2006 Z4 M COUPE REBUILD

[bybyM3]

On a separate thread there was a discussion of bearings being done.

Here is a good reason as to why you need bearings done on the S engines

I have used a vernier to measure which is 95% accurate as I do not have a 50mm digital micrometer so I would not be able to show you the measurements clearly.

Here is a standard not worn journal for the conrod.



Here is the worn journal that ran a bearing.


This journal is beyond cutting to clear the score marks as it will take the crank to extreme undersize.
In addition the crank was bent with runout of 0.2mm where the factory stipulates 0.002mm runout.

Impacabble work Peter

I do have an outer micrometer if you want to use it

 

[Peter@AEW]

On a separate thread there was a discussion of bearings being done.

Here is a good reason as to why you need bearings done on the S engines

I have used a vernier to measure which is 95% accurate as I do not have a 50mm digital micrometer so I would not be able to show you the measurements clearly.

Here is a standard not worn journal for the conrod.



Here is the worn journal that ran a bearing.


This journal is beyond cutting to clear the score marks as it will take the crank to extreme undersize.
In addition the crank was bent with runout of 0.2mm where the factory stipulates 0.002mm runout.

Impacabble work Peter

I do have an outer micrometer if you want to use it

Thank you.
I have outside mics Afzil but they are traditional analog scales rather than digital.
For the purpose of illustrating this measurement the analog would not have been as clear to the untrained eye.
Thank you for your offer though.

 

[Peter@AEW]

Did a bit of work on the suspension and fitted new Koni adjustable shocks.
My sons car is fitted with Bilstein which I find rather harsh. I prefer the adjustability on the Koni.






Then to add the cherry on the top we fitted a set of 350mm Powerbrake BBK.

 

[DINODENASH]

raise:

 

[boost3d]

very nice work! raise:

 

[FiRi@Rennzport]

Did a bit of work on the suspension and fitted new Koni adjustable shocks.
My sons car is fitted with Bilstein which I find rather harsh. I prefer the adjustability on the Koni.






Then to add the cherry on the top we fitted a set of 350mm Powerbrake BBK.

Love the brake upgrade

Sent from my LYA-L29 using Tapatalk

 

[UpNcOmiNg!]

Oh My :inlove:

This just got more perfect!
Lovely stuff. I find few things as enjoyable as seeing clean car parts. :inlove:
Gets me in my feels every time

 

[AdiS]

Gotta love it when someone is willing (and able) to pony up with the budget to do the whole 9 yards!

 

[Kay 63]

Your work is impeccable sir. If only I could find someone with your expertise to deal with my Mercedes 63

 

[Peter@AEW]

I have the man for you Merc trained and started on his own
I will send you a mail with his number

 

[adrian88]

Impeccable work raise:

 

[Kay 63]

I have the man for you Merc trained and started on his own
I will send you a mail with his number

Thank you kind sir... I will impatiently await the details :ty: :ty: :ty:

 

[Del-Bosc]

I have the man for you Merc trained and started on his own
I will send you a mail with his number

Thank you kind sir... I will impatiently await the details :ty: :ty: :ty:

Please send me his details as well