my engine ran away - page 1 - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• my engine ran away by oldskool rich on 27 Feb, 2008 15:53
• the other night i decided to crank my boost up, was running about 30psi, very very fast indeed but wen i pulled off the accelerator the exhaust would make the loudest woooosh ive ever hurd in my life.
  
  the next morning on my way to work, happily driving along, it went woosh as normal then just stopped going wooosh. looked at my boost gauge, and i was running negative 1 bar (very strange) and all power had gone, got to sum trafic lights, all of a sudden the truck starts reving its tits off.
  was sitting at 5000rpm and fire started cuming out the exhaust and more smoke than i even thought was possible. took keys out, disconected battery, pulled fuel solenoid wire off, undid my injectors and still it was doing 5k :shock:  :shock:  :shock: so i pulled the air pipe off and put my hand over the turbo which eventualy killed it (after nearly sucking the flesh off my hand) minits later 2 fire engines arived to put me out, lol
  
  i know what ur thinking, but at 5k it wud of clutch slipped or just pulled a burn out, my clutch isnt very gud
  
  it turns out my turbo destroyed its self and the engine was running off the oil feed to the turbo :roll:
  
  took sum pics of the damage
  
  
  
  duno where the bolt off the end went,
  
  
  
  
  lol arnt these 2 shaft ment to be just 1 shaft? it used up all my engine oil, engine was so nearly seezed wen i went to start it, cant believe it didnt kill it :roll:
  
  i managed to get hold of a t3, which is now on, although im not too impressed, seems even lagyer than the k24 i had
  
  
  
  also has an oil leak, does anyone know where i can get an oil seal kit from? and how easy it is to change?
• #1 by burn_your_money on 27 Feb, 2008 16:07
• :shock: wow
  
  I can't believe you have time to do all the crap before you finally stopped the engine. I'm surprised it didn't throw a rod or blow a headgasket
• #2 by oldskool rich on 27 Feb, 2008 16:22
• no way i built this engine to be indistructable
  
  (tbh i was realy suprised i didnt get a rod through my face, and im even more suprised that it still drives) although these engines are stronger than you think.
• #3 by burn_your_money on 27 Feb, 2008 16:40
• I know they are super strong. I drove one without a rad for about a month before the head finally warped and left me stranded on the highway. It was my cousin's rabbit and as much as I insisted that he needed to stop driving it and fix it he said it was fine so we both kept using it. Of course if broke when I was driving it so it's my fault, but anyways.
  
  I'd drive til it hit redline on the temp gauge, pull over for 5 minutes and then repeat.
• #4 by jtanguay on 27 Feb, 2008 16:42
• wow... yea this is a testament to how much abuse they can take...
  
  i wonder how the rings are doing?  must be more blowby now  maybe that is why the turbo isn't as good? seems like everyone says the T3 is better than the K24.
  
  what type of oil did you have in the motor?
• #5 by the caveman on 27 Feb, 2008 17:24
• It's not just the diesels that are tough. About 15 years ago where i used to work we had a good customer who had had his 16v rocco stolen but then recovered somewhat beat up . Since it had more than 250,000k on it and he wanted something new he asked us " could you see if there's any engine damage wink wink"  . As by instructions of the service manager  i dumped  all the oil out and then started it and let it idle. 20 minutes go by and the lifters were barely noisy. Rev rev rev the crap out of it for another 20 minutes until i was fed up . The manager then told me to take some $ for the phone and drive it around for a while. I drove it for an hour in town and then a bit on the expressway, making sure i redlined it in every gear. Finally brought it back, put some fresh oil in it and gave it back to him. The customer drove it and sold a couple of months later and we would still see it around once in a while. TOUGH!
• #6 by jtanguay on 27 Feb, 2008 18:04
• Quote from: "the caveman"

  It's not just the diesels that are tough. About 15 years ago where i used to work we had a good customer who had had his 16v rocco stolen but then recovered somewhat beat up . Since it had more than 250,000k on it and he wanted something new he asked us " could you see if there's any engine damage wink wink"  . As by instructions of the service manager  i dumped  all the oil out and then started it and let it idle. 20 minutes go by and the lifters were barely noisy. Rev rev rev the crap out of it for another 20 minutes until i was fed up . The manager then told me to take some $ for the phone and drive it around for a while. I drove it for an hour in town and then a bit on the expressway, making sure i redlined it in every gear. Finally brought it back, put some fresh oil in it and gave it back to him. The customer drove it and sold a couple of months later and we would still see it around once in a while. TOUGH!

  
  
  sounds like he might have used that slick 50 crap...  apparently people have run engines dry with similar results... even in an airplane!!!!  :shock:
  
  on my old golf before i got it my mom drove it... we got an oil change and then she took it home... on the way back it started overheating... so she pulled over and let the engine cool.  started it back up and then on her way.. did this a few times to 'baby' it home.  turns out the oil nut came off and there was no oil in the pan  :shock:  i drove that car for another 2 years after my sisters 2 years  :lol: these engines are pretty damn durable.. although the blowby after that incident was pretty bad... the oil filter would be SOAKED in oil (new filter wouldn't last more than a week or so, but seeing rpm's of 6k and some 7k  :twisted:) but didn't burn much oil at all.
  
  i've heard similar stories about nissan's etc though, and i'm sure many others out there  
• #7 by smoken u on 27 Feb, 2008 18:16
• my buddy had the same thing happen to his cummins. what happened is that the fuel solenoid fragmented itself in the pump causing it to jam at wide open. which made the fuel shutoff useless. also we noticed when we dissasemble his pump, the max fuel screw had jammed the boost pin in the full boost position, which will give it the flame out the pipe. and burned up the valves and the turbo. this is the reason we converted it to manual shutoff.
• #8 by bevboyy on 27 Feb, 2008 20:45
• Damn that is some damage! :shock:
• #9 by bert on 27 Feb, 2008 23:54
• its pretty scary to hear a diesel running flat out,let alone be able to unbolt injector lines,mine done that on the m5 from gretna green to birmingham,a 1.6 na mk1,i stopped it by braking hard,threw air filter away,wiped exess oil from inlet manifold,started it up got it home,wouldnt start from cold after that  :cry:  killed it,went off a tow and run ok,never from cold
  Bert
• #10 by jimfoo on 28 Feb, 2008 06:24
• Since you had the boost that high, I wonder if the whoosh you heard when you let off the gas wasn't surge, which then broke the shaft on the turbo? I have always wondered how well 2 stroke motorcycle reed valves might do at preventing it.
• #11 by KTZed on 28 Feb, 2008 08:36
• My T3 makes that same surgey woosh when I let off although im only running 15psi and its not very loud....time to get creative with BOV ideas.
• #12 by Op-Ivy on 28 Feb, 2008 10:03
• Wow! Glad you were able to stop it! Look at that turbo, it absolutely scorched! How long was it going for? What engine do you have?
• #13 by jimfoo on 28 Feb, 2008 10:27
• Every time I look at the title, I keep wanting to ask if you caught it and brought it back home.  :lol:    :lol:
• #14 by Vanagoner on 28 Feb, 2008 19:47
• I'm wondering how your hand is doing :shock: