Car: 1992 Nissan 240sx Coupe (stock) So on way to work today I hear a ticking noise under the hood. Power seems to be a bit off and ticking seems consistent with the revs. I figure its the lifters. At end of work I buy some oil and put some more in. Still the same noise. I get home and take the valve cover off. Lo and behold. Near the driver side 4th cylinder, this is what I see. Looks like a spacer/retainer for the cam lobes between it and the lifters. Can I get away with running without one until I can replace it? I need to get by another month or two before I start my SR swap.