Does a 307 have self-adjusting lifters?

[jamesejam]

Does a 307 in a 1987 Cutlass have self-adjusting lifters? Or do I need to adjust the valves every once in a while?

 

[85 Cutlass Brougham]

They are hydraulic and there is no need to adjust them. The only way the valves will come out of adjustment is if something gets too worn, like a rocker arm or a lifter that is sticking. You will know if this happens because it is audible.

 

[joe_padavano]

They are hydraulic and there is no need to adjust them.

More to the point, you can't adjust them.