[ ad supports Snowbum's website ]
Cylinders (iron, steel, Nikasil, Galnikal).
Boring, honing, cylinder shims, plates,
gaskets, o-rings. Removing cylinder shims,
ridge removal, measuring cylinder taper,
installing new rings, etc.
© Copyright, 2013, 2017, R. Fleischer
article 60, sub-section 3
For information on the cylinder studs & Helicoils:
For information on pistons, rings, etc. :
BMW has used both Galnikal & Nikasil in describing their late cylinders, & never explained the difference. BMW used at least two companies in producing these cylinders for them. They are basically the same process. Nikasil is a registered trademark of Mahle Gesellshaft (yes, the piston and filter makers). Coated cylinders are done via a plasma process, in Stuttgart, & is a blend of nickel & silicon carbide. Galnikal is a trademarked name for the process used by Kolben Schmidt, which is a major German foundry & castings maker. They also make pistons. If you have Kolben Schmidt cylinders, or other products, they use a symbol which is a letter "K" on top of a letter "S", and it looks like this:
>>>As far as this article is concerned.....and, for most purposes anyplace, cylinders are referred to as iron (or steel); or Nikasil (even if Galnikal).
So...just what is Nikasil or Galnikal?
This remainder of this article is only available for Airheads Beemer Club members. Please Log In..or..Click Here to join the Airheads Beemer Club, after which you will enjoy access this article and all members only content of the ABC web site.