Review on YSTOOL Radiator Automotive Pneumatic Universal Tools & Equipment in Diagnostic, Test & Measurement Tools by Grant Zeeb

Minor problems. I think all of these inexpensive kits have plastic wherever possible. That'll be fine for my needs, but someone who uses the refill feature a lot might want better. For occasional use, maybe not every day. Good value for money. Description: No metal manifold or air block (unfortunately they don't specify how much shop air pressure the plastic shut off assembly == i.e. plastic splinters can handle). There are brass ball valves and brass fittings with a plastic cap that fits a plastic manifold and a venturi/air button tee that threads into it. Venturi is a brass fitting screwed into a plastic sleeve. The chunky vacuum fill assembly has plastic connections that can come loose and become too worn out after constant movement (I noticed when I picked it up that it was loose and I researched what/how it's made of. There are 5 caps that have a free landing to have ). Radiator sealing washer When it arrived I checked a couple of radiator caps. I took all the pieces of the kit I had used to the sink to rinse them out and when I went to put them back in the box, one washer was missing. I panicked. Somewhere in the radiators, in the engine bay, in the shop, in the grass, in the house, in the sink or in the gravel driveway, a washer was missing. I found it was stuck to one of the radiator cap adapters. Those loose washers can really ruin your day and they should be sending replacements until they figure out a way to make them more secure. I think I could make a washer out of an old hose. The guide is 4 pages printed on one (fine print and fingernail sized photos) with a very short list of header usage diagrams. I can't find YSToo's website to download a PDF for better printing, although I've found the Revain listing has more information than the instructions. Plastic plugs and their positions are numbered. The 2 heatsink adapters are made of stronger PA66 plastic. I wish they were metal like the kit I borrowed from the auto parts store. And it looks like this kit is just testing the old metal caps directly. The metal caps are steel with some aluminum spacers/gaskets for rubber grommets and washers. The reason I picked this kit and the star of the pack is the large piece of machined aluminum universal radiator neck adapter for $20 more. You also get an extra metal lid and a handy meat thermometer.