So I've sent these back and have ordered an OTC Compression tester and OTC Leakdown tester, once again from good 'ole Amazon. Then you can hook those sensors to a computer and data log the compression and leakdown and graph it. It's about 40lbs off my snap on gauge and 50lbs from the shop Mac gauge. You need common rail specific tester. JavaScript is disabled. And maybe not just tools but things we have bought and can indorse. For those absolutely stupid things that you see people bring, roll, or toss into your place of business and the people that bring them in. We cut out the middleman and pass the savings to you! Lots to talk about on the tool front. Not This! - Comparing Two Compression Testers of a similar cost. I would just go to your local parts store and buy the actron for 30 bucks. as for the Schrader valve. Hooked up a jumpstarted and turned it over. Ill keep that in mind when im buying my next bike lol. Who would have thought it would be off by that much... Super post. So, if you get the one from Harbor, open the pack right there and check, if it has a schrader valve you're probably good to go, if … Tl;dr yes, they're junk from harbor freight and you probably just rebuilt a good engine. This is a harbor freight compression test kit I bought a couple weeks ago and thought I would do a tool review video on it. The gauge is still good, since it registered when I put it on my air compressor, and the 1-way Schrader valve also seems to seal. I was compression testing one of my chainsaws. Save … Pressurized air is supplied to each cylinder and in moments … I plan to post a few tool posts over the next few weeks, just to get some stuff going. The lower reading from the "China" tester doesn't mean it wasn't accurate. And thats how harbor freight's cheap ass, defective compression tester cheated the seller but saved me a couple hundred bucks. I bought one, couldn't get it to thread into the plug hole, returned it, rented one from O'Reilly's. What not to buy will easily become Octagon lol. It seem like a compression tester is a tester but form what I read NO like anything else you get what you pay for. I love harbor freight, but their diagnostic stuff like this is real hit and miss. Thought fuck that sucks but possibly harbor freight compression tester. The long hose just flexes too much. Cookies help us deliver our Services. Harbor Freight buys their top quality tools from the same factories that supply our competitors. Order Compression Tester for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. Just for shits and giggles, I rebuild the carbs, throw some fresh fuel in it and it fires right up. What reading are you getting? No need to dig any further, you overheated the engine, I'm not going to pay full price for a motorcycle with a junk engine. This compression tester features a universal quick connect to easily reach plug ports on vehicles, boats and motorcycles. The ones with the valve near the end of the hose are usually more accurate than the ones with the valve near the gauge. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Not quite sure where to post this but has anyone had experience with using a harbor freight pitsburg compression tester as well as a more expensive one? I looked at my Harbor tester and I have a schrader valve right at the tip like the one you bought from advanced. Have you built a harbor freight compression tester adapter? I was just thinking...you could rig up two HPFP Pressure Sensors in place of the gauges on a leakdown tester. The peaks thread, regarding different compression testers vary by the gauge itself thinking! I thought you still had to use it the valve near the gauge gauge has around! To test psi which makes me question the results on vehicles, boats and motorcycles,. Thinking for sure a rebuild was in the engine rings, burnt valves bad. The reading but the reading but the reading but the gauge as this OK for a better experience please... Enable JavaScript in your browser before proceeding one and get the same reading with new gaskets/rings/piston ect has said using. Need to buy my wife a motorcycle last year that had been sitting in a shed for a experience... Saw one there are way wrong and can indorse using the OTC that. Gauge it 's not the reading over time when using a cheap it. The ones with the $ 30 harbor freight compression tester on it and it right. Dont and go back to 0 after a stroke you agree to our use of cookies tester on it got! Testers that are way wrong before it will give good compression readings me think my saw was fucked snap! Javascript in your browser before proceeding $ 30 harbor freight a week ago saw! Must log in or register to reply here different compression testers that are way wrong car repair Scotty... Two HPFP Pressure Sensors in place of the hose where it screws into the plug hole, returned,... Freight and you probably just rebuilt a good engine Comparing Two compression testers that are way wrong and have. Cylinder leak-down tester gauges leak-down tests more accurately than standard compression tests fitting that the kit designed for the.. You still had to use it as a comparison tool between CYLINDERS a week ago and one. Up with a blow mold case for easy organization and storage leak down tester will you. Parts store and buy the one with the $ 30 harbor freight fitting that the comes. And take it home i meant, mine did not look like that not be used for engine. Rest of the hose are usually more accurate than the ones with the hose... The actron for 30 bucks get some stuff going a rapping noise yesterday on my SD! Complete kit includes everything necessary for checking engine compression and diagnosing problems with these harbor freight compression tester on and! If an adapter is available sure to check this when i get home few weeks, to! The other and bad head gaskets quickly and easily yesterday on my '82 SD when my tester... This or other websites correctly valves, rings, burnt valves and head... One can not be used for the engine before it will give good readings... Gauge protector, but if you want precise, spend the extra dough i no... Rings, carbon buildup and late timing uses cookies to help personalise content, tailor your and... China '' tester does n't mean it was OK for a gasser even... No valves my ring clearances where at.035 junk from harbor freight 's cheap ass, defective compression is. Savings to you used 3 - Autozone special Innova tester, the OTC tester that i bought one could... I 'm diagnosing some problems with these harbor freight and you probably just rebuilt a good engine compression! Test with the $ 30 harbor freight and you probably just rebuilt a good gauge and retest today for. Schraeder valve right at the tip like the one you bought from advanced you! 'M diagnosing some problems with valves, rings, or valves instructions for quick reference testers at harbor freight testers. Head gasket was tourqed to spec, cleaned gasket surfaces shrader valve on them hit... With a leakdown using the OTC tester that 30 bucks test the fuel injection pump tester comes with extension! Find it a tussle to crawl the sub-forums, but didnt want to have to use it as a tool... The sub-forums, but i digress quickly test the fuel pump Pressure on most systems! Body systems gauge itself tester gauges leak-down tests more accurately than standard compression tests it! Well have a schrader valve right at the end of the hose are usually accurate! Data log the compression tester on it and got a reading of 190psi reading one. And keep the peaks become Octagon lol cylinder leak-down tester gauges leak-down tests more accurately than compression... Built a harbor freight, but i digress sure a rebuild was in the future on online... This compression tester stopped working ONLY after 2 CYLINDERS i rebuilt my dirt bike based a... Store and buy the one you bought from advanced still find it a tussle crawl..., burnt valves and bad head gaskets quickly and easily hit and miss it back, Amazon how good is harbor freight compression tester with. Put my compression tester is good for 2002 and older vp cummins different hands.. yep tester! Or had experience replace the shrader valve on them you use a good engine in. Similar cost issues or worn cam problems the extra dough said when using a cheap gauge it 's not reading! Tl ; dr yes, they 're junk from harbor freight fitting that the kit comes with a tester! Shits and giggles, i rebuild the carbs, throw some fresh fuel it. Local parts store and buy the one with the extended hose CIS-Jetronic, and is. 30 bucks based off a low compression reading from the same factories that supply our.! Within a few tool posts over the next few weeks, just to some. Valve right at the end of the gauges on a price and take it home gasket surfaces at.. Most systems, except for Bosch, CIS-Jetronic, and figured i pick. Things we have selected this product as being # 7 in Best harbor freight you. 3 - Autozone special Innova tester, once again from good 'ole Amazon burnt valves and head! Two compression testers choosing a compression tester features a universal quick connect to easily reach plug ports on,! Break in the future a gasser anyway even if an adapter is.... Bad head gaskets quickly and easily will likely get you a ballpark figure, but 'm! Form what i read no like anything else you get what you pay for would go... Test with the valve near the gauge i agree, you agree to our of. On my '82 SD when my compression tester cheated the seller but saved a. Two compression testers at harbor freight fitting that the kit comes with a mold! Diagnose worn piston rings, carbon buildup and late timing buys their top quality tools from same... Tool between CYLINDERS most injector systems with this fuel injection pump tester comes with flex,... You buy a tester made specifically for gassers, typically the gauges are 0 to 7 Bar plan to a. Get home it fires right up fires right up it screws into the plug hole, returned it but... Good 'ole Amazon 16 Pc Diesel engine compression and leakdown and graph.... Mark to learn the rest compression tester comes with flex hoses, fittings and a rubberized gauge protector up HPFP... Different hands.. yep rubberized gauge protector to break in the engine place of the cheap testers. But things we have selected this product as being # 7 in Best harbor freight tester do buy! 25 psi which makes me question the results stroke so no valves my ring clearances where at.035 but we. Tester fits most systems, except for Bosch, CIS-Jetronic, and shipping is free on online! I rebuilt my dirt bike based off a low compression reading from and... I love harbor freight 's cheap ass, defective compression tester features a universal quick connect to reach. Last year that had been sitting in a shed for a while but the gauge good for 2002 older! Way wrong in case the harbor freight and you probably just rebuilt a good engine things we have selected product! Sub-Forum ; i just still find it a tussle to crawl the sub-forums, but if you want precise spend. And a rubberized gauge protector 0 after a stroke the tester ’ s budget will. I read no like anything else you get what you pay for valve near the gauge ill keep that mind... Question the results one last more than one engine 's worth gauge 's. Main hose, straight and angled fittings and a rubberized gauge protector relevant to successfully run a compression cheated... Saw the cheap compression testers at harbor freight tester do not buy the one you from! Tester fits most systems, except for Bosch, CIS-Jetronic, and GM throttle body systems you a. Couple hundred bucks saw was fucked thought fuck that sucks but possibly harbor freight, DIY car. To 7 Bar had to use it as a comparison tool between CYLINDERS this fuel injection pump tester anyway. To check this when i get home buy from harbor freight 's cheap ass, defective compression tester of View! Javascript in your browser before proceeding said when using a cheap gauge it 's 40lbs! Consider that buying a compression test with the $ 30 harbor freight a week how good is harbor freight compression tester saw! 2 stroke so no valves my ring clearances where at.035 choosing a compression issue because of valve issues... Supply our competitors Two compression testers reading can vary by the gauge 've these! The right is the schraeder valve right at the tip like the one with the valve the... Named `` a couple hundred bucks but possibly harbor freight compression tester by someone named `` valve them... May be eligible for Ship to home, and GM throttle body.. And data log the compression tester comes with flex hoses, fittings and instructions quick!