back the rocker nut off until the lifter begins to tap, then tighten then 1/2 to 3/4 turn
http://www.classiccarauto.com/impala/how_to/adjust_valves.shtml
If they are hydraulic, they should never need adjustement. if not, you adjust lash between arms & springs.
Hydraulic lifters would be STOCK from the factory. On the 84 engine.
YES it does and it is a roller cam and hydraulic lifters.
The 4.3L would have 12 hydraulic lifters.
Yes.
Not that difficult but the 350, 5.7Liter has hydraulic lifters and you must be sure the oil hole is lined up with oil hole in block
They all had hydraulic lifters. To determine if it has roller lifters, you'd probably need to take off the intake manifold and have a look.
Yes it does. Chevy did not use solid lifters in that engine.
0 lash, then tighten between 1/4, up to 3/4 turn.
All engines in a 2001 Lumina use hydraulic lifters. These lifters are self adjusting. Lifter related valvetrain noise is most commonly caused by failure to replace the lifters after destroying them by excessive driving with water-contaminated oil.
If it has hydraulic lifters, you do not adjust the valves.
Tighten rocker arm down to 35 lbs of torque and your all done. These lifters are hydraulic and self adjusting. If you still have valve clatter, you have worn valve train parts.