Compression gauge works better in my opinion. I bought this and it works fine. If your safety caps/inlet valves aren't working, just keep an eye on your rockers/lifters. When they're on, just use a compression gauge or have a partner place your thumb over the spark plug hole to feel the compression. (Chevrolet SB/LB)
π ABN Inline Spark Plug Tester β Straight Boot Ignition Test Light for Small Engine Vehicles: Cars, Motorcycles, Lawn Mowers, Chainsaws
9 Review
π§ CTA Tools 2376 - Premium 14mm x 12 Point Spark Plug Socket for Efficient Vehicle Maintenance
9 Review
π§ Enhanced OTC 6900 Spark Plug Socket for Ford F-150
9 Review
Hairstyler Dyson Airwrap complete long HS05, bright nickel/bright copper
19 Review