Review on 🔧 Engine Cylinder Diagnostic Tester Kit with Compression Gauge and 8" Extension Tube by David Blackstock

Now I know I need to have my spare motor ready for replacement! I have no idea of the accuracy, but the readings for my 220,000 mile 280ZX put me at 110psi across all cylinders. Adjusting the valve timing got them up to 130psi. Still not enough! An essential tool alongside a vacuum gauge and timer. I'm glad it came with all adapters, it will be useful for my other cars and tools *thumbs up*