pag may oil ba na nalabas sa oil cap is it a sympton of a damaged ring? Notice ko kasi wala naman usok pag naandar ako, yun nga lang may tagas sa oil cap kahit mahigpit naman ang pagkasara ko. I'm planning to replace my piston ring and overhauling gasket (kit) sabay na ng mga belts next week i'm just confused kung anu ang may diperensya. Hope you could help me guys with experience also diesel guru's.