Cylinder Leak Down Tester Engine Compression Diagnosis Tester Kit Dual Pressure Gauges Engine Compression Leakdown Detector Leakage Test Set for Gasoline Engine

Using a leakdown tester properly is not intuitive. Keep the instructions to remember how to zero this gauge out. It is not obvious!This gauge set works fine, but you might need to buy a few other stepdown regulators and air chuck fittings to really get the most of of it.This inexpensive tool has allowed me to diagnose head problems, piston ring problems, and assess the health of used motors before deciding to rebuild them, saving me a lot of time and money.

I see a few negative reviews for this but, my experience is good. Product works exactly as it it should and I expect years of service. It's a shame we're reliant on China for so many things but, that's why the price point is so low.

The very first time using this the regulator broke! I was able to do a leak down test on only 1 cylinder before the plastic regulator broke apart. Do not buy, tried to get a warranty/refund, the are charging a re-stocking fee on their poor quality item. Buyer beware!!!

was a little skeptical about buying this product due to all the negative reviews. When I received it, I checked to see if the hose would spin inside of its crimped end and it did not. There were many reviews that indicated that their hose would get stuck in the spark plug hole and the one I got did not when tightening it hand tight. I checked my leak down and it seems to be accurate at 4% with 2800 miles on my RZR 1000 XP turbo. I also got it because it had an 14 to 10mm adapter so I could use my snap on pressure gauge. This product worked great for me. Although I figured it was worth a chance since amazon is good about ensuring customer satisfaction.

Easy to use and understand, be sure to get top dead center on compression stroke and block the fly wheel from turning over. Listen for the air escaping. Live the universal fittings, all types of vehicles and engines. Great carrying case to keep all parts sorted and stored. As described.

You need to be able to go to 80-100 PSI so that you can track the leakage by sound and feel. The way this gage is calibrated you can only go to about 30 PSI. The solution is put a standard gage on the right side and calculated the percentage based on PSI difference. I had a gage on hand, so it didn't cost anything.

Quality seems good. Case is a plus. I won't need to use this very often - good bang for the buck.

Leaks at the hose fitting like it was not clamped tight enough. Of no use like this, I would not buy again.