Good Clean - Cleaning Inlet Manifold, EGR, Intercooler & Pipes

Aug 1, 2005
2,695
0
Cullompton . Devon
With no oxygen going into the engine there can be no combustion. Even if you blow a piston and your burning the sump oil instead of diesel with no oxygen entering the engine there can be no internal combustion/fire.
 

T. Spark

Guest
So you cant stall it, as there is another fuel source.

The real question is, does it run out of oil or blow up first? lol. I dont want to find out!
 

muddyboots

Still hanging around
Oct 16, 2002
5,739
1
So you cant stall it, as there is another fuel source.

The real question is, does it run out of oil or blow up first? lol. I dont want to find out!
Well in theory you could stop it, if you cut off the oxygen supply (which is needed for the fuel to burn) as devonmikeyboy suggested, by pulling off pipes and blocking the air inlet.

But in reality, I wouldn't fancy messing round in an engine bay next to an engine revving itself to death that could pop at any second....and your average non-technical car driver wouldn't know what to do anyway.
 

tom167

bucksvag.net
Mar 27, 2006
201
0
Milton Keynes
Of course you could stall it. No different to who it would stall if it was running on diesel, if it cant turn the transmission because of the load imposed on it, it will stall. Be easier to stall when running on oil than diesel as less power would be produced and higher heat/compression is required to keep it running.

The reason you cant just switch them off is because normally its goverened by the fuel being injectedl; when you turn the key to the off postition the injectors stop injecting. But as far as stalling goes it will still behave the same as if you tried to pull away in 5th.
 

jabbasport

Guest
We had a car here about 6 months ago, completely standard, driven by an old chap at about 55mph everywhere, always serviced it himself and always overfilled the oil. One day the engine decided to suck all of the oil out the intercooler. It started smoking and wouldnt slow down, the driver put it into 5th gear and let the cluch out and actually commented that 5th gear and foot hard on the brakes couldnt stop the car and the clutch sounded like it was slipping with the ammount of torque produced. Evidently the engine spat out a rod, snapped a few and left some nasty holes in the block...

Anti-stutter valve didn't do anything to stop it...
 

tom167

bucksvag.net
Mar 27, 2006
201
0
Milton Keynes
Was that whilst driving? Yeh i think these have probably got enough torque to keep it moving, you'd really have to be stationary to make sure.

Its what we do if trucks run away, but saying that the brakes are a bit more brutal on a lorry lol.
 

Robb1990

Active Member
May 14, 2008
299
0
Anti shudder wont do anything as it only flicks closed for a second or so on switch off, you'd have to hold it closed, but you'd have quit a bit of protection as it'd easy to access by leaning over the O/S wing.

Even if it didnt do anything, its still in the back of your mind that it's there, and its a viable option to at least *try* to stop the engine, cutting off fuel or air.
 

Muttley

Catch that diesel!
Mar 17, 2006
4,987
31
North Kent
No, afraid not, the valve is vacuum actuated via a little vacuum switch, and only closes for a few seconds at engine switch-off. Default position is open. Has to be, really, or you'd never get the engine started.
 
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