Recently on this website someone stated on another thread the c.i. barrels on an Atlas have on spun cast liners inside them-you know how it is –it only takes someone on social media or the internet to make a statement which then becomes a “Fact”
I quote,
Postby texasSlick » Thu Apr 13, 2017 2:01 pm
I happen to have my Atlas cylinders sitting on my credenza. As I am the original owner, I can attest to the fact these are as originally fitted.
Examination with a 5X loupe reveals:
1) There is a uniform sand casting texture where the outer diameters of the cylinders join the base between the tappet bores (the non machined area inside the gasket flange). There is a smaller non machined area at the rear, dead center between the cylinders, that has the same texture characteristics.
2) There is also a generous radius where the outer diameter of the cylinder joins the non machined base area.
3) There is no visible joint in the machined surface where the lower cylinder spigots merge into the tappet bores.
These factors rule out a pressed in liner. Let's put this issue aside and return to helping the OP with his original question. Slick
I quote,
Postby texasSlick » Thu Apr 13, 2017 2:01 pm
I happen to have my Atlas cylinders sitting on my credenza. As I am the original owner, I can attest to the fact these are as originally fitted.
Examination with a 5X loupe reveals:
1) There is a uniform sand casting texture where the outer diameters of the cylinders join the base between the tappet bores (the non machined area inside the gasket flange). There is a smaller non machined area at the rear, dead center between the cylinders, that has the same texture characteristics.
2) There is also a generous radius where the outer diameter of the cylinder joins the non machined base area.
3) There is no visible joint in the machined surface where the lower cylinder spigots merge into the tappet bores.
These factors rule out a pressed in liner. Let's put this issue aside and return to helping the OP with his original question. Slick