Z4 MCoupe in for engine work incl bearings

[Peter@AEW]

2007 or 2008 Z4 M coupe owner by a young forumite came in for bearings and a cleaning of the head.
Also needs clearances to be set.



Car has 119000Km



Cams were removed to clean the head properly
This is after the third pass

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Owner wanted to be involved in teh work so he stayed over.
That is he cleaning the engine....whilst I am doing the camera bit.

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[Twinz]

Wow...some detail work going on there. Good for owners to be involved. Thats how we learn. :clapper:

 

[Peter@AEW]

Another one after this and it will be done.

 

[Crash_Nemesis]

I recognize those hands. Or should I say that overall. Me thinks the owner is blood related... aka Lysis.

 

[Ratslaaf]

Nice! Are you guys doing the whole motor or only going for head and bearings?

 

[ecKARd]

Off topic: is that a Ferrari to the right?

 

[Ratslaaf]

No :=):

 

[Peter@AEW]

Nice! Are you guys doing the whole motor or only going for head and bearings?

Head and big end bearings.
Vanos-Rattle Kit has been done.

 

[444YYY]

Big difference on the before and after cleaning pics!

Awaiting the bearing pics

 

[MikeR]

:skit: big end bearings ? what was the problem and how many kms ?

 

[444YYY]

:skit: big end bearings ? what was the problem and how many kms ?

Think this is just precautionary... And from looking at ADIs E46 M3 bearing job, with just over 100 000km on it, it's a great idea

 

[AdiS]

:skit: big end bearings ? what was the problem and how many kms ?

The problem is the big end bearings. And their imminent failure.

 

[MikeR]

:skit: big end bearings ? what was the problem and how many kms ?

 

[AdiS]

:skit: big end bearings ? what was the problem and how many kms ?

As per the original post, the mileage is 119 000km.

The problem with the big end / rod bearings is that they wear out on this engine, and will destroy the engine when they do. So its best to have them changed before they completely wear out.

See mine after 98 000km: http://www.bmwfanatics.co.za/showthread.php?tid=67356

 

[MikeR]

Dont know why my post went through so many times, must be the bad internet in Zim.
Ok 100 000 should not be a problem at all thats why I ask, it should be a rare occurrence rather than the norm, but If you have enough cash to do then I suppose its for your own piece of mind.

 

[Peter@AEW]

Dont know why my post went through so many times, must be the bad internet in Zim.
Ok 100 000 should not be a problem at all thats why I ask, it should be a rare occurrence rather than the norm, but If you have enough cash to do then I suppose its for your own piece of mind.

Cars at 70000Kms have had copper showing on their bearings
Once the bearing is worn down to the copper shell it becomes a lottery as to when it will bite and start rumbling at best or in the worst cases have a rod through the block.....
I shall be posting some pics tomorrow of the bearings and I am sure you will have a better understanding of how imminent a failure it can be.

Not being an alarmist by any stretch of the imagination,do some googling on bearing failures and you will read that by the time you get to hear the rumble it is too late as the crank will have been scored.

 

[Fordkoppie]

Owner wanted to be involved in teh work so he stayed over.
That is he cleaning the engine....whilst I am doing the camera bit.

Next thing you know, he wants a loaner car from you as well :mmm:

 

[Xack]

Owner wanted to be involved in teh work so he stayed over.
That is he cleaning the engine....whilst I am doing the camera bit.

Next thing you know, he wants a loaner car from you as well :mmm:

Like the F355 Berlinetta parked next to it :tiptoe:

 

[Jeremy]

Owner wanted to be involved in teh work so he stayed over.
That is he cleaning the engine....whilst I am doing the camera bit.

Next thing you know, he wants a loaner car from you as well :mmm:

Like the F355 Berlinetta parked next to it :tiptoe:

The Berlinetta :inlove:

 

[MikeR]

Dont know why my post went through so many times, must be the bad internet in Zim.
Ok 100 000 should not be a problem at all thats why I ask, it should be a rare occurrence rather than the norm, but If you have enough cash to do then I suppose its for your own piece of mind.

Cars at 70000Kms have had copper showing on their bearings
Once the bearing is worn down to the copper shell it becomes a lottery as to when it will bite and start rumbling at best or in the worst cases have a rod through the block.....
I shall be posting some pics tomorrow of the bearings and I am sure you will have a better understanding of how imminent a failure it can be.

Not being an alarmist by any stretch of the imagination,do some googling on bearing failures and you will read that by the time you get to hear the rumble it is too late as the crank will have been scored.

:skit: wow 70 thou thats not good must let my old man know how bad things have gotten, he is a motor mech of 60+ years so I know a wee bit about engine failures. and that dont sound very right to me.