using oil

[chpr1972]

I had this motor built for me. It has used oil since new. I put a different set of rings in it and it still uses oil. BBC 489 cast eagle crank with Keith Black pistons, flattop. Should this piston have buttons, and why can I not find a listing for any buttons?

[egoman]

That's not right!

[grease]

Do you have a picture of the cylinders? Also, does it use oil so bad that it smokes? We’re the heads rebuilt with new guides and seals?
A poor intake seal can cause oil consumption as well.
I had one that would smoke over 2500 rpm. It was the valve guides causing it. On another one, it did t smoke, but used oil. Found it was sucking oil through the PCV system. Installed a baffle in the valve cover and fixed the issue.

[btmatt]

should at least have a support rail for the bottom oil ring

[grease]

Can you take another pic of your piston? It looks like there is a black ring under the second piston ring. Could just be the way I’m looking at your pic. But that might be the support ring for the oil ring pack.

[chpr1972]

Dummy me! I do not remember if I took the old rings off the pistons or my grandson. Anyway, the Keith Black pistons come with a spacer ring. I bought "rebuilder type rings and put them in. Good thing I am a pack rat as you can not just buy the spacer. Since it had been 20 + years since I rebuilt a motor, who would have thunk??? Thanks for the help!