yes they do, take off valve covers and adjust rockers as noted in repair manual
no, u need to remove the heads to get at the lifters
This engine probably has hydraulic lifters and no adjustment is required.
No valve adjustment on ranger XP 700 or 800. They have hydraulic lifters
Parts that old replace them with new ones.
There is no law that says you must replace everything at once. If the cam is still ok, no flat spots and no excessive pitting, just replace the lifters that are sticking. If the engine has a lot of miles on it you'll probably be replacing/rebuilding it soon anyway. Replacing the lifters will just give you a few more miles before you need to get a new engine or a new pickup until something else fails. If you have a flat spot or excessive pitting on the cam, new lifters won't do much good.
You are probably hearing the beginning of detonation. This can be damaging to your engine so I would have the timing checked and corrected to avoid any engine damage. I do agree with your answer, but the op was pretty vague as to how loud the lifters get. It is common for cheap gas to cause the "popcorn" sound as well.
No
take off head covers fill each lifter some will be loose tighting the ones that are loose turn on motor and you will hear and see the lifters that are loose tigten the loose lifters till noise goes away
Marlin- Mdl 80 with an adjustable trigger
yes
If you are debating on whether or not you want to buy a Ford Ranger, then it is useful to know the engine size. The Ford Ranger is available, with a V6 engine.
The timing is controlled by the powertrain control module - not adjustable