There are many cylinder leak-down testers and compression testers on the market, but each year fewer are made in the United States. American made testers feature better quality gauges and hoses. The biggest complaint about the imports is the gauge. Sometimes they will break on the first use.
Professional mechanics / technicians are always looking for quality products – preferably tools that will last a lifetime. No one wants to buy the same tool over and over again, but worse yet, no one wants to break a tool during a job.
GSI Industries has made quality diagnostic kits for decades. We have dealt with the OEM company since the 1990s. With each sale of their product we are confident the customer will be happy. The quality tools have always beaten the customer’s expectations.
The GSI6310 will test gasoline engines and the GSI6630 will test diesel engines.
6632, VW, Volvo, Audi, Dodge, Mercedes, and Cummins 5.9L (24mm x 2.0)
6634, GM 4.3L 6 cyl., 4.3L & 5.7L 8 cyl., Ford/Navistar 6.9L & 7.3L, International Harvester 6.9L (10mm x 1.0)
6636, GM/Isuzu 1.8L & 2.2L, Toyota 1.8L (10mm x 1.25)
6638, Ford Ranger Toyo Kogyo 2.2L, Ford/Mazda 2.0L engines in Escort, Lynx, Tempo, and Topaz. (10mm x 1.25)
6640, GM 6.2L V8. (10mm x 1.0)
6642, Mercedes, BMW 2.4L, Lincoln Mark VII Continental, Puegot 2.0L and 2.3L, VW Volvo, Audi 1.5L, 1.6L, 2.0L, 2.6L, GMC truck W4, W7, W7HV, Hino, and Isuzu.
6644, Toyota & Nissan 2.2L, and 2 & 3 cyl., Mitsubishi, Ford Escort 2.0L and some Kubota. (10mm x 1.25)
6648, Mercedes. (18mm x 1.5)
6650 21mm & Bosch type injectors on Allis Chalmers, Flat Allix, John Deere, Ford Tractor, International Harvester, Mack Truck, Massey Ferguson, Scania, Waukesha, Wisconsin, White, Bedford, Case, Perkins, and Onan.
