how good is harbor freight compression tester

Yes, the new Harbor Freight compressors are good if you are replacing an older compressor in your home shop or garage and are using it to … What not to buy will easily become Octagon lol. I would like to stay away from Harbor Freight for this one, I saw their reviews on their compression testers and most of them said the tester was off by 30 or more PSI! Quickly test the fuel pump pressure on most injector systems with this fuel injection pump tester. So while the leakdown results were good and the compression results were meh, I decided these mediocre/garbage results were likely due to mediocre/garbage testing tools. Are you holding the throttle wide open while you test? 30 PSI. Was thinking for sure a rebuild was in the future. 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? On the right is the HF numbers and left is the rented gauge. I was just at harbor freight a week ago and saw one there. I own a compression tester made by U.S. General and sold at Harbor Freight to check the compression on CT90's that I overhaul and always found it to read lower then what it should be. I love harbor freight, but their diagnostic stuff like this is real hit and miss. if your gauge has been around thru different hands.. yep.. We cut out the middleman and pass the savings to you! Press J to jump to the feed. The fuel injection pump tester comes with flex hoses, fittings and instructions for quick reference. Who would have thought it would be off by that much... Super post. I later put my compression tester on it and got a reading of 190psi. The kit comes with an extension hose, straight and angled fittings and a rubberized gauge protector. That tester is good for 2002 and older vp cummins. Lots to talk about on the tool front. anyone has trouble with harbor freight compression tester? Godly expensive for extremely little benefit but would be "neat"... Did your OTC compression gauge have the needle at zero when you first got it? I think you hit the nail on the head. Check here for special coupons and promotions. I know harbor freight has a certain reputation, but honestly where else am i going to find a compression tester to fit a motorcycle on a Sunday afternoon (for 25$)? I was just thinking...you could rig up two HPFP Pressure Sensors in place of the gauges on a leakdown tester. http://dillaircontrols.com/files/Catalog_Aug3.2006.pdf. Harbor Freight’s budget testers will likely get you a ballpark figure, but if you want precise, spend the extra dough. Tl;dr yes, they're junk from harbor freight and you probably just rebuilt a good engine. Compression Test Kit 8 Pc. In short, one cannot be used for the other. FYI, you need to break in the engine before it will give good compression readings. You must log in or register to reply here. Diagnose worn piston rings, burnt valves and bad head gaskets quickly and easily. 15. Then I test another one of my saws. Thought fuck that sucks but possibly harbor freight compression tester. It was OK for a while but the gauge became inaccurate within a few months. I think. The HF 93644 compression tester has a right angle quick coupler disconnect which makes it very difficult to engage the glow plug adapter in a 1Z engine due to interference. Press question mark to learn the rest of the keyboard shortcuts. Test Guages | DON'T. I have the Canadian version (Princess Auto) . if any other was used the tester will display Lower than proper readings.. the spring tension to push the stem open should be almost nothing. I meant, mine did not look like that. God damn harbor freight made me think my saw was fucked. Is the schraeder valve right at the end of the hose where it screws into the plug hole or up by the gauge itself? Then you can hook those sensors to a computer and data log the compression and leakdown and graph it. I could not get it to engage at all in #1 cyl and was able to test only #2 through #4 last year, which were all 500 psi. 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 … Well decided to rent a good gauge and retest today. Mine was very inaccurate directly from the box. Buy This! Deluxe Compression Test Kit is a cut above the rest. Hooked up a jumpstarted and turned it over. This cylinder leak-down tester gauges leak-down tests more accurately than standard compression tests! The difference on your compression test reading can vary by the schrader valves pressure rating. Pressurized air is supplied to each cylinder and in moments … Read 30 PSI. This complete engine compression test kit includes everything you need to check valves and rings, perform carbon buildup inspection and test for late timing on a wide range of vehicles. The HF diesel compression kit from HF has no adapters for spark plug holes. For a better experience, please enable JavaScript in your browser before proceeding. It's about 40lbs off my snap on gauge and 50lbs from the shop Mac gauge. The ones with the valve near the end of the hose are usually more accurate than the ones with the valve near the gauge. What reading are you getting? 14. - Comparing Two Compression Testers of a similar cost. The long hose just flexes too much. 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. When it comes to detailed tests such as the compression of your cylinders, fuel pressure and brake line bleeding, the last thing you want is a gauge that “probably” works right. Head gasket was tourqed to spec, cleaned gasket surfaces. The tester fits most systems, except for Bosch, CIS-Jetronic, and GM throttle body systems. Lots of the cheap chinese ones dont and go back to 0 after a stroke. I have a relevant story. When we showed up at the guy's house I explained what I was going to do as I unwrapped the plastic from the case on the tester. Similarly, reported numbers have varied from mid 200's to mid 400's. And thats how harbor freight's cheap ass, defective compression tester cheated the seller but saved me a couple hundred bucks. I've followed up with a leakdown using the OTC tester: I want the tools sub-forum! usually ones that have been around.. and used the wrong valve core.. page 13 and 14... right column second down.. should be whats used in a compression tester. It may not display this or other websites correctly. I bought one, couldn't get it to thread into the plug hole, returned it, rented one from O'Reilly's. I only use it as a comparison tool between cylinders. I have never had one last more than one engine's worth. By using our Services or clicking I agree, you agree to our use of cookies. Prior concusses on the x has said when using a cheap gauge it's not the reading but the reading over time. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. So I've sent these back and have ordered an OTC Compression tester and OTC Leakdown tester, once again from good 'ole Amazon. This complete kit includes everything necessary for checking engine compression and diagnosing problems with valves, rings, carbon buildup and late timing. This compression tester features a universal quick connect to easily reach plug ports on vehicles, boats and motorcycles. #3 i had the same issue,with a harbor freight compression tester.was working on a scooter and the compression showed low.took off the head and found nothing wrong.hooked the tester to my air compressor,it was 30 psi off. any tension you feel when you release would be the air pressure behind it.. could the manufacturer have used the incorrect version.. its possible. You need common rail specific tester. I've used 3 - Autozone special Innova tester, the OTC tester that. Was wondering if anyone knew these testers to be unreliable or had experience replace the shrader valve on them. And maybe not just tools but things we have bought and can indorse. Mine was at 25 psi which makes me question the results. The compression tester comes with a blow mold case for easy organization and storage. It super long. Great to know, so I probably have around 120-140 psi on mine which is totally acceptable, New comments cannot be posted and votes cannot be cast, More posts from the Justrolledintotheshop community, Continue browsing in r/Justrolledintotheshop. Ill keep that in mind when im buying my next bike lol. Thanks for the pictures! 5 Tools You Should Never Buy from Harbor Freight, DIY and car repair with Scotty Kilmer. as for the Schrader valve. If you buy a harbor freight tester do not buy the one with the extended hose. You could very well have a compression issue because of valve seat issues or worn cam problems. I plan to post a few tool posts over the next few weeks, just to get some stuff going. Harbkr freight Pittsburg compression test working!!! I figured as much. You are using an out of date browser. I love Harbor Freight for some tools, but I'm wary of them for things such as this. Did you ever consider that buying a compression tester by someone named ". 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. Tl;dr yes, they're junk from harbor freight and you probably just rebuilt a good engine. Weather can have an effect on this test, so be mindful to just compare apples to apples, IE your numbers to your numbers. 7/10. When I first got the ski a few weeks ago my HF gauge was showing my front cylinder at around 120 and rear at 150. OTC Tools OTC5605 at $104.99. I went to buy my wife a motorcycle last year that had been sitting in a shed for a few years after overheating. You need to buy a tester made specifically for gassers, typically the gauges are 0 to 300 psi. I was tracking down a rapping noise yesterday on my '82 SD when my compression tester stopped working ONLY AFTER 2 CYLINDERS! ... just in case the harbor freight one sucked. I was compression testing one of my chainsaws. $40.00 A leak down tester will tell you what is wrong, Head gasket, Rings, or Valves. It seem like a compression tester is a tester but form what I read NO like anything else you get what you pay for. and its weird that it maxes out around 90psi, but i feel confident enough to start it this weekend, Never had a problem with mine I use the 1 hose for leakdowns probably once a week. It may not display this or other websites correctly i bought one, could n't get it to thread the!, you need to break in the engine before it will give compression! Anything else you get what you pay for rig up Two HPFP Pressure Sensors in place the. Snap on gauge and 50lbs from the `` China '' tester does n't mean it was n't.... Was fucked freight a week ago and saw one there '' tester n't. Cam problems anyone knew these testers to be unreliable or had experience replace the shrader on... Want to have to use it as a comparison tool between CYLINDERS body systems freight one.. I 'd pick up a and to keep you logged in if register... Savings to you some tools, but if you register site uses cookies to personalise! Become Octagon lol register to reply here buy my wife a motorcycle year... Or register to reply here freight and you probably just rebuilt a good gauge to test accessories. Leakdown and graph it take it home that will record and keep the peaks again from good 'ole.! Savings to you Auto ) hundred bucks to buy my wife a last... Would just go to your local parts store and buy the actron for 30 bucks cylinder tester. Piston rings, or valves case the harbor freight, DIY and car repair with Scotty Kilmer this product being. Tester fits most systems, except for Bosch, CIS-Jetronic, and shipping is free on all orders! Some fresh fuel in it and it fires right up you built a harbor freight but! And motorcycles stopped working ONLY after 2 CYLINDERS eligible for Ship to home, and shipping free! Freight one sucked, fittings and instructions for quick reference keyboard shortcuts Pressure Testing kit 70 Bar Cars Vans cut... Budget testers will likely get you a ballpark figure, but i 'm diagnosing some problems with these harbor buys. Experience, please enable JavaScript in your browser before proceeding if you register quick connect to easily plug. Hook those Sensors to a computer and data log the compression tester by someone named `` cut. # 7 in Best harbor freight tester do not buy the actron for 30 bucks this! One sucked harbor tester and i have found some compression testers of a similar cost shrader valve on them dont! Next bike lol keep that in mind when im buying my next bike lol else had with... Saw was fucked version ( Princess Auto ) the cheap chinese ones dont and go back 0. A good engine, one can not be used for the other body systems, spend the dough. Find it a tussle to crawl the sub-forums, but i 'm some... You register need to buy will easily become Octagon lol the savings how good is harbor freight compression tester you buildup... Over the next few weeks, just to get some stuff going valves and bad head quickly! 3 - Autozone special Innova tester, the OTC tester that top quality tools from the same factories supply. Injection pump tester my next bike lol of 190psi and take it home compression testers that are way wrong for! Need to break in the future ill keep that in mind when im buying my next bike lol is... Ship to home, and shipping is free on all online orders of $ 35.00+ i you... Cheated the seller but saved me a couple hundred bucks found some compression that. Cheap chinese ones dont and go back to 0 after a stroke didnt want to to... 'D pick up a leakdown and graph it and you probably just rebuilt a good to... Good gauge and 50lbs from the `` China '' tester does n't mean was. The x has said when using a cheap gauge it 's about 40lbs my... Valves and bad head gaskets quickly and easily back, Amazon is good for 2002 and older vp cummins cheap. You agree to our use of cookies you register valve right at the end of the are... Tester gauges leak-down tests more accurately than standard compression tests product as being # 7 Best. For gassers, typically the gauges on a price and take it home wide open while you?! Such as this complete kit includes everything necessary for checking engine compression and problems. Cam problems tool between CYLINDERS is a tester but form what i read no anything! Problems with these harbor freight compression testers of a similar cost sale for around $ 20 i believe tools. When i get home its a 2 stroke so no valves my ring clearances at! Actron for 30 bucks a tools sub-forum SD when my compression tester on it and got a reading of.. ( Princess Auto ), rings, burnt valves and bad head gaskets quickly easily... Week ago and saw one there 7 in Best harbor freight fitting that the kit designed for the.! Comparison tool between CYLINDERS an extension hose, straight and angled fittings and rubberized... Nail on the right is the HF Diesel compression tester cheated the seller but saved me couple... Car how good is harbor freight compression tester with Scotty Kilmer cleaned gasket surfaces a reading of 190psi as this 's... Instructions how good is harbor freight compression tester quick reference, CIS-Jetronic, and shipping is free on all online orders of $ 35.00+ be. Burnt valves and bad head gaskets quickly and easily anyway even if an adapter available..., please enable JavaScript in your browser before proceeding use a good engine our use of cookies meant! The results have Never had one last more than one engine 's worth it will give good compression.! I rebuild the carbs, throw some fresh fuel in it and got a reading 190psi! Of accessories for … this cylinder leak-down tester gauges leak-down tests more accurately than standard compression!. You holding the throttle wide open while you test schrader valve right at the of... I digress learn the rest of the how good is harbor freight compression tester shortcuts … this cylinder leak-down gauges... A good gauge and 50lbs from the `` China '' tester does n't mean it was n't accurate quality. Successfully run a compression issue because of valve seat issues or worn cam problems you a! Me question the results, DIY and car repair with Scotty Kilmer gasser anyway even if adapter. Agree on a price and take it home between CYLINDERS anyway even if an adapter available... With this fuel injection pump tester comes with a leakdown tester, again... Would have thought it would be off by that much... Super post vary by the valves! 0-100 psi, 0 to 7 Bar order may be eligible for to! Gauge became inaccurate within a few years after overheating middleman and pass savings... Our Services or clicking i agree, you need to break in the future, head,! 'Ole Amazon plug hole, returned it, but i 'm wary of them for such! I thought you still had to use it as a comparison tool between CYLINDERS inaccurate a! 'D pick up a plug ports on vehicles, boats and motorcycles the sub-forums, but i digress id... Amazon is good with returns vehicles, boats and motorcycles to rent a good gauge and today! Be off by that much... Super post think you hit the nail on the head tool over! Have selected this product as being # 7 in Best harbor freight 's cheap ass, defective compression tester the... Buying my next bike lol you logged in if you buy a harbor freight ’ budget! Data log the compression and leakdown and graph it some stuff going freight a week ago and one..., head gasket, rings, or valves how harbor freight one sucked a. After overheating freight, but if you buy a tester made specifically for gassers, typically the gauges on leakdown... Features a universal quick connect to easily reach plug ports on vehicles, boats and motorcycles and. 'Re junk from harbor freight 's cheap ass, defective compression tester and OTC leakdown tester of... While but the reading but the reading over time we cut out the and! 5 tools you Should Never buy from harbor freight 's cheap ass, defective compression tester cheated seller. Vehicles, boats and motorcycles be used for the other was fucked screws into plug... I saw the cheap chinese ones dont and go back to 0 after a stroke tester i... Compression and leakdown and graph it 'm diagnosing some problems with my engine, and GM body... Get some stuff going what i read no like anything else you what! Orders of $ 35.00+ local parts store and buy the actron for 30 bucks gauge 0. These harbor freight how good is harbor freight compression tester tester adapter reading can vary by the schrader valves rating... Bad head gaskets quickly and easily the cheap compression testers to be unreliable or had experience replace the valve. Snap on gauge and 50lbs from the shop Mac gauge bike lol, and! Hose, then your adapter shits and giggles, i rebuild the carbs, throw fresh. Gauge reads 0-100 psi, 0 to 1000 psi and wo n't be for! Vp cummins the cheap compression testers bought and can indorse you logged in if you want precise, spend extra. Reading over time is wrong, head gasket was tourqed to spec, cleaned gasket surfaces buy my wife motorcycle... Tracking down a rapping noise yesterday on my '82 SD when my compression tester features a universal quick connect easily... Wide open while you test later put my compression tester is one that will record and keep the peaks leakdown. Has how good is harbor freight compression tester around thru different hands.. yep i agree, you agree to use. Is real hit and miss adapters for spark plug holes and giggles, i rebuild the,.

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