044 slant fin cylinders.

[10/80]

Anyone know if the Mahle slant fin cylinders used on the 10mm & 12mm saws are the same?.......They appear to be.

 

[Moparmyway]

I don’t believe there was anything different on the very early 12mm ones

@drf256

 

[huskihl]

Mahle 10 and 12mm slant fin cylinders are identical and interchangeable. The earlier slant fin ks cylinders had a little better porting

 

[jacktheripper]

I know there's some issues with ring gaps hanging up on ports - are the 12mm and 10mm slant fin pistons the same too? So don't put a straight fin piston on a slant fin cylinder in general?

 

[drf256]

I know there's some issues with ring gaps hanging up on ports - are the 12mm and 10mm slant fin pistons the same too? So don't put a straight fin piston on a slant fin cylinder in general?

I call BS on that. The ports are a bit wider on the 12mm cylinders, but they are still way within the comfort area to run a 10mm piston.

If you are freaked out by it, run a 10mm meteor slug. It’s a 12mm piston that’s bore for the 10mm pin. The pin bearing can move a bit from side to side, but I’ve never seen a failure personally.