In order to perform the test the cylinder needs to be at top dead center on the compression stroke. Maddox cylinder leakdown tester any good Thinking of picking one of these up with the 20% off coupon Browse online or download harbor freight tools cylinder leak_down tester product manual 8 pages Engine harbor freight tools cylinder leak_down tester user manual pdf download free [0.42 mb]. I'm looking to get a reasonable quality leak down tester for very infrequent use
The lowest price i've found is made by u.s General and sold by harbor freight for $34.99 plus $8 shipping I bought this leakdown tester from harbor fright Wasn't too sure about the quality at first But i disassembled it and verified it has the industry standard.040 orifice (also the faa required size for testing airplanes) It was easy to use and the gauges seem to be decent quality
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