Measure twice...

[Fifelaker]

Ms440 OEM piston
15.69 mm
39.45 mm
33.95 mm
15.24 mm
These are in the order you listed above. I have a 70e piston buried in the dung hole errr garage, I will try and dig it out later.

 

[Fifelaker]

70E OEM
12.96 mm
36.90 mm
31.09 mm
15.53 mm
The first three are close as the piston is domed and the skirts have a double taper.

 

[Four Paws]

70E OEM
12.96 mm
36.90 mm
31.09 mm
15.53 mm
The first three are close as the piston is domed and the skirts have a double taper.

Thanks!

What do you figure the dome height is? 2.50mm ?

 

[Fifelaker]

Thanks!

What do you figure the dome height is? 2.50mm ?

Maybe? I took it back out to the feces pit. I will grab it in a few and see.

 

[Fifelaker]

My calibrated eye says about 3.20- 3.25mm. I measured three times and it is close.