Car engine damage whilst in garage

Splott

jtm07 wrote: »

It is an2005 plate. The engine didn't burn up the sump oil as I stopped it before it did.

Really it did, that is why it suddenly started screaming its nuts off revving far beyond what the governer would allow it to do. You just stopped it before it ran out but the reason it started to rev out of control was because it was running on its own engine oil fed into the engine via the blown oil seal in the turbo.

Basically if you don't stop the engine before it gets to the red line, all bets are off as to whether or not it survives to be able to be used again. And with it doing that for even a minute, the outcome isn't usually a good one.

In short the terminal damage occurred before the recovery truck even arrived.

pinkteapot

Quick question... We have a diesel Mondeo with a turbo... If this happened to me while driving I'd be terrified!

Someone earlier mentioned stalling it to stop the engine. Firstly, even with the engine revving would the brakes bring it to a halt? Would you have to drop into neutral before the brakes could stop it?

Secondly, how would you then stall it? Or if you can stop it do you just switch the ignition off?

Splott

The brakes would stop it but you need to be in a high gear. Putting it in neutral will just allow it to rev until it explodes - you need to leave it in gear.

Switching the ignition off does nothing - the reason it is revving out of control is because it is running off its own engine oil and turning off the ignition doesn't stop that.

TBH it is quite rare and more likely to occur on a car that doesn't get the oil changed regularly. It is just one more reason to keep a car well maintained. My last Mondeo diesel I sold had 170k on and never had an issue.

red_eye

pinkteapot wrote: »

Quick question... We have a diesel Mondeo with a turbo... If this happened to me while driving I'd be terrified!

Someone earlier mentioned stalling it to stop the engine. Firstly, even with the engine revving would the brakes bring it to a halt? Would you have to drop into neutral before the brakes could stop it?

Secondly, how would you then stall it? Or if you can stop it do you just switch the ignition off?

switching off the ignition would only cut the fuel pump. in this case the turbo would be supplying the fuel to the engine in the form of oil. only way to stop is to stall the engine in what ever gear you are in

vaio

pinkteapot wrote: »

Quick question... We have a diesel Mondeo with a turbo... If this happened to me while driving I'd be terrified!

Someone earlier mentioned stalling it to stop the engine. Firstly, even with the engine revving would the brakes bring it to a halt? Would you have to drop into neutral before the brakes could stop it?

Secondly, how would you then stall it? Or if you can stop it do you just switch the ignition off?

In the very unlikely event of it running away you need to leave it in gear and get on the brakes hard and fast. The brakes on any modern car are strong enough to stop it and stall even an out of control engine as long as you do it quickly.

Try and do it gently or in two bites and you run the risk of fading the brakes which leaves you with an out of control engine and ineffective brakes