Greetings Posted November 14, 2012 Report Share Posted November 14, 2012 (edited) My friend just told me about a problem he had with his Mitsubishi yesterday, he experienced something called diesel engine runaway. Never heard of it before and neither did he, so I can only imagine the expression on his face when a car he already hates starts to rev beyond the redline without the key in the ignition. Here's a clip of what it looks like Edited November 14, 2012 by Greetings Quote Link to comment Share on other sites More sharing options...
Revolver Posted November 14, 2012 Report Share Posted November 14, 2012 How do you stop that? A diesel engine doesn't need electricity! Quote Link to comment Share on other sites More sharing options...
dann2707 Posted November 14, 2012 Report Share Posted November 14, 2012 Don't you have to put it in gear 4 or 5 or something to stall it? Quote Link to comment Share on other sites More sharing options...
Skoze Posted November 14, 2012 Report Share Posted November 14, 2012 Seen that happen to a Defender before, must have been gutting. Basically starts running itself on the engine oil and you can't stop it unless you stall the engine somehow - that's the one thing i dread having happen to mine now it's diesel power! Quote Link to comment Share on other sites More sharing options...
george_seamons Posted November 14, 2012 Report Share Posted November 14, 2012 Either stall it or block off the air intake so it suffocates itself. Sounds horrible though, would hate to feel that helpless watching my engine lunch itself! Quote Link to comment Share on other sites More sharing options...
N.Wood Posted November 14, 2012 Report Share Posted November 14, 2012 Why would it start doing that in the first place? Would be kinda embarassing if it happened in a petrol station or somewhere 'sorry guys, just gotta wait for it to kill its self' Quote Link to comment Share on other sites More sharing options...
Greetings Posted November 14, 2012 Report Share Posted November 14, 2012 (edited) Why would it start doing that in the first place? Would be kinda embarassing if it happened in a petrol station or somewhere 'sorry guys, just gotta wait for it to kill its self' Engine oil getting into the intake manifold through a leaky turbo for instance. That causes the revs to increase, the turbo to spin faster, leak more and so the cycle continues. Edited November 14, 2012 by Greetings Quote Link to comment Share on other sites More sharing options...
Tom Booth Posted November 14, 2012 Report Share Posted November 14, 2012 I've seen that happen to a astra van before, quite scary to be honest. Just ran at mad rpm till it starved itself of oil, sounded awful. Quote Link to comment Share on other sites More sharing options...
Bucky Posted November 14, 2012 Report Share Posted November 14, 2012 i've had it happen in a Fiat Ducato van before. it revved it nackers off for about 2 minutes then just slowed and slowed until it seized up. Quote Link to comment Share on other sites More sharing options...
greg1040 Posted November 14, 2012 Report Share Posted November 14, 2012 Cars started making a nocking noises when I lift my clutch up 1 min it does it next it doesn't. Could this be gear box related? Quote Link to comment Share on other sites More sharing options...
Tony Harrison Posted November 14, 2012 Report Share Posted November 14, 2012 I got away with it once. A few years back my dad gave me his Vectra, which had just passed an MOT and I'd spent ages replacing the injector seals on. Driving back from the MOT it started making funny sounds and speeding up, so I pulled onto a grass verge and put the car in neutral, then the revs went rocketing up. I turned the key and then it hit me - of course, it's compression ignition. So I jumped back in, shoved it in 5th and dropped the clutch against the brake. It launched forward and stalled. Fitted a replacement turbo and cleaned it out and it ran, but not properly because a sensor or two were caked in oil. Then I got a company car and the Vectra still sits outside my dad's workshop... Quote Link to comment Share on other sites More sharing options...
Gandalf the Yellow Posted November 14, 2012 Report Share Posted November 14, 2012 (edited) my mate filmed/edited this recently, thought it was pretty cool. Steve Edited November 14, 2012 by Gandalf the Yellow Quote Link to comment Share on other sites More sharing options...
Pashley26 Posted November 15, 2012 Report Share Posted November 15, 2012 Cars started making a nocking noises when I lift my clutch up 1 min it does it next it doesn't. Could this be gear box related? Yup. It is either the diff bearings chattering or the release bearing. If it is fine whilst the clutch is disengaged (pedal down) but rattled when the clutch is engaged then 9/10 it is the release bearing. Quote Link to comment Share on other sites More sharing options...
Jolfa Posted November 15, 2012 Report Share Posted November 15, 2012 I'm going to make one of my bold statements that everybody says WTF?! at. Demon Shine is by far and above the best cleaning product on the market, by miles. You can buy 2L of it for £2, it's available pretty much everywhere, it comes in a squirty bottle so you don't need to dispense it or faf about and it's great at everything. You know I can stick my car through the car wash, £1.50 and 2 minutes later it's shiny at the other end and I don't have to f**k about Quote Link to comment Share on other sites More sharing options...
greg1040 Posted November 15, 2012 Report Share Posted November 15, 2012 Yup. It is either the diff bearings chattering or the release bearing. If it is fine whilst the clutch is disengaged (pedal down) but rattled when the clutch is engaged then 9/10 it is the release bearing. Car doesn't have a diff so it could be the release bearing is this a big job to fix? Quote Link to comment Share on other sites More sharing options...
Pashley26 Posted November 15, 2012 Report Share Posted November 15, 2012 (edited) Every car has a differential of sorts. Wether it is a limited slip or an open diff is another question. The diff will usually have support bearings on either end of it, when the bearings wear they can cause chattering when there isn't torque applied through the box. - Currently on the way to R Tech for a custom TIV mapping session on a Mk5 TFSI Edited November 15, 2012 by Pashley26 Quote Link to comment Share on other sites More sharing options...
Greetings Posted November 15, 2012 Report Share Posted November 15, 2012 Work on the M3 slowly coming to an end. Reworked fuel system with swirl pot and a Bosch Motorsport pump, fuel lines now on the inside of the car for maximum safety. The pump in the fuel tank needed replacing too because it imploded Replaced both front wishbones, one is new, ARB's now mounted to the wishbones not the struts. Will change back to strut mounts once I get proper suspension, probably going to go for AST. The D2 mounts are shit, caused me a DNF on the last comp. Diff ventilation fixed, all seals replaced, chassis strengthened, rust removed. Propshaft bearing replaced, two universal joints on half shaft replaced and a strut brace added for the front end. Should be finished tomorrow, needs aligning and hopefully that's it. Air intake needs re-working, also need to install HID's on low, long beam and fogs because the next comp will be a night event. But that's not for another 3 weeks. Before, this black bit was a big hole 1 Quote Link to comment Share on other sites More sharing options...
RobinJI Posted November 15, 2012 Report Share Posted November 15, 2012 (edited) M3's looking good I take it this bush is meant to be off-set like that? I knocked up an exhaust for the Scirocco today, still needs a tail-pipe and hangers adding and the down-pipe needs finishing, 2.5" all the way through with a 3" down-pipe. I'm a little worried it might be louder than I want but hopefully the turbo will keep the volume sensible. If not it'll be easy enough to add a centre-box, there's loads of space where the gear-shifter used to be now it's internal. Edited November 15, 2012 by RobinJI 1 Quote Link to comment Share on other sites More sharing options...
Pete.M Posted November 15, 2012 Report Share Posted November 15, 2012 Nice. Are custom exhausts one of the things you'll be offering to customers? Quote Link to comment Share on other sites More sharing options...
RobinJI Posted November 15, 2012 Report Share Posted November 15, 2012 (edited) Cheers. They could be, but it's a seriously competitive market, I doubt I could compete with the exhaust specialists. I like doing them for my own exhausts, partly because they're satisfying thanks to how quick and big they are, and partly because I'm really fussy about how they fit thanks to my habit of running cars lower than's strictly sensible. The business is going to be building a bit slower than I'd originally planned, I'm going to start looking for work in a week or 2 just because I want the security and lack of stress that comes with a 9-5. The business will still happen, but it'll be in the evenings and weekends to build up some experience and tools, then if things are looking like I could make a living off them, I'll switch to doing it full time. Edited November 15, 2012 by RobinJI Quote Link to comment Share on other sites More sharing options...
Pete.M Posted November 15, 2012 Report Share Posted November 15, 2012 Fair enough, sounds like a good plan. If I come across some moneys in the next few years then fingers crossed I'll be looking for some sort of custom exhaust. Quote Link to comment Share on other sites More sharing options...
Prawny Baby Posted November 16, 2012 Report Share Posted November 16, 2012 very much looking forward to seeing this come together Robin Should be an awesome little wagon. Quote Link to comment Share on other sites More sharing options...
Greetings Posted November 16, 2012 Report Share Posted November 16, 2012 M3's looking good I take it this bush is meant to be off-set like that? Indeed, increases caster. My starting number is #7 tomorrow, not linking it at all. 1-15 are almost all Evo 9's, 10's and STR's which means a lot of pressure. Quote Link to comment Share on other sites More sharing options...
RobinJI Posted November 16, 2012 Report Share Posted November 16, 2012 (edited) That's cool I figured it'd be a geometry thing, I was just wondering because the other side seems to be set pretty differently. Edited November 16, 2012 by RobinJI Quote Link to comment Share on other sites More sharing options...
Tom Booth Posted November 16, 2012 Report Share Posted November 16, 2012 Ep3 civic type r owners amongst us, what genuine mpg figures fo you get pootling around town? Quote Link to comment Share on other sites More sharing options...
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