Engine casing machining

[keuk]

Hello,

When machining the bottom of the engine casing, can we use the side of the engine as a reference ?

When the machinist did it on my engine casing he told me that it was probably the reference used by piaggo to make all the mahining operation on the casing (drilling, bearing surfaces...). Right or wrong ?

[Sir-Largeframe]

Hi,

first of all nice diagram

Maybe You should contact the user "kobold". He's an expert in plaining casings.

Bon Chance

Sir

[amazombi]

Hello,

When machining the bottom of the engine casing, can we use the side of the engine as a reference ?

When the machinist did it on my engine casing he told me that it was probably the reference used by piaggo to make all the mahining operation on the casing (drilling, bearing surfaces...). Right or wrong ?

Yes, you can do that. It is accurate enough most of the time. If in doubt tell him to check with a dial gauge measuring at the top and at the bottom of the original surface.