 54165 | 2005-02-05 11:22:00 | Holden Isuzu - Engines rev up and explode | george12 (7) | PC World Chat |
| Post ID | Timestamp | Content | User | ||
| 321834 | 2008-04-23 16:09:00 | I've gotta see this to believe it . Engines do not just "blow up" with uncontrolled RPM . The old Detroits (2-cycle, supercharged AND turbo charged) could go out of sight for RPM if they stuck the rack or the governor weights went haywire . . but that's a totally unrelated situation to modern gas or diesel engines . There are cases here where carburetted engines cannot handle the E-85 and other gasoline that is heavily ladened with methanol that won't run . . especially restart after fueling up . . but that's a different story too . There WERE cases where the California Air Resources Board (CARB) mandated that Diesel #2 be supplanted with Diesel #1, which they considered an upgrade, and the Roosa-Master and even some Bosch in-line injection pumps seized and caused loss of "motivational capacity" to cite their lingo, and the state hadda replace the pumps and injectors when they were sued . . . but again, that is different too . All modern engines, diesel OR gasoline, are computerized and they have limiters that will not allow things to get so far outta hand . Some of the fly-by-wire systems could conceivably get crazy if the link between the throttle potentiometer signal got somehow "lost" and the computer thought the driver was calling for WOT . . . but again, that's kinda remote . I think this is just another old woman's story and not very likely . If there's a grain of truth to this rumor, then I'd be looking to poor fuel or bad mixtures in the refineries for a reason for a diesel to run away uncontrollably . Putting lighter vapor pressured additives in diesel COULD cause uncontrolled RPM, but not very likely on the scale cited here . Residual gasoline in the delivery truck that also carried diesel could be the culprit . . . or a rather ignorant delivery truck driver could have dropped gasoline or even Av-Gas into a diesel underground fuel tank and that is getting into the fuel supply . It might even be getting into the system at the refinery or tank farm . If it's a gasoline-only engine run away problem, then there has to be some other mitigating problem that is common to Upsidedown Land only . :D Ya gotta see the bigger picture here . |
SurferJoe46 (51) | ||
| 321835 | 2008-04-24 13:14:00 | These engines are self-rectifying. None ever demonstrate the terminal smoke show twice. | R2x1 (4628) | ||
| 321836 | 2008-04-25 00:56:00 | Always remember a story my friend told me. An old lady in a seventies Skoda pulled away from the traffic lights. The engine revved harder and harder and my mate thought that she must change now. Anyway, the engine blew up (much to his amusement) and it all when quiet. They just don't make them like that any more :D | dolby digital (5073) | ||
| 1 2 | |||||