BMW 1-series Timing Chain snapped

[TooMany2cvs]

fxman said:

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.

Riiight. So you're saying that, even if it passes, they can stop you driving it away if there's some oil comes out, tidily folded?

Here's a clue, they can't stop you driving it away - even if it fails badly.

[Agent XXX]

rallycross said:

Its a much bigger problem than that, it affects a wider year range, a simple summary is avoid any BMW

There was never a proper recall, BMW have sneakily sidestepped their responsibility for building crap engines.

Fixed that for you.

[Deep Thought]

fxman said:

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

EFA

[HannsG]

I have a 125i coupe of the same era. Hope this is not common on those

[rallycross]

HannsG said:

I have a 125i coupe of the same era. Hope this is not common on those

Not if its the nice 6 cylinder petrol 3.0 125i then nothing to worry about should be fine to over 200k without any chain problems.

Its the cheap and crap 4 cylinder ones with plastic components that should have been metal, N47 and N43 engine code post 2007.

[hooblah]

fxman said:

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.

You sound like a right spacker. Please, stay off the internet.

[njw1]

hooblah said:

fxman said:

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.

You sound like a right spacker. Please, stay off the internet.

No, please stay, it's hilarious!

[Roller89]

Nanook said:

So when you said it doesn't stretch, we agree that it does, you just object to the use of the word.

And if they were to measure the elongation of the chain, the plastic deformation is exactly what they'd be measuring.

No, look I am not going to argue the point.

Have a look at a generic procedure to measure chain elongation and make up your mind. Once you look at the procedure I am fairly sure you'll see it is wear between the pin and bushing that is being gauged.

[GadgeS3C]

Roller89 said:

No, look I am not going to argue the point.

Have a look at a generic procedure to measure chain elongation and make up your mind. Once you look at the procedure I am fairly sure you'll see it is wear between the pin and bushing that is being gauged.

Correct. It wears, it doesn't stretch. it just gets called stretch to confuse.

[Condi]

GadgeS3C said:

Correct. It wears, it doesn't stretch. it just gets called stretch to confuse.

Depends... the overall length of the chain will have elongated (stretched). The individual rollers will have worn.

Edited by Condi on Sunday 23 September 22:25

[iSore]

rallycross said:

Not if its the nice 6 cylinder petrol 3.0 125i then nothing to worry about should be fine to over 200k without any chain problems.

Its the cheap and crap 4 cylinder ones with plastic components that should have been metal, N47 and N43 engine code post 2007.

4 and 6 cylinder N Series engines use virtually the same chain components. The 6 cyl runs more smoothly so are easier on the chain but they still wear.

The N47 problem was insufficient lubrication to the upper chain. BMW have revised this, and the rollers in the upper chain (and the other now I believe) now have oil holes in them.

[V8 FOU]

iSore said:

4 and 6 cylinder N Series engines use virtually the same chain components. The 6 cyl runs more smoothly so are easier on the chain but they still wear.

The N47 problem was insufficient lubrication to the upper chain. BMW have revised this, and the rollers in the upper chain (and the other now I believe) now have oil holes in them.

Don't let that trolling tt see this! He'll be out there with his Black and Decker attacking the chain! All those bits of swarf from drilling the holes will also help with the smooth running of the engine floating around in that vintage oil.......

[Shiv_P]

Good old BMW. Let the consumers do the testing

[Mr2Mike]

iSore said:

4 and 6 cylinder N Series engines use virtually the same chain components. The 6 cyl runs more smoothly so are easier on the chain but they still wear.

The N47 problem was insufficient lubrication to the upper chain. BMW have revised this, and the rollers in the upper chain (and the other now I believe) now have oil holes in them.

Ugghh, cheap and nasty split rollers.

[Alanbro40]

Bmw have just done my chain on a recall , it's a 318i , 2008 - I drove car 800 miles and it's blown up -- they have told me when they changed chain some guides was broken up inside sump , and a bit must have been left inside , I'm waiting to hear what there gonna do about it