Efficient Compression: Lisle 18500 Small Engine Ring Compressor Review

This ring compressor worked as advertised. I've only used it to fit pistons in a 4 cylinder engine so it didn't find much use but for a guy who only does it occasionally this compressor will get the job done. There are better compressors out there but not at this price point so I give it 5 stars for value for money.

Don't waste money and time. It hardly deserves the term "tool" and broke almost immediately on first use. This is a design flaw and needs to be heavily reinforced in the small white handle area. I treat tools with respect and do not misuse or misuse them. It is simply manufactured with no regard for actual lifespan.

Absolutely necessary when changing rings on the piston. Make sure you buy the correct size compressor as the pistons are different sizes. There are better piston ring compressors out there, but if you don't do it all the time or make a living, it's good enough. Sometimes it can be a bit tricky to use, but there is no getting around a ring compressor.