🛠️ BETOOLL HW0130 Cylinder Compression Gauge for Automotive Engines Review

I ordered this tool to diagnose a head gasket problem on a Toyota Tacoma and Bingo. It has given me consistent results every time and recouped the cost.

Unfortunately I no longer have a "good" gauge to compare accuracy with, but it seems to fit. Already paid for itself with the first diagnosis I needed. Can not complain!

Used for the first time a few weeks past the return deadline. For a known good engine, read below 50psi. Tested to 90psi by a known good tester. This is not good.

Helped me. With larger pistons you will get higher readings. You must compare the grass trimmer's piston pressure gauge to the piston pressure gauge of another grass trimmer of the same size, not the V-8.

This is a tool that should be pretty accurate. Will not exceed 75psi with hose and will not exceed 90psi with hose. Tested the same bike with other testers and scored over 150 points. See photo.

Lots of connection options. The hose and tip feel well made and durable. A pretty good guide is included that pretty much matches what the knowledgeable folks on the car forums have suggested. The pressure gauge keeps the pressure reliable. So if you do the tests yourself, you can start the engine from the driver's seat without worrying that you won't get an accurate reading when you get out and check.

For the price it works great, I've only compared it once to the guy that uses the latch and the same results. Does this mean the calibration will fail if I sneeze on it? I just got lucky with "good" I can't say, but that's been my experience so far. UPDATE: from 5 launches to 2. I actually worked on this for 2 months. If I was chasing an engine problem that wasn't there, it would just start testing anything around 50psi. God. just a little imprecise. From reading I got one with a Schrader valve

I received my set quickly and it is in very good packaging. Everything is well adjusted. I tried it the same day I received it. Good size, everything fits. Unfortunately, I received an obviously defective pressure gauge or pressure relief valve. Tried three different engines. One of them was considered faulty and two very good, with few hours and quick starts. Everything is registered at about 25 psi. I contacted the seller and he asked a few questions and asked me to send him a photo. A few…