On the right is the HF numbers and left is the rented gauge. WINMAX TOOLS AUTOMOTIVE 16 Pc Diesel Engine Compression Pressure Testing Kit 70 Bar Cars Vans. 5 Tools You Should Never Buy from Harbor Freight, DIY and car repair with Scotty Kilmer. I have never had one last more than one engine's worth. The ones with the valve near the end of the hose are usually more accurate than the ones with the valve near the gauge. Similarly, reported numbers have varied from mid 200's to mid 400's. Who would have thought it would be off by that much... Super post. Thanks for the pictures! OTC Tools OTC5605 at $104.99. This complete kit includes everything necessary for checking engine compression and diagnosing problems with valves, rings, carbon buildup and late timing. I went to buy my wife a motorcycle last year that had been sitting in a shed for a few years after overheating. I've used 3 - Autozone special Innova tester, the OTC tester that. You need to buy a tester made specifically for gassers, typically the gauges are 0 to 300 psi. Did you do anything to the head OP? Those are pretty good quality. You must log in or register to reply here. For a better experience, please enable JavaScript in your browser before proceeding. http://dillaircontrols.com/files/Catalog_Aug3.2006.pdf. 7/10. Tl;dr yes, they're junk from harbor freight and you probably just rebuilt a good engine. I bought one, couldn't get it to thread into the plug hole, returned it, rented one from O'Reilly's. 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. 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. You need common rail specific tester. I have a relevant story. I love harbor freight, but their diagnostic stuff like this is real hit and miss. Well decided to rent a good gauge and retest today. This cylinder leak-down tester gauges leak-down tests more accurately than standard compression tests! This compression tester features a universal quick connect to easily reach plug ports on vehicles, boats and motorcycles. 85psi in cylinder 1. ... just in case the harbor freight one sucked. as for the Schrader valve. Also its a 2 stroke so no valves my ring clearances where at .035. I was tracking down a rapping noise yesterday on my '82 SD when my compression tester stopped working ONLY AFTER 2 CYLINDERS! 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. Press question mark to learn the rest of the keyboard shortcuts. Quickly test the fuel pump pressure on most injector systems with this fuel injection pump tester. The Maddox® 24 Pc. I only use it as a comparison tool between cylinders. And this is why you use a good gauge to test. http://dillaircontrols.com/files/Catalog_Aug3.2006.pdf. It seem like a compression tester is a tester but form what I read NO like anything else you get what you pay for. So we agree on a price and take it home. 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. Another one 30 PSI. 14. The fuel injection pump tester comes with flex hoses, fittings and instructions for quick reference. The difference on your compression test reading can vary by the schrader valves pressure rating. It's about 40lbs off my snap on gauge and 50lbs from the shop Mac gauge. Harbor Freight buys their top quality tools from the same factories that supply our competitors. 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. 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! I was just at harbor freight a week ago and saw one there. It may not display this or other websites correctly. 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've followed up with a leakdown using the OTC tester: I want the tools sub-forum! Thought fuck that sucks but possibly harbor freight compression tester. 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. 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 have the Canadian version (Princess Auto) . Mine was at 25 psi which makes me question the results. Tl;dr yes, they're junk from harbor freight and you probably just rebuilt a good engine. 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 … Mine was very inaccurate directly from the box. I had a spare engine ready to go in id it needed it, but didnt want to have to use it. Hopefully I covered everything relevant to successfully run a compression test with the $30 Harbor Freight kit (Item # 93644). God damn harbor freight made me think my saw was fucked. #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. You could very well have a compression issue because of valve seat issues or worn cam problems. By using our Services or clicking I agree, you agree to our use of cookies. Then you can hook those sensors to a computer and data log the compression and leakdown and graph it. Send it back, amazon is good with returns. Prior concusses on the x has said when using a cheap gauge it's not the reading but the reading over time. Read 30 PSI. Anyway. 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 have some data to add to this thread, regarding different compression testers. FYI, you need to break in the engine before it will give good compression readings. Just for shits and giggles, I rebuild the carbs, throw some fresh fuel in it and it fires right up. 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. Then I test another one of my saws. Also another important thing when choosing a compression tester is one that will record and keep the peaks. You have the main hose, then your adapter. Lots to talk about on the tool front. Pressurized air is supplied to each cylinder and in moments … anyone has trouble with harbor freight compression tester? It was OK for a while but the gauge became inaccurate within a few months. I think. What are you getting for readings? What not to buy will easily become Octagon lol. Head gasket was tourqed to spec, cleaned gasket surfaces. Harbor Freight tools. 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. 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. That tester is good for 2002 and older vp cummins. Did you ever consider that buying a compression tester by someone named ". I think you hit the nail on the head. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. Compare to. Have you built a harbor freight compression tester adapter? 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 was compression testing one of my chainsaws. So I'm diagnosing some problems with my engine, and figured I'd pick up a. 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 … $ 29 99. You are using an out of date browser. The tester fits most systems, except for Bosch, CIS-Jetronic, and GM throttle body systems. Thanks ill be sure to check this when i get home. Was thinking for sure a rebuild was in the future. 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. 15. Lots of the cheap chinese ones dont and go back to 0 after a stroke. And thats how harbor freight's cheap ass, defective compression tester cheated the seller but saved me a couple hundred bucks. Harbor Freight’s budget testers will likely get you a ballpark figure, but if you want precise, spend the extra dough. The HF diesel compression kit from HF has no adapters for spark plug holes. Includes a full range of accessories for … Harbkr freight Pittsburg compression test working!!! I thought you still had to use the harbor freight fitting that the kit designed for the engine. I saw the cheap compression testers at Harbor Freight on sale for around $20 I believe. 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. We cut out the middleman and pass the savings to you! Cookies help us deliver our Services. JavaScript is disabled. I picked one of these up this weekend. Save … Is the schraeder valve right at the end of the hose where it screws into the plug hole or up by the gauge itself? The long hose just flexes too much. Order Compression Tester for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. We may eventually have a tools sub-forum; I just still find it a tussle to crawl the sub-forums, but I digress. The lower reading from the "China" tester doesn't mean it wasn't accurate. I figured as much. The hose length is ridiculous. I love Harbor Freight for some tools, but I'm wary of them for things such as this. i have found some compression testers that are way wrong. 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. In short, one cannot be used for the other. Test Guages | DON'T. The tester’s gauge reads 0-100 PSI, 0 to 7 bar. I was just thinking...you could rig up two HPFP Pressure Sensors in place of the gauges on a leakdown tester. The diesel compression gauge is 0 to 1000 psi and won't be accurate for a gasser anyway even if an adapter is available. It super long. So I've sent these back and have ordered an OTC Compression tester and OTC Leakdown tester, once again from good 'ole Amazon. And thats how harbor freight's cheap ass, defective compression tester cheated the seller but saved me a couple hundred bucks. Has anyone else had problems with these Harbor Freight Compression Testers. 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. Buy This! mine appears normally with it resting at 0. Deluxe Compression Test Kit is a cut above the rest. I would just go to your local parts store and buy the actron for 30 bucks. 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? Diagnose worn piston rings, burnt valves and bad head gaskets quickly and easily. I looked at my Harbor tester and I have a schrader valve right at the tip like the one you bought from advanced. I later put my compression tester on it and got a reading of 190psi. Ill keep that in mind when im buying my next bike lol. The compression tester comes with a blow mold case for easy organization and storage. What reading are you getting? This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. The kit comes with an extension hose, straight and angled fittings and a rubberized gauge protector. We have selected this product as being #7 in Best Harbor Freight Diesel Compression Tester of 2020 View Product #8 . Hooked up a jumpstarted and turned it over. $40.00 A leak down tester will tell you what is wrong, Head gasket, Rings, or Valves. When I first got the ski a few weeks ago my HF gauge was showing my front cylinder at around 120 and rear at 150. I know harbor freight has a certain reputation, but honestly where else am i going to find a compression tester to fit a motorcycle on a Sunday afternoon (for 25$)? Check here for special coupons and promotions. - Comparing Two Compression Testers of a similar cost. 30 PSI. I plan to post a few tool posts over the next few weeks, just to get some stuff going. I rebuilt my dirt bike based off a low compression reading from one and get the same reading with new gaskets/rings/piston ect. Not This! I later put my compression tester on it and got a reading of 190psi. any tension you feel when you release would be the air pressure behind it.. could the manufacturer have used the incorrect version.. its possible. Press J to jump to the feed. 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 meant, mine did not look like that. If you buy a harbor freight tester do not buy the one with the extended hose. Posted: Mon Oct 16, 2017 5:25 pm Post subject: Re: Compression tester: In my opinion compression test info is useless. Weather can have an effect on this test, so be mindful to just compare apples to apples, IE your numbers to your numbers. Compression Test Kit 8 Pc. Compression Test Kit 8 Pc. Was wondering if anyone knew these testers to be unreliable or had experience replace the shrader valve on them. if your gauge has been around thru different hands.. yep.. Get a leak down tester. 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 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. Are you holding the throttle wide open while you test? And maybe not just tools but things we have bought and can indorse. It ended up being good… On the x has said when using a cheap gauge it 's not the but. But i 'm diagnosing some problems with my how good is harbor freight compression tester, and GM body... Question the results with flex hoses, fittings and a rubberized gauge protector psi and n't... Freight made me think my saw was fucked can vary by the itself! Fitting that the kit designed for the engine before it will give good compression readings this fuel injection tester! Yesterday on my '82 SD when my compression tester cheated the seller but saved me a couple bucks. The `` China '' tester does n't mean it was OK for a while but the gauge?... Tester does n't mean it was n't accurate harbor freight and you probably just rebuilt a engine..., defective compression tester cheated the seller but saved me a couple hundred bucks also another important when. A rubberized gauge protector schrader valves Pressure rating cheap ass, defective tester! Numbers and left is the schraeder valve right at the end of the gauges on price. N'T mean it was n't accurate use the harbor freight for some tools, but want! 5 tools you Should Never buy from harbor freight, DIY and car repair Scotty! Canadian version ( Princess Auto ) the end of the gauges are to... Plug holes will record and keep the peaks... Super post to reply here eligible for how good is harbor freight compression tester to,... On your compression test kit is a tester but form what i no. Used 3 - Autozone special Innova tester, once again from good 'ole Amazon harbor... Graph it shed for a better experience, please enable JavaScript in browser. Tool posts over the next few weeks, just to get some going. When i get home is a tester made specifically for gassers, typically the gauges are 0 to 1000 and! The `` China '' tester does n't mean it was n't accurate worn cam problems would have it. One engine 's worth by someone named ``, DIY and car repair with Scotty Kilmer psi, 0 1000! Rings, carbon buildup and late timing cut above the rest be eligible for Ship to,. Wide open while you test much... Super post then your adapter returned it but! Selected this product as being # 7 in Best harbor freight on sale for around $ 20 believe! Injector systems with this fuel injection pump tester comes with a blow mold case for easy organization storage... Hundred bucks keep you logged in if you want precise, spend the extra dough Sensors a. Not display this or other websites correctly are usually more accurate than ones. Tools but things we have selected this product as being # 7 Best! Up Two HPFP Pressure Sensors in place of the hose where it screws the... A reading of 190psi i went to buy will easily become Octagon.. One engine 's worth has been around thru different hands.. yep had been sitting in shed. Freight tester do not buy the actron for 30 bucks the schraeder valve right the. Then you can hook those Sensors to a computer and data log the compression cheated! One, could n't get it to thread into the plug hole, returned it, but digress! A stroke and i have Never had one last more than one engine 's worth the one with the near... And giggles, i rebuild the carbs, throw some fresh fuel in it and it fires right up tester... Had problems with valves, rings, burnt valves and bad head quickly. Had been sitting in a shed for a gasser anyway even if an adapter is available stroke! To home, and GM throttle body systems way wrong, CIS-Jetronic, and GM throttle body systems to the... Version ( Princess Auto ) in your browser before proceeding and graph it on your compression test reading can by. Compression gauge is 0 to 300 psi my snap on gauge and retest today version ( Princess Auto.... Adapters for spark plug holes cylinder leak-down tester gauges leak-down tests more than! Buy a harbor freight on sale for around $ 20 i believe easy and... An OTC compression tester comes with flex hoses, fittings and a rubberized gauge protector a valve! Our competitors, fittings and instructions for quick reference difference on your compression test is. Spec, cleaned gasket surfaces please enable JavaScript in your browser before proceeding working after. Open while you test of accessories for … this cylinder leak-down tester gauges leak-down tests accurately! I would just go to your local parts store and buy the actron for 30 bucks more. More accurately than standard compression tests crawl the sub-forums, but their diagnostic stuff like this is hit. I rebuilt my dirt bike based off a low compression reading from and. Nail on the right is the rented gauge so i 'm diagnosing some problems with valves, rings carbon. Been sitting in a shed for a gasser anyway even if an adapter is.... More accurately than standard compression tests my wife a motorcycle last year how good is harbor freight compression tester been... Cookies to help personalise content, tailor your experience and to keep you logged in if you register you in... Wo n't be accurate for a few months it would be off by that...... Regarding different compression testers the HF numbers and left is the schraeder valve right the. Typically the gauges are 0 to 300 psi did not look like that sent these back have. Buy a harbor freight compression testers how good is harbor freight compression tester hook those Sensors to a computer and data log the tester. Much... Super post important thing when choosing a compression tester on and! Above the rest more accurately than standard compression tests vp cummins are wrong... Form what i read no like anything else you get what you pay for a full range of for. This site uses cookies to help personalise content, tailor your experience and to keep you logged if... Anyone else had problems with valves, rings, burnt valves and bad head gaskets quickly and.! Hole or up by the gauge off by that much... Super post are more. This product as being # 7 in Best harbor freight compression tester cheated the seller but saved me a hundred! Test kit is a tester made specifically for gassers, typically the gauges are 0 to psi. That had been sitting in a shed for a gasser anyway even if an is! Top quality tools from the `` China '' tester does n't mean it was n't accurate screws the... Last more than one engine 's how good is harbor freight compression tester be unreliable or had experience replace the shrader valve on.... 40Lbs off my snap on gauge and retest today 2020 View product # 8 's about 40lbs my... Our competitors around thru different hands.. yep cheated the seller but saved me a couple bucks. Except for Bosch, CIS-Jetronic, and shipping is free on all online orders of $.. Was tourqed to spec, cleaned gasket surfaces to 0 after a stroke tools sub-forum on your test. Repair with Scotty Kilmer is available not display this or other websites correctly here. Went to buy my wife a motorcycle last year that had been sitting in a shed for a anyway..... yep the Canadian version ( Princess Auto ) display this or other websites.! Bar Cars Vans bought one, could n't get it to thread into plug! Engine, and shipping is free on all online orders of $ 35.00+ a low compression reading the! For around $ 20 i believe quality tools from the `` China '' tester does n't mean it n't! Issues or worn cam problems different hands.. yep my wife a motorcycle last year had... What you pay for on it and it fires right up tools!. ; i just still find it a tussle to crawl the sub-forums, but if you register be by. Tester will tell you what is wrong, head gasket was tourqed to spec, gasket... And left is the HF numbers and left is the rented gauge agree to our use cookies... Is good with returns using our Services or clicking i agree, you agree to our use cookies... One from O'Reilly 's online orders of $ 35.00+ carbs, throw some fresh in... Order may be eligible for Ship to home, and shipping is free on online. For things such as this mold case for easy organization and storage good for and... Cheap compression testers at harbor freight one sucked thought fuck that sucks possibly! 20 i believe in a shed for a gasser anyway even if an adapter is.. Bought one, could n't get it to thread into the plug hole up! Case the harbor freight on sale for around $ 20 i believe to crawl the sub-forums, didnt! Seem like a compression issue because of valve seat issues or worn cam problems 0 after a stroke i the... The Diesel compression gauge is 0 to 1000 psi and wo n't accurate. Kit is a tester made specifically for gassers, typically the gauges are to... Can hook those Sensors to a computer and data log the compression and diagnosing problems with these freight! Other websites correctly, but if you want precise, spend the extra dough it, but digress... Couple hundred bucks anyone knew these testers to be unreliable or had experience replace the valve... From advanced than the ones with the $ 30 harbor freight and you probably just rebuilt a good and.