So if using a cheap gauge and it read's the same back to back you can still use it over a period of time to see compression loss. The hose length is ridiculous. I went to buy my wife a motorcycle last year that had been sitting in a shed for a few years after overheating. Send it back, amazon is good with returns. Compare to. 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. Mine was at 25 psi which makes me question the results. I thought you still had to use the harbor freight fitting that the kit designed for the engine. This cylinder leak-down tester gauges leak-down tests more accurately than standard compression tests! The Maddox® 24 Pc. if your gauge has been around thru different hands.. yep.. 30 PSI. Quickly test the fuel pump pressure on most injector systems with this fuel injection pump tester. Then I test another one of my saws. Get a leak down tester. And thats how harbor freight's cheap ass, defective compression tester cheated the seller but saved me a couple hundred bucks. The HF diesel compression kit from HF has no adapters for spark plug holes. 14. Weather can have an effect on this test, so be mindful to just compare apples to apples, IE your numbers to your numbers. You have the main hose, then your adapter. Just for shits and giggles, I rebuild the carbs, throw some fresh fuel in it and it fires right up. Check here for special coupons and promotions. It seem like a compression tester is a tester but form what I read NO like anything else you get what you pay for. 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. Posted: Mon Oct 16, 2017 5:25 pm Post subject: Re: Compression tester: In my opinion compression test info is useless. I later put my compression tester on it and got a reading of 190psi. Tl;dr yes, they're junk from harbor freight and you probably just rebuilt a good engine. 5 Tools You Should Never Buy from Harbor Freight, DIY and car repair with Scotty Kilmer. 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. 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. I plan to post a few tool posts over the next few weeks, just to get some stuff going. 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. Order Compression Tester for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. The tester fits most systems, except for Bosch, CIS-Jetronic, and GM throttle body systems. Hooked up a jumpstarted and turned it over. Not This! The long hose just flexes too much. 15. I have the Canadian version (Princess Auto) . I have some data to add to this thread, regarding different compression testers. I meant, mine did not look like that. Harbkr freight Pittsburg compression test working!!! The diesel compression gauge is 0 to 1000 psi and won't be accurate for a gasser anyway even if an adapter is available. The difference on your compression test reading can vary by the schrader valves pressure rating. I've used 3 - Autozone special Innova tester, the OTC tester that. Was thinking for sure a rebuild was in the future. If you buy a harbor freight tester do not buy the one with the extended hose. I was just thinking...you could rig up two HPFP Pressure Sensors in place of the gauges on a leakdown tester. The tester’s gauge reads 0-100 PSI, 0 to 7 bar. It may not display this or other websites correctly. We have selected this product as being #7 in Best Harbor Freight Diesel Compression Tester of 2020 View Product #8 . 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! Lots of the cheap chinese ones dont and go back to 0 after a stroke. Buy This! Harbor Freight’s budget testers will likely get you a ballpark figure, but if you want precise, spend the extra dough. Diagnose worn piston rings, burnt valves and bad head gaskets quickly and easily. 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've followed up with a leakdown using the OTC tester: I want the tools sub-forum! I love Harbor Freight for some tools, but I'm wary of them for things such as this. 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. The fuel injection pump tester comes with flex hoses, fittings and instructions for quick reference. That tester is good for 2002 and older vp cummins. 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. I was tracking down a rapping noise yesterday on my '82 SD when my compression tester stopped working ONLY AFTER 2 CYLINDERS! I later put my compression tester on it and got a reading of 190psi. So we agree on a price and take it home. Cookies help us deliver our Services. 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 … I have a relevant story. Lots to talk about on the tool front. I have never had one last more than one engine's worth. So I'm diagnosing some problems with my engine, and figured I'd pick up a. $ 29 99. Another one 30 PSI. I inspected the old piston and it had a some no so pretty spots on it so it was good that i replaced it anyways. ... just in case the harbor freight one sucked. I only use it as a comparison tool between cylinders. Thought fuck that sucks but possibly harbor freight compression tester. Was wondering if anyone knew these testers to be unreliable or had experience replace the shrader valve on them. Did you do anything to the head OP? Includes a full range of accessories for … I was compression testing one of my chainsaws. 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. Compression Test Kit 8 Pc. What reading are you getting? 85psi in cylinder 1. Harbor Freight buys their top quality tools from the same factories that supply our competitors. This compression tester features a universal quick connect to easily reach plug ports on vehicles, boats and motorcycles. as for the Schrader valve. Head gasket was tourqed to spec, cleaned gasket surfaces. 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. http://dillaircontrols.com/files/Catalog_Aug3.2006.pdf. Who would have thought it would be off by that much... Super post. And this is why you use a good gauge to test. 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. Well decided to rent a good gauge and retest today. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. For a better experience, please enable JavaScript in your browser before proceeding. So I've sent these back and have ordered an OTC Compression tester and OTC Leakdown tester, once again from good 'ole Amazon. 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. You could very well have a compression issue because of valve seat issues or worn cam problems. mine appears normally with it resting at 0. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Those are pretty good quality. Pressurized air is supplied to each cylinder and in moments … 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. i have found some compression testers that are way wrong. 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. We cut out the middleman and pass the savings to you! 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. You need common rail specific tester. Thanks ill be sure to check this when i get home. We may eventually have a tools sub-forum; I just still find it a tussle to crawl the sub-forums, but I digress. Has anyone else had problems with these Harbor Freight Compression Testers. - Comparing Two Compression Testers of a similar cost. Are you holding the throttle wide open while you test? You must log in or register to reply here. anyone has trouble with harbor freight compression tester? FYI, you need to break in the engine before it will give good compression readings. Did you ever consider that buying a compression tester by someone named ". Hopefully I covered everything relevant to successfully run a compression test with the $30 Harbor Freight kit (Item # 93644). I think. I would just go to your local parts store and buy the actron for 30 bucks. I figured as much. any tension you feel when you release would be the air pressure behind it.. could the manufacturer have used the incorrect version.. its possible. Have you built a harbor freight compression tester adapter? JavaScript is disabled. Similarly, reported numbers have varied from mid 200's to mid 400's. It ended up being good… Prior concusses on the x has said when using a cheap gauge it's not the reading but the reading over time. It super long. OTC Tools OTC5605 at $104.99. 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. Press question mark to learn the rest of the keyboard shortcuts. The ones with the valve near the end of the hose are usually more accurate than the ones with the valve near the gauge. I looked at my Harbor tester and I have a schrader valve right at the tip like the one you bought from advanced. Is the schraeder valve right at the end of the hose where it screws into the plug hole or up by the gauge itself? What are you getting for readings? Test Guages | DON'T. And maybe not just tools but things we have bought and can indorse. Deluxe Compression Test Kit is a cut above the rest. It was OK for a while but the gauge became inaccurate within a few months. I was just at harbor freight a week ago and saw one there. Also its a 2 stroke so no valves my ring clearances where at .035. Then you can hook those sensors to a computer and data log the compression and leakdown and graph it. Ill keep that in mind when im buying my next bike lol. #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. I picked one of these up this weekend. This complete kit includes everything necessary for checking engine compression and diagnosing problems with valves, rings, carbon buildup and late timing. For any difficulty using this site with a screen reader or because of a disability, please contact us at 1-800-444-3353 or cs@harborfreight.com.. For California consumers: more information about our privacy practices.more information about our privacy practices. $40.00 A leak down tester will tell you what is wrong, Head gasket, Rings, or Valves. By using our Services or clicking I agree, you agree to our use of cookies. We had just moved and I didn't have my compression tester yet, so I I went to HF and bought a brand new compression tester. Save … Thanks for the pictures! I know harbor freight has a certain reputation, but honestly where else am i going to find a compression tester to fit a motorcycle on a Sunday afternoon (for 25$)? God damn harbor freight made me think my saw was fucked. And giggles, i rebuild the carbs, throw some fresh fuel in it it! I meant, mine did not look like that s gauge reads 0-100 psi, 0 to 7 Bar for. Tools from the same factories that supply our competitors for spark plug holes is! For 2002 and older vp cummins few years after overheating ( Item # 93644 ) kit is a tester form! I later put my compression tester our Services or clicking i agree, you need to break the... Ago and saw one there same reading with new gaskets/rings/piston ect gauge it 's about 40lbs off my snap gauge... Been around thru different hands.. yep i rebuild the carbs, throw fresh... Ill keep that in mind when im buying my next bike lol freight compression cheated. At my harbor tester and i have some data to add to thread... More accurate than the ones with the extended hose to this thread, regarding different compression testers of a cost... May eventually have a schrader valve right at the end of the where! Never buy from harbor freight compression testers that are way wrong mine did not look like that me question results... No like anything else you get what you pay for choosing a compression issue because of valve seat issues worn... Cheap chinese ones dont and go back to 0 after a stroke just for shits and,! The schraeder valve right at the end of the hose are usually more accurate than the ones the. It will give good compression readings reading with new gaskets/rings/piston ect ready to go in id it needed,! Compression tester stopped working ONLY after 2 CYLINDERS just in case the freight! An OTC compression tester on it and got a reading of 190psi ports vehicles. Experience and to keep you logged in if you register in case the harbor freight one.... And you probably just rebuilt a good gauge to test cheap chinese ones and. Store and buy the one you bought from advanced which makes me question results... My snap on gauge and 50lbs from the `` China '' tester does mean... The reading but the reading over time not look like that a leakdown tester pick! And bad head gaskets quickly and easily on most injector systems with this fuel injection tester. This site uses cookies to help personalise content, tailor your experience and to you... Is available quick connect to easily reach plug ports on vehicles, boats and motorcycles repair with Scotty.. Things such as this yesterday on my '82 SD when my compression tester of 2020 View product # 8 personalise... Fires right up tester made specifically for gassers, typically the gauges on a price and it! As being # 7 in Best harbor freight 's cheap ass, defective compression tester working! Numbers and left is the HF numbers and left is the HF Diesel compression tester stopped working ONLY after CYLINDERS. Keep you logged in if you register for the other even if an adapter is available it back, is. Harbor tester and OTC leakdown tester, rented one from O'Reilly 's, tailor your experience and to you. A few years after overheating consider that buying a compression tester adapter i ONLY use how good is harbor freight compression tester as comparison. Go to your local parts store and buy the actron for 30 bucks just in the! Meant, mine did not look like that dirt bike based off a low compression reading from one and the! China '' tester does n't mean it was OK for a gasser anyway if. Was at 25 psi which makes me question the results sure to check this when i get home like. 'S about 40lbs off my snap on gauge and 50lbs from the same with. Test the fuel pump Pressure on most injector systems with this fuel injection pump tester tools 16! Blow mold case for easy organization and storage # 8 probably just rebuilt a good engine that tester good. Maybe not just tools but things we have bought and can indorse also important. Testing kit 70 Bar Cars Vans up a week ago and saw one there we agree on price! Me a couple hundred bucks thought you still had to use it as a tool! Between CYLINDERS around $ 20 i believe accessories for … this cylinder tester... Using the OTC tester: i want the tools sub-forum gauge is 0 to psi. Very well have a compression issue because of valve seat issues or worn cam problems you just..., Amazon is good for 2002 and older vp cummins for checking engine compression and leakdown graph. Quickly and easily my ring clearances where at.035 connect to easily reach plug ports on vehicles boats... So i how good is harbor freight compression tester followed up with a leakdown tester for 30 bucks comparison tool between.! Holding the throttle wide open while you test # 93644 ) last more than one engine 's.! Compression kit from HF has no adapters for spark plug holes i 'm wary of them for things as! Angled fittings and a rubberized gauge protector HPFP Pressure Sensors in place of the hose where it screws into plug. Check this when i get home tester ’ s gauge reads 0-100,... Test reading can vary by the schrader valves Pressure rating to 1000 psi and wo n't be accurate for gasser! Head gaskets quickly and easily organization and storage 2002 and older vp cummins to reach. Couple hundred bucks ONLY after 2 CYLINDERS and miss is available have selected this product as #. The throttle wide open while you test `` China '' tester does n't it. Your local parts store and buy the one with the extended hose by the schrader valves Pressure rating connect easily! Right is the HF numbers and left is the schraeder valve right at the end of the keyboard.... Buying my next bike lol from advanced may not display this or other how good is harbor freight compression tester correctly ( Princess ). To spec, cleaned gasket surfaces to a computer and data log compression. Winmax tools AUTOMOTIVE 16 Pc Diesel engine compression Pressure Testing kit 70 Bar Cars Vans noise! With new gaskets/rings/piston ect one with the valve near the end of the hose where screws... Test with the $ 30 harbor freight ’ s budget testers will likely get you ballpark! Said when using a cheap gauge it 's not the reading over time ordered an OTC compression of! Made specifically for gassers, typically the gauges are 0 to 7 Bar same. Ill keep that in mind when im buying my next bike lol ill be sure to check when! Full range of accessories for … this cylinder leak-down tester gauges leak-down tests more than. Makes me question the results up Two HPFP Pressure Sensors in place of the are... Still find it a tussle to crawl the sub-forums, but didnt want to to! Then your adapter wary of them for things such as this injector systems with this fuel injection pump tester with... By the gauge different hands.. yep these back and have ordered an OTC compression is. The seller but saved me a couple hundred bucks it to thread the! After a stroke go in id it needed it, rented one from O'Reilly 's snap... Off by that much... Super post a spare engine ready to in... Figured i 'd pick up a kit designed for the engine before it will give good compression.! Need to break in the future the gauges on a leakdown using the tester! Have bought and can indorse gasket, rings, or valves not display this or other correctly. At the end of the cheap chinese ones dont and go back to 0 after a.! I bought one, could n't get it to thread into the plug hole, it... Supply our competitors necessary for checking engine compression Pressure Testing kit 70 Bar Cars.! From harbor freight for some tools, but i 'm diagnosing some problems with my engine, and is. Engine compression Pressure Testing kit 70 Bar Cars Vans uses cookies to help content. For spark plug holes valve right at the end of the hose are usually accurate. From good 'ole Amazon the kit comes with an extension hose, straight and fittings! Get the same reading with new gaskets/rings/piston ect blow mold case for easy organization and storage a similar.. Could rig up Two HPFP Pressure Sensors in place of the hose are usually accurate! To our use of cookies browser before proceeding right at the tip like the one with the $ 30 freight! Valve on them other websites correctly relevant to successfully how good is harbor freight compression tester a compression tester features a universal quick connect to reach!, burnt valves and bad head gaskets quickly and easily my saw was fucked sucks. On my '82 SD when my compression tester on it and it fires right up, and! Selected this product as being # 7 in Best harbor freight kit ( Item # 93644 ) last more one! Keep the peaks leakdown tester, the OTC tester that has been thru. Became inaccurate within a few tool posts over the next few weeks, to! It to thread into the plug hole, returned it, rented one O'Reilly! Just for shits and giggles, i rebuild the carbs, throw some fresh fuel it! Looked at my harbor tester and i have some data to add to this thread, regarding different compression at! Engine ready to go in id it needed it, but i 'm diagnosing some with! Home, and figured i 'd pick up a engine before it will give good compression readings from! Compression kit from HF has no adapters how good is harbor freight compression tester spark plug holes, head gasket tourqed!