Turbodiesel Suicide
Discussion
Here's an interesting phenomenon that I remember a friend telling me about as it happened to him in a turbo-diseasel work van.
http://www.youtube.com/watch?v=YmI7Nx026jU
I believe it is caused by turbo bearing failure. The engine then sucks its own engine oil from the turbo oil feed up the inlet manifold and runs flat out on it till all the sump oil is gone and then seizes and/or blows up.
For some reason all the images and references you find for this on the web are for BMWs.
http://www.youtube.com/watch?v=YmI7Nx026jU
I believe it is caused by turbo bearing failure. The engine then sucks its own engine oil from the turbo oil feed up the inlet manifold and runs flat out on it till all the sump oil is gone and then seizes and/or blows up.
For some reason all the images and references you find for this on the web are for BMWs.
Seen this happen on a VW Golf mk1 1.5Diesel(friends sister),excess crankcase pressure blowing loads of engine oil into the air intake manifold(knackered piston rings/bores)dident know this engine revved to 10k RPM on its ownlondon buses with the Gardner180 motor done this regular,so i am told.
Co2 works safely without fail, it just starves the engine of Oxygen. I jumped into a runaway Audi A4 a few years back and was about to stall it, it was then that I found out the car was automatic... nice! I instantly remembered what the Audi training guy in Nottingham told me about the Co2, and it worked a treat... just make sure it's not a water type extingiusher... or it'll go bang bang bang...
I witnessed a huge Leyland (IIRC) engine do this in the back of a bus at a bus depot, the noise and smoke was incredible, the mechanics tried 'feeding it' with a huge lump of rag, it spat the remains out of the exhaust!, it didn't stop till a couple of rods let go and showered lumps of crank case all over the apron area outside the work shop!! Impressive to watch!!
qczhao said:
Interesting phenomenon.
Why does the revs keep going up and up though? I don't understand that part.
If I understand correctly you control the speed of a diesel by altering the fueling.Why does the revs keep going up and up though? I don't understand that part.
When it starts burning its own oil it has loads of fuel avalable and will just keep on reving as there isnt anything to stop it.
Holst said:
qczhao said:
Interesting phenomenon.
Why does the revs keep going up and up though? I don't understand that part.
If I understand correctly you control the speed of a diesel by altering the fueling.Why does the revs keep going up and up though? I don't understand that part.
When it starts burning its own oil it has loads of fuel avalable and will just keep on reving as there isnt anything to stop it.
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