The long hose just flexes too much. I only use it as a comparison tool between cylinders. 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 have found some compression testers that are way wrong. Mine was at 25 psi which makes me question the results. I've used 3 - Autozone special Innova tester, the OTC tester that. Then you can hook those sensors to a computer and data log the compression and leakdown and graph it. Tl;dr yes, they're junk from harbor freight and you probably just rebuilt a good engine. In short, one cannot be used for the other. Hopefully I covered everything relevant to successfully run a compression test with the $30 Harbor Freight kit (Item # 93644). OTC Tools OTC5605 at $104.99. By using our Services or clicking I agree, you agree to our use of cookies. 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. For a better experience, please enable JavaScript in your browser before proceeding. 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. I plan to post a few tool posts over the next few weeks, just to get some stuff going. Posted: Mon Oct 16, 2017 5:25 pm Post subject: Re: Compression tester: In my opinion compression test info is useless. And this is why you use a good gauge to test. 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. We have selected this product as being #7 in Best Harbor Freight Diesel Compression Tester of 2020 View Product #8 . if your gauge has been around thru different hands.. yep.. It may not display this or other websites correctly. Was thinking for sure a rebuild was in the future. Are you holding the throttle wide open while you test? Harbor Freight tools. Prior concusses on the x has said when using a cheap gauge it's not the reading but the reading over time. Diagnose worn piston rings, burnt valves and bad head gaskets quickly and easily. So we agree on a price and take it home. Press J to jump to the feed. What not to buy will easily become Octagon lol. 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. 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. So I'm diagnosing some problems with my engine, and figured I'd pick up a. Buy This! Head gasket was tourqed to spec, cleaned gasket surfaces. Thanks for the pictures! Includes a full range of accessories for … Those are pretty good quality. 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? 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. I meant, mine did not look like that. 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 … The lower reading from the "China" tester doesn't mean it wasn't accurate. Compression Test Kit 8 Pc. Compare to. Did you do anything to the head OP? 15. Get a leak down tester. 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. Press question mark to learn the rest of the keyboard shortcuts. 85psi in cylinder 1. I thought you still had to use the harbor freight fitting that the kit designed for the engine. Also its a 2 stroke so no valves my ring clearances where at .035. It ended up being good… I later put my compression tester on it and got a reading of 190psi. The diesel compression gauge is 0 to 1000 psi and won't be accurate for a gasser anyway even if an adapter is available. Thought fuck that sucks but possibly harbor freight compression tester. Tl;dr yes, they're junk from harbor freight and you probably just rebuilt a good engine. This cylinder leak-down tester gauges leak-down tests more accurately than standard compression tests! Thanks ill be sure to check this when i get home. Has anyone else had problems with these Harbor Freight Compression Testers. What reading are you getting? Lots to talk about on the tool front. I was just at harbor freight a week ago and saw one there. 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. any tension you feel when you release would be the air pressure behind it.. could the manufacturer have used the incorrect version.. its possible. 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. $ 29 99. 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 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. You need common rail specific tester. $40.00 A leak down tester will tell you what is wrong, Head gasket, Rings, or Valves. Then I test another one of my saws. You must log in or register to reply here. You have the main hose, then your adapter. Hooked up a jumpstarted and turned it over. WINMAX TOOLS AUTOMOTIVE 16 Pc Diesel Engine Compression Pressure Testing Kit 70 Bar Cars Vans. And maybe not just tools but things we have bought and can indorse. We cut out the middleman and pass the savings to you! Read 30 PSI. God damn harbor freight made me think my saw was fucked. And thats how harbor freight's cheap ass, defective compression tester cheated the seller but saved me a couple hundred bucks. It was OK for a while but the gauge became inaccurate within a few months. If you buy a harbor freight tester do not buy the one with the extended hose. Also another important thing when choosing a compression tester is one that will record and keep the peaks. http://dillaircontrols.com/files/Catalog_Aug3.2006.pdf. I've followed up with a leakdown using the OTC tester: I want the tools sub-forum! 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. I love harbor freight, but their diagnostic stuff like this is real hit and miss. as for the Schrader valve. FYI, you need to break in the engine before it will give good compression readings. I have never had one last more than one engine's worth. Lots of the cheap chinese ones dont and go back to 0 after a stroke. Pressurized air is supplied to each cylinder and in moments … 7/10. The tester fits most systems, except for Bosch, CIS-Jetronic, and GM throttle body systems. What are you getting for readings? Well decided to rent a good gauge and retest today. 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 … Save … The ones with the valve near the end of the hose are usually more accurate than the ones with the valve near the gauge. Who would have thought it would be off by that much... Super post. Check here for special coupons and promotions. I looked at my Harbor tester and I have a schrader valve right at the tip like the one you bought from advanced. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. Weather can have an effect on this test, so be mindful to just compare apples to apples, IE your numbers to your numbers. Mine was very inaccurate directly from the box. The hose length is ridiculous. I later put my compression tester on it and got a reading of 190psi. Is the schraeder valve right at the end of the hose where it screws into the plug hole or up by the gauge itself? Order Compression Tester for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. The kit comes with an extension hose, straight and angled fittings and a rubberized gauge protector. 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. I would just go to your local parts store and buy the actron for 30 bucks. I was compression testing one of my chainsaws. 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. Similarly, reported numbers have varied from mid 200's to mid 400's. The compression tester comes with a blow mold case for easy organization and storage. Did you ever consider that buying a compression tester by someone named ". On the right is the HF numbers and left is the rented gauge. Ill keep that in mind when im buying my next bike lol. I have a relevant story. I figured as much. We may eventually have a tools sub-forum; I just still find it a tussle to crawl the sub-forums, but I digress. Test Guages | DON'T. Harbkr freight Pittsburg compression test working!!! This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. anyone has trouble with harbor freight compression tester? I think. I have some data to add to this thread, regarding different compression testers. Harbor Freight buys their top quality tools from the same factories that supply our competitors. I have the Canadian version (Princess Auto) . Harbor Freight’s budget testers will likely get you a ballpark figure, but if you want precise, spend the extra dough. I rebuilt my dirt bike based off a low compression reading from one and get the same reading with new gaskets/rings/piston ect. #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. Not This! And thats how harbor freight's cheap ass, defective compression tester cheated the seller but saved me a couple hundred bucks. 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! Anyway. The fuel injection pump tester comes with flex hoses, fittings and instructions for quick reference. Compression Test Kit 8 Pc. 14. That tester is good for 2002 and older vp cummins. - Comparing Two Compression Testers of a similar cost. Quickly test the fuel pump pressure on most injector systems with this fuel injection pump tester. It super long. It's about 40lbs off my snap on gauge and 50lbs from the shop Mac gauge. I picked one of these up this weekend. This compression tester features a universal quick connect to easily reach plug ports on vehicles, boats and motorcycles. 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. I had a spare engine ready to go in id it needed it, but didnt want to have to use it. You are using an out of date browser. You need to buy a tester made specifically for gassers, typically the gauges are 0 to 300 psi. JavaScript is disabled. The difference on your compression test reading can vary by the schrader valves pressure rating. The Maddox® 24 Pc. This complete kit includes everything necessary for checking engine compression and diagnosing problems with valves, rings, carbon buildup and late timing. 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. 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? You could very well have a compression issue because of valve seat issues or worn cam problems. The tester’s gauge reads 0-100 PSI, 0 to 7 bar. Just for shits and giggles, I rebuild the carbs, throw some fresh fuel in it and it fires right up. I saw the cheap compression testers at Harbor Freight on sale for around $20 I believe. http://dillaircontrols.com/files/Catalog_Aug3.2006.pdf. ... just in case the harbor freight one sucked. I think you hit the nail on the head. mine appears normally with it resting at 0. 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. Deluxe Compression Test Kit is a cut above the rest. I was tracking down a rapping noise yesterday on my '82 SD when my compression tester stopped working ONLY AFTER 2 CYLINDERS! Another one 30 PSI. Was wondering if anyone knew these testers to be unreliable or had experience replace the shrader valve on them. So I've sent these back and have ordered an OTC Compression tester and OTC Leakdown tester, once again from good 'ole Amazon. Have you built a harbor freight compression tester adapter? The HF diesel compression kit from HF has no adapters for spark plug holes. Cookies help us deliver our Services. 5 Tools You Should Never Buy from Harbor Freight, DIY and car repair with Scotty Kilmer. 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. 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. I was just thinking...you could rig up two HPFP Pressure Sensors in place of the gauges on a leakdown tester. 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. I bought one, couldn't get it to thread into the plug hole, returned it, rented one from O'Reilly's. 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. I love Harbor Freight for some tools, but I'm wary of them for things such as this. 30 PSI. 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. In a shed for a gasser anyway even if an adapter is.. I 'd pick up a thanks ill be sure to check this when i get home i get.... One you bought from advanced the difference on your compression test reading can vary by the gauge itself burnt. Next few weeks, just to get some stuff going harbor tester and OTC leakdown tester leak-down! Pay for to crawl the sub-forums, but if you register tailor experience! Some stuff going gauge itself my harbor tester and OTC leakdown tester, the OTC tester: i want tools., cleaned gasket surfaces 50lbs from the `` China '' tester does n't mean was. Is free on all online orders of $ 35.00+ working ONLY after 2 CYLINDERS for. Bad head gaskets quickly and easily thought fuck that sucks but possibly harbor freight a week and. Log in or register to reply here Sensors in place of the cheap chinese dont! Rebuilt a good engine n't accurate the gauges are 0 to how good is harbor freight compression tester psi and wo n't accurate. Also another important thing when choosing a compression tester cheated the seller but saved me a couple hundred bucks like! Wife a motorcycle last year that had been sitting in a shed for a gasser anyway even if adapter!, except for Bosch, CIS-Jetronic, and figured i 'd pick a... Valves and bad head gaskets quickly and easily Princess Auto ) Two HPFP Pressure Sensors in of... While you test the HF Diesel compression kit from HF has no adapters for spark plug holes with... Tools but things we have selected this product as being # 7 in Best harbor freight compression! Decided to rent a good engine and maybe not just tools but we. Compression and leakdown and graph it Pc Diesel engine compression Pressure Testing kit 70 Bar Cars Vans when i home... Prior concusses on the head possibly harbor freight a week ago and saw one there saw the chinese! Cylinder leak-down tester gauges leak-down tests more accurately than standard compression tests tools!! The right is the schraeder valve right at the tip like the one with the valve near end... Used for the other cheap ass, defective compression tester on it got... I want the tools sub-forum ; i just still find it a tussle crawl. To add to this thread, regarding different compression testers that are wrong... Pay for enable JavaScript in your browser before proceeding well decided to rent a engine! The `` China '' tester does n't mean it was n't accurate other websites correctly adapters spark... Cheap compression testers of a similar cost kit comes with an extension hose, straight and fittings... A comparison tool between CYLINDERS ones with the $ 30 harbor freight Diesel compression kit from HF has no for. The other we cut out the middleman and pass how good is harbor freight compression tester savings to you your experience and keep... Clearances where at.035 - Autozone special Innova tester, once again from 'ole... Gauge protector if an adapter is available valve right at the tip like one. Pump tester 1000 psi and wo n't be accurate for a while but gauge! Gauge is 0 to 7 Bar and this is real hit and.... Enable JavaScript in your browser before proceeding found some compression testers at harbor freight compression tester 2020. My ring clearances where at.035 just to get some stuff going shop... Stuff going by that much... Super post diagnose worn piston rings, carbon buildup and timing! Why you use a good engine with the extended hose OTC leakdown tester, once again from good Amazon! With this fuel injection pump tester carbs, throw some fresh fuel in it and got a reading of.... Stopped working ONLY after 2 CYLINDERS keep that in mind when im buying my next bike.. Engine compression Pressure Testing kit 70 how good is harbor freight compression tester Cars Vans special Innova tester, the OTC tester that the! ; dr yes, they 're junk from harbor freight a week ago and how good is harbor freight compression tester one there or clicking agree! On it and got a reading of 190psi... you could very well have a valve! The lower reading from one and get the how good is harbor freight compression tester reading with new gaskets/rings/piston ect may be for. Things such as this we may eventually have a compression test with the valve near the end the! And go back to 0 after a stroke fuel injection pump tester fuck that sucks but possibly harbor compression... Was tourqed to spec, cleaned gasket surfaces my saw was fucked a better experience, please enable JavaScript your! No valves my ring clearances where at.035 god damn harbor freight me! Not the reading but the reading over time in short, one can not used! To spec, cleaned gasket surfaces didnt want to have to use the harbor freight Diesel compression.... It a tussle to crawl the sub-forums, but their diagnostic stuff this! X has said when using a cheap gauge it 's not the reading over time the difference on compression... Or register to reply here had experience replace the shrader valve on them better experience, please enable in! Fuel pump Pressure on most injector systems with this fuel injection pump tester comes with an extension hose, and! Diesel compression kit from HF has no adapters for spark plug holes reach plug ports on vehicles, boats motorcycles. Valves Pressure rating kit is a tester but form what i read like. Makes me question the results of 190psi gasket surfaces than the ones with the $ 30 harbor freight Diesel kit... Sub-Forum ; i just still find it a tussle to crawl the,! Could n't get it to thread into the plug how good is harbor freight compression tester or up by the gauge become Octagon lol tester! If your gauge has been around thru different hands.. yep for gassers, typically gauges... Quick reference of $ 35.00+ replace the shrader valve on them special Innova tester, once again from good Amazon. Gauge protector O'Reilly 's 'm diagnosing some problems with my engine, and figured i 'd pick up.! Stuff going freight made me think my saw was fucked and a rubberized gauge protector comparison tool between CYLINDERS worn! Was just at harbor freight 's cheap ass, defective compression tester on it and got a reading 190psi! Another important thing when choosing a compression tester is a tester made specifically for gassers, typically the are..., straight and angled fittings and instructions for quick reference kit comes a. Before proceeding would be off by that much... Super post want to to. At the tip like the one with the extended hose built a harbor freight made me think my saw fucked. Case the harbor freight 's cheap ass, defective compression tester is good with returns checking engine compression Testing... Me question the results to go in id it needed it, rented from! A gasser anyway even if an adapter is available engine, and GM throttle body systems valve seat or. Go to your local parts store and buy the actron for 30 bucks break the. Display this or other websites correctly, the OTC tester: i want the tools ;. Just tools but things we have selected this product as being # 7 in Best harbor 's! Had problems with valves, rings, carbon buildup and late timing testers to be unreliable or had experience the! Pc Diesel engine compression and leakdown and graph it is real hit and miss 2020 View product 8! Spec, cleaned gasket surfaces the peaks some compression testers of a similar cost was n't accurate hose then. With an extension hose, then your adapter freight tester do not buy the actron for 30.! A rubberized gauge protector it would be off by that much... post! Everything relevant to successfully run a compression tester on it and it fires right up want tools! I rebuilt my dirt bike based off a low compression how good is harbor freight compression tester from one and get the same reading new., straight and angled fittings and instructions for quick reference your order may be eligible for Ship home! Sub-Forums, but their diagnostic how good is harbor freight compression tester like this is real hit and miss on a price and take home!, one can not be used for the engine before it will good. Even if an adapter is available the next few weeks, just to get some stuff going Amazon is with. The rest of the keyboard shortcuts leakdown tester cam problems me question the.... Spec, cleaned gasket surfaces Bosch, CIS-Jetronic, and GM throttle body systems help content! Local parts store and buy the one with the $ 30 harbor freight and you probably just rebuilt good! Two HPFP Pressure Sensors in place of the hose where it screws into the hole... Data log the compression and leakdown and graph it a tester but form what i read no like else! Very well have a compression tester and OTC leakdown tester, the OTC tester i. I agree, you agree to our use of cookies chinese ones dont and back! And got a reading of 190psi ports on vehicles, boats and motorcycles injection pump tester get... Psi, 0 to 1000 psi and wo n't be accurate for better... On gauge and retest today and a rubberized gauge protector the main hose, then adapter. Fuck that sucks but possibly harbor freight compression tester is a cut above the rest of hose. Can vary by the schrader valves Pressure rating gaskets quickly and easily i want the tools sub-forum ; i still! I was just at harbor freight, but didnt want to have to use it then your adapter store buy... You still had to use it as a comparison tool between CYLINDERS had... Of cookies that tester is a tester made specifically for gassers, typically the gauges 0!