BMW 1-series Timing Chain snapped

[fxman]

Nanook said:

Where's the sealed container?

I assume the engine is sealed. Mine seals pretty good except for the bit I bent/compressed slightly out of shape.

[anonymous-user]

fxman said:

But I genuine believe well worn oil is more efficient. I did not get that info from anywhere but my gut. Makes no difference if I am wrong. I feel good about it.

How would oil ‘wear’?

So you believe oil with particles of metal and engine by-products is A better choice to lubricate things than oil that is clean?

[TooMany2cvs]

fxman said:

TooMany2cvs said:

Back to posing with "rolex" and "champagne" on instagram for FXman, you mean?

You are prejudiced against BMW owners.

No, I'm referencing your user name back to this thread :
https://www.pistonheads.com/gassing/topic.asp?t=17...

[fxman]

Nanook said:

If it's sealed, how does the air get in? How does the fuel get in?

How do the exhaust fumes get out?

And what are the crankcase breathers for?

I'm not suggesting for a second that I'm going to change your mind here. Just that your basing it on nonsense.

Each of those exits have seals on them to prevent engine oil loss. Over time the seals degrade/wear and oil is loss. The gist of it is that we all leak. I don't buy your leak is better than my leak.

[fxman]

TooMany2cvs said:

No, I'm referencing your user name back to this thread :
https://www.pistonheads.com/gassing/topic.asp?t=17...

Wrong man. I have very few posts up to this point. I have never been to that thread.

[fxman]

yonex said:

How would oil ‘wear’?

So you believe oil with particles of metal and engine by-products is A better choice to lubricate things than oil that is clean?

I presume when oil particles are banged together between metal parts, it will break apart. The broken particles are smaller therefor easier to flow. Hence my belief in increased efficiency.

New oil is too viscous therefore act as resistance for the engine. I find reduced MPG on new oil is quite noticeable.

[TooMany2cvs]

fxman said:

TooMany2cvs said:

No, I'm referencing your user name back to this thread :
https://www.pistonheads.com/gassing/topic.asp?t=17...

Wrong man. I have very few posts up to this point. I have never been to that thread.

[fxman]

Nanook said:

I don't have a leak. My car does burn a little bit of oil though.

How do you know it was burnt? The dealer man said so? My bet is it's leaked into the exhaust system and came out as black smoke.

[anonymous-user]

Nanook said:

fxman said:

I presume when oil particles are banged together between metal parts, it will break apart. The broken particles are smaller therefor easier to flow. Hence my belief in increased efficiency.

New oil is too viscous therefore act as resistance for the engine.

I like you. Please stay.

Actually, you're right. You should probably take your engine oil out and replace it with something like olive oil or even just water. Must less viscous, so less internal resistance. Lower friction, therefore more power.

You're really onto something there!

Just take the oil out and leave air, it's a lot thinner than any sort of oil so your mpg would probably increase a bit and that pesky oil leak would be fixed at the same time, win win.

Alternatively, grow a brain, although tbh I find it hard to believe anyone can be this terminally stupid unless they have a starring role in a reality tv show, so I suspect a bit of trolling might be occuring.

Edited by anonymous-user on Sunday 23 September 12:52

[Jimmy Recard]

fxman said:

How do you know it was burnt? The dealer man said so? My bet is it's leaked into the exhaust system and came out as black smoke.

Out of interest, do you think that oil coming out of the exhaust as smoke is unburnt?

[fxman]

JimSuperSix said:

Just take the oil out and leave air, it's a lot thinner than any sort of oil so your mpg would probably increase a bit and that pesky oil leak would be fixed at the same time, win win.

Alternatively, grow a brain.

The use of oil is a compromise between introducing resistance and providing barriers between mechanical parts. Running the engine via a vacuum lubrication is the most efficient. But the engine will wear out the soonest.

[fxman]

Jimmy Recard said:

Out of interest, do you think that oil coming out of the exhaust as smoke is unburnt?

If combustion is the burning, then the oil reaching the exhaust is unburnt. It's merely "ironed" by the hot metal.

[TooMany2cvs]

fxman said:

Jimmy Recard said:

Out of interest, do you think that oil coming out of the exhaust as smoke is unburnt?

If combustion is the burning, then the oil reaching the exhaust is unburnt. It's merely "ironed" by the hot metal.

<phew> I do hate creased oil coming out of the tailpipe.

[fxman]

TooMany2cvs said:

<phew> I do hate creased oil coming out of the tailpipe.

Hope so. The MOT man now days has the powers to impound your car if too much oil is coming out of the back. They have not a single thing to say for oil coming out at the font like mine. Some of you are at far greater risk than I in getting into trouble because you don't know where your oil has gone.

[Deep Thought]

fxman said:

TooMany2cvs said:

<phew> I do hate creased oil coming out of the tailpipe.

Hope so. The MOT man now days has the powers to impound your car if too much oil is coming out of the back. They have not a single thing to say for oil coming out at the font like mine. Some of you are at far greater risk than I in getting into trouble because you don't know where your oil has gone.

They can and will fail a car for leaking oil, if they spot it.

[RemyMartin81D]

Deep Thought said:

fxman said:

TooMany2cvs said:

<phew> I do hate creased oil coming out of the tailpipe.

Hope so. The MOT man now days has the powers to impound your car if too much oil is coming out of the back. They have not a single thing to say for oil coming out at the font like mine. Some of you are at far greater risk than I in getting into trouble because you don't know where your oil has gone.

They can and will fail a car for leaking oil, if they spot it.

Only if it's bad enough, and it's not a new power either.

[TooMany2cvs]

fxman said:

The MOT man now days has the powers to impound your car if too much oil is coming out of the back.

Oil (whether nicely smoothed or burnt) out the tail pipe would count towards HC - which has been a fail since emissions started being testing.

fxman said:

They have not a single thing to say for oil coming out at the font like mine.

The test changed this May to include oil leaks - the criteria for a fail is very loose, 75min diameter pool in 5 minutes, or cumulative equivalent from multiple leaks.

[Deep Thought]

RemyMartin81D said:

Deep Thought said:

fxman said:

TooMany2cvs said:

<phew> I do hate creased oil coming out of the tailpipe.

Hope so. The MOT man now days has the powers to impound your car if too much oil is coming out of the back. They have not a single thing to say for oil coming out at the font like mine. Some of you are at far greater risk than I in getting into trouble because you don't know where your oil has gone.

They can and will fail a car for leaking oil, if they spot it.

Only if it's bad enough, and it's not a new power either.

Indeed.

[fxman]

TooMany2cvs said:

Oil (whether nicely smoothed or burnt) out the tail pipe would count towards HC - which has been a fail since emissions started being testing.

Who's talking about a fail? They have the right to stop you driving the car away.

TooMany2cvs said:

The test changed this May to include oil leaks - the criteria for a fail is very loose, 75min diameter pool in 5 minutes, or cumulative equivalent from multiple leaks.

Well, I don't have a pool of oil. I just have a rusty AC compressor. The MOT man passed it with flying colours only the other day.

OK, that's enough talk with clueless internet people. I have work to do. Bye bye.

[Roller89]

Nanook said:

Is your point here just the use of the particular word? Don't you like the word 'stretch'?

Or do you mean something more, as in this context, stretch, elongation, plastic deformation, pretty much all mean the exact same thing.

No, the correct term in this specific context is elongation. It was mentioned that the dealers don't inspect the chain - if they were they would measure the elongation on the chain, not stretch or plastic deformation.

Its a small point, but in terms of diesel engine maintenance (if the engine were designed to allow inspection and maintenance of the chain), this is the terminology. Interestingly, one of the places that will wear most heavily when contaminated lube oil is used will be the chain, as the small holes in spray lubricators block quickly.