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      11-02-2021, 07:28 PM   #15
ProjektAutoScott
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Drives: 2021 M340i
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Quote:
Originally Posted by alfalfa View Post
As I stated above doing all cylinders on one bank means they know what they are doing.
If you just sleeve one cylinder you will impact the bore of the next one. Look at the small wall between the cylinders and now imagine you will overbore this and put a sleeve in there. Alusil is a weak material in the end and not comparable with a iron cast block.
As stated above, that argument only applies to an iron sleeving process. What we are talking about is cutting a hole in aluminum and sleeving it wil the same aluminum, in the form of an aluminum sleeve. I would never ask for a single sleeve of different material, that would in fact compromise the block. The other shops I’ve spoken to today have confirmed a single aluminum sleeve would be the least invasive process.

Please read page 30 of the PDF I linked above from one of BMWs main suppliers if you aren’t understanding the procedure I am having done to my 8th cylinder

Last edited by ProjektAutoScott; 11-02-2021 at 07:57 PM..
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