A compression gauge. Check out this link.What do i need to do a compresion check?
Sweet man Plymouth isnt far at all. Altho i dont wish this humid weather on anyone lol. But yeah you can get a compression tester with a guage and a piece to screw into your plug hole, or you can stick your finger over the hole just to make sure you have some compression i mean obveously the finger test is a little less accurate, ok alot less accurate lol. It will still give you a little bit of insight on how your compression is tho.Slammed I'm from just down the road, too bad i'm not there now. I grew up just south of plymouth, but now i'm in virginia beach.
If you have low compression, then the rings/cylinder is worn or the valves aren't sealing good.And if the compression is bad it is the piston rings and if it is good then what?