harley compression test numbers|Compression test and appropriate readings : export Hey I need some help finding the correct PSI reading when doing a compression test on a 2012 wide glide with a stock unmodified 103 engine. Anybody know what it is? All the . 11 de jan. de 2024 · 中集车辆致力于成为值得信赖的半挂车及专用车行业世界级领先企业. 企业精神 ：. 自强不息、追求卓越. 核心价值观 ：. 诚信正直、成就客户、开拓创新、持续改善、合作共赢、结果导向. 使命 ：. 为全球道路运输提供可靠、高效的车辆装备，并提供及时、 .
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I did a compression reading on both cylinders while the engine was cold and both came up to 180 psi. Can you tell by the reading if it is a 88 ci stock motor or if it is a 95 ci motor? I am checking the manual now to see what the 88 is supposed to read.
Hey I need some help finding the correct PSI reading when doing a compression .ejk's ccp number assumes sea level. If you assume 420', which is roughly Augusta's .
Hey I need some help finding the correct PSI reading when doing a compression test on a 2012 wide glide with a stock unmodified 103 engine. Anybody know what it is? All the .
One thing I noticed is that both my bikes (both 88s) made max compression on the gauge at around what appeared to be three revolutions or so. The reading in the 140's is normal with CVO 253 cams and stock . To perform a compression check on a Harley Davidson, you'll need a compression tester with a PSI gauge and a quick connect hose as essential tools. The . Hey I need some help finding the correct PSI reading when doing a compression test on a 2012 wide glide with a stock unmodified 103 engine. Anybody know what it is? All the .We were comparing compression gauge readings on 45s and I have not seen any published data to know what is good and what is bad. My WLA with #5 aluminum heads reads 60 .
ejk's ccp number assumes sea level. If you assume 420', which is roughly Augusta's elevation, if you were actually at 10.6, your ccp would be 193.5 psi. When you . Popping back is usually an indication of a lean condition. Possibility you need to rejet the carb for your bike. As far as setting the PROPER mixture, read through the self help .
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compression test
WL Compression Readings/Power
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HAMMER PERFORMANCE - High Performance for your Harley Twin Cam, Evo Big Twin, Sportster or Buell! 208-696-1250. STATIC AND CORRECTED COMPRESSION RATIO. FREE Download! A tech article is to follow, but for .Those Dyno Guys. Building 2, 7200 73rd Street North, Pinellas Park, FL, 33781, United States 763-263-3966 [email protected] increased compression and hotter cams, the 750cc WR shared a large number of parts with the mass-produced military WL series. The WR racer saw considerable success, competing against rival Indians on dirt track speedways .
I just did a compression test then I read you have to have the throttle wide open when doing it which I did not. I got a reading of 120 psi in both cylinders but is it inaccurate if the throttle was closed? . Harley Davidson Community . G. goofysniper Member. Apr 11, 2009 #3 Does that sound like a lean problem to you though? Id rather go a .Always, always, always run the Compression Test FIRST. OK, you have a cylinder that reads low. Is it valves or rings, leaking that compression? A quick, down and dirty test is this. . Just to make things interesting, a number of the newer, big single, dirt bikes have an automatic, spring loaded, Compression Release located on the Exhaust . There's formulas to figure compression ratio based on variables such as piston type , combustion chamber volume , valve timing and overlap . Plugging the variable numbers into the formula will get the compression ratio , such as 10:1 . The cylinder compression test will give a reading in PSI on the gauge , such as 135 PSI .
160 is about right for a stock TC88 but 120, not so much. Something going on in that cylnder. Squirt some motor oil in that hole, run the piston through a couple of cycles and re-test. If compression gets better, rings are going; time for a leak down test. BTW, I would seriously consider replacing the Clymer manual with the Harley manual. The compression numbers are also higher than I thought they would be (thought they would be around 205). The motor has a TMAN CVO Street Performer Kit with TR-555 cams installed. The build sheet show a 10.7:1 static. I was planning to .
1952 FL Panhead. What should the compression be? I have checked the compression in both cylinders with throttle open and then again with 3 squirts of oil in each cylinder. First readings in both about 65#. After oil, about 85#. What should the compression be????? Any other help would be appreciated. Gumby
A compression test in the rear cylinder (60 pounds) followed by an air compressor test using a fitting in the spark plug hole revealed massive air coming out the carburetor when both the intake and exhaust valves were closed (a feeler gauge was passed between the tappet and the valve to make sure they were closed). He swears that the 9.300 on the odometer is correct. I got it home tonight and did a compression test. Found 150# one the rear and 135# on the front. . V-Twin Harley Davidson forum. Discussion on V-Twin Harley Davidson motorcycles including Dyna, Electra Glide, Softail, Sportster, and more. Show Less . Understanding the Function of Automatic Compression Release in Harley Engines. The ACR system in Harley engines plays a vital role in maintaining the longevity and performance of your bike. During the start-up, particularly in cold conditions, the high-compression engines of Harley Davidson bikes can experience a tremendous amount of stress.
Over the last 15 years I have used many different combinations of components and port designs in the quest for the best flow numbers while keeping port velocity up. In those years I have found that the majority of the motorcycles that were used on the street did not benefit from heads with the larger valves or what I thought was my best port . Milwaukee Eight (M8) - compression test on m8 - Had dealer do a compression test and a leak down test on a 2017 m8. Compression was 125 in each cyl and leak down 5%. . Harley Davidson Forums. Harley Davidson Motorcycles; HD Engines; Milwaukee Eight (M8) . Something is not right with those numbers. Reply Like #3 08-04-2017 | 09:02 PM . Having only just bought this bike I was wondering if someone can tell me what the compression should be on a 1340 Evo. I have a. HDTIMELINE. . I did a test on the bike and it read 190 PSI for the front cylinder and 192 PSI for the rear. . Would also like to know if you can trace the year of a 5 speed tranny by its number. Number is .Since no compression builds until after the intake valve closes, it's the corrected compression ratio that gives the best indication of how pump gas friendly your motor will be. Premium pump gas in the U.S. will generally tolerate corrected .
So after some reading about my smoke issues on my flathead, I decided to run a compression test. My numbers are as follows: 1- 90 2- 90 3- 80 4- 90 5- 75 6- 80 7- 90 8- 90 I understand that 3,5,6 compression is low. For the numbers that Ive read in posts, they all seem a bit low, but in range of each other.
But even a basic compression test, without going into a full on leakdown, can give you a good idea. For example, if the first few strokes are low and it builds up to normal pressure by the 7th stroke, that's piston rings. If you add oil to the cylinder and it improves the compression test, that's also indicative of piston ring problems.Find Automatic Compression Release 28861-07A at Harley-Davidson.com. Free shipping on orders + and free returns. . Test Ride; Dealer Locator; Track Order; Sign Out; Aria locale Select locale . Part Number: 28861-07A Qty Only in .
For the 1200, it should be between 200 to 230 PSI. (These numbers are for the rubber mounted engines. Older models may have a different specification.) If your compression numbers appear low, try squirting oil into the spark plug hole. Repeat the test. If the compression rises significantly, the piston rings or bores are worn. Testing the compression on a Harley Twin Cam
My friend has a 01 road king and he would like to do a leak down test to check for blow by. . The second gage will show something less and the number will reflect the percentage (because you set the first gage pressure at 100 psi). So if the second gage reads say. 95 psi, this will tell you that the motor has a 5% leak rate (or 95 % .
To perform a compression test on your Harley Davidson and assess cylinder health, follow these steps: Spark Plug Removal: Begin by warming up the bike and then removing the spark plugs from each cylinder. Compression Tester Setup: Install a compression tester with a PSI gauge into one spark plug hole. Make sure it's securely in place for . IMO that is the best way to test the whole system. Remove plugs and open throttle blade all the way. Perform compression check. Note numbers. Pull CR fuse and repeat test. Numbers should be different by about 30-40 psi. The compression gauge part number is HD-33223-1. For reference, all twin cam motors require a 12 mm adapter with the compression gauge. Use the step-by-step compression test procedures to establish compression readings. Then use the diagnoses chart to interpret compression test results. Compression Test Procedures
Harley Davidson Motorcycles. Sportster Models . Compression numbers ? Thread starter Maustarman . I'm trying to figure out that the compression *PSI numbers* should be for a 1988 hugger 883 with a 1200 upgrade. Thank you in advance . .In Example 1, cylinder #1 has a snap test reading that is much lower than the other cylinders. If a snap reading is low (much less than 80% cranking compression), look for air intake problems such as severe carbon deposits on intake valves, worn cam lobe,worn valve guides and springs, rocker or push rod problems, or "shutter valve" miss-positioned in the runners of a variable .
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Twin can 88 compression test, whats acceptable
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harley compression test numbers|Compression test and appropriate readings