cb360 compression test|1974 CB360 Compression difference : Chinese You don't need a compression test, you need to check everything and sync carbs. Check for air leaks and damaged diaphragms as well. If you do a compression test, . 451 likes, 20 comments - larissaduqueofc2 on October 30, 2023: "Siga @larissaduqueofc minha conta principal 勺"
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You don't need a compression test, you need to check everything and sync carbs. Check for air leaks and damaged diaphragms as well. If you do a compression test, .They say 171psi. I can get nothing greater than 90psi on this harbor freight gauge. .I did a compression test last night. Did you pull both plugs and hold the throttle wide . They say 171psi. I can get nothing greater than 90psi on this harbor freight gauge. That's with new oversized pistons new rings, new valves, new valve guides, valve job, .
#1. Hi guys, Got a new CB360. Did a compression test to see what kind of shape the engine is in. Results: 110psi left cyl. 100psi right cyl. Note: these readings were with a cold . I did a compression test last night. Did you pull both plugs and hold the throttle wide open? Did you use electric start or kick it over? Did you add a little oil and see if anything .
I did a quick compression test on the motor and both cylinders were showing about 75 psi. I poured some oil into each cylinder through spark plug hole and let it sit over .
You can't always determine visually if everything is sealing right on the compression stroke. The head and valves can be pressure tested to see if they are at fault. i have timed the bike using a test light and the marks on the generator. Should i use an inductive timing light to time the bike before syncing the carbs? is there a good write up . 110 PSI is low compression for a CB360. I'd estimate a fresh motor would be around 150-160 and a good condition used motor around 140psi. I've pulled apart many old . I have a 74' CB360 and was trying to adjust the points this last weekend and ran into a head scratching situation. The current state is the bike runs, just not well. So, I turning .
Go buy/rent/borrow a compression tester (12mm I believe). Remove the opposing plug, open the throttle all the way and get a reading. If it's low, add a teaspoon of oil through the spark .A compression test is simple to learn and only requires a few basic tools. From a mechanical perspective, you will need to know how to properly remove the spark plugs on the vehicle or equipment you are testing and properly disable . The cold test doesn't give you enough information to make that determination. What you need to do, as Joe says, is a warm compression test, followed by a leak-down test. That will give you much more info to work with. A leak-down test may reveal many things, bad guides, rings, weak cylinders etc. FR BTW, don't EVEN ask me how I know.Honda produced the CB360 for the model years 1974 and 1975 with little or no change. An air-cooled, OHC, twin-cylinder 357-cc engine with two valves per cylinder powered the CB360. The engine's compression ratio was 9.3-to-1. It generated 34 horsepower at 9,000 rpm and had a reported top speed of 102.5 mph.
Did a cold first compression test today. same as another poster here I only got about 50 psi on each cylinder. being a new build with 1mm over size, new rings etc and not run in I was a bit disappointed. squirted a very small amount of light machine oil ( Singer sewing machine oil ) in each cylinder and kicked again.
I'll have to track down a compression test kit at some point, the oil covered spark plugs suggest poor compression as well. Yea it hit 13v, probably would have gone higher if I continued to rev up the engine. By professionally calibrated, I'm referring to the mechanic that works mostly on ATV's and dirtbikes (2nd Chance Cycles, walkertown, nc). Then to check, take the next WHOLE size up and try to stick it under. It might just barely go in a 1/16" because both surfaces are round. IF it goes on through its too loose, so for the intake its .002 so the test is .003 the exhaust is .003 so the test is .004. It's a feeling you will figure out it just takes practice.Keep in mind, those are hot compression numbers. (The tests should always be done hot, wide open throttle, no choke plates, if CV carb lift the slide.) A cold test will show lower than a hot test so if you can't run the motor it might not be the end of the world compression wise. Hi I just need some input on what a 'good' compression test should show on an all stock 73'. Forum Home > The Garage > AMC V8 Engine Repair and Modifications New Posts FAQ Register Login. Click for TheAMCForum Rules / Click for PDF version of Forum Rules . Your donations help keep this valuable resource free and growing. .
A compression test is always a good way to determine if the symptoms you’re experiencing are related to internal engine damage. However, if compression is found to be low inside the engine, significant repairs or in some cases, complete engine replacement will be required. The key is to have a professional mechanic perform a compression test . On my CB360 twin only the left pipe gets hot under idle. I have the rev the engine above 3000 rpm for the right side to kick in and get hot. . Just checked compression: 150 on the right side (the one that does not get hot under idle) 100 on the left side Still no clue on what it could be. . will test tomorrow. I hope this helps or might . a compression test tels you nothing about the condition of the oil ring neither when i got got my 350 it smoked like a bastard on the one side,it was a brand new bore and the comp was excellent whoever put it together broke the oli rang Now the bike wont start. I did another compression test and only got 120 & 128psi. when I poured oil into the plug holes, compression jumped back to the 150 psi range. I tried to check the valve seats with oil and compressed air blown into the ports. I got a couple very small bubbles when I blew about 60psi into ports.
I did a compression test today so I'll know before opening the engine. I'll deck cyl and head that will crank up the compression a little. Interesting to see how much more pressure it will make. - Acceptable difference of pressure between cylinders? cold engine, last started about 3 . After checking the points, compression, valves, carb (twice), electrical, it was the carb. I didn't checking the first time I pulled the carb but the two were WAY out of sync. So much so that idling at 2000 the left side butterfly wasn't even open while the right was open enough to get the bike the idle at 2000.
In a compression test, the modulus of elasticity can be calculated from the initial, linear portion of the stress-strain curve where the material behaves elastically. Ductility: Ductility is a measure of a material’s ability to deform without .
Compression Ratio: 9.3:1: Induction: 2x carburetors: Ignition : CDI: Starting : Max Power : 34 hp / 24.8 kW @ 9000 rpm: . CB 360 is less nervous than its predecessor. In 1977, the machine disappears from the catalog 2 years after .
Honda CB360 VFW, Post 2391. . Then you can do a leak-down test (for the valves) and a compression test (for the rings) again if you really want to. The valve lash settings should be checked first, however, as a tight valve could be throwing off .
1975 CB360 from Slipstream Creations. Introduced in 1974 to succeed the highly successful CB350 twin (actually 325cc), the Honda CB360 boasted a number of upgrades over its predecessor: more displacement (356cc), along with a broader torque curve, six-speed transmission, slipper-type cam chain tensioner, trochoidal oil pump, and more. . Doing a compression test, is a good way to measure the condition of, the rings, cylinders, and valves. So, if your engine is running rough or is lacking power, consider doing a compression test. Also, it is important to perform a compression test every time a tune-up is done, as part of preventative maintenance.
1974 CB360 Project. Save Share . Ran a compression test. Although compression numbers were not super awesome. And this morning checked that the pilot jet was right. After I put in the 20 pilot jet and 145 main. Both air/fuel screws are set at one and a forth turns out. My clip is one down form the top And is idling at 1200 to 1300 RPM.
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Run a compression test. To me, it just looks like excessive blow-by. Shouldn't be points related at all, but it doesn't hurt to clean them anyways. If the bike hasn't run very long, I'd just assume that it's stuck rings. Change the oil and add a tad bit of seafoam to the oil, and ride it. Compression test is a "dry" cylinder, Throttles open wide. The oil would raise the compression for 2 reasons. 1. The rings and valves seal pbetter, and 2. the oil reduces the volume of the compression area in the cylinder. So yes, the oil .Complete performance review and accelerations chart for Honda CB360(T) (G) in 1975, the model with standard body and 356.8 cm3 / 21.8 cui, 22.8 kW / 31 PS / 31 hp engine. According to ProfessCars™ estimation this Honda is capable of accelerating from 0 to 60 mph in 7.7 sec, from 0 to 100 km/h in 8.3 sec and 1/4 mile in 16.3 sec.. NOTE 2: If you have a CV carb, late model TW or any other bike with a CV carb and you do not remove the carburetor from the intake boot for the compression test the slide should be held lifted open so as not to impede intake air into the cylinder. Impeded intake air equals a lower inaccurate compression measurement as does a clogged exhaust.
cb360 compression
Recently bought a CB450 with an intention of rebuilding it. Just did a cold engine compression test. My first time doing a compression test, just following instruction that came with the tester kit. With throttle open, kicked it (kick starter) 4 - 5 times and it reads about 75 psi on both sides. Is this normal? or am I doing the test right? Running a compression test is a great idea. So is running a leakdown test. So is reading the Motorcycle Repair Course located at dansmc.com.Cannot be beat for the older bikes. Start with topics 11,12,13 and it covers a lot about getting an old bike running. Reading the entire manual will improve your understanding immensely, FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428) - 360 compression test - I just ran a compression test on my 360. Just bought the truck, engine is original as far as I know. The passenger side was 150, 150, 150, and 135 psi. The driver side was 120, 95, 90, and 45 psi. Do you think there's a good chance.
What is considered a good compression reading on a CB360?
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cb360 compression test|1974 CB360 Compression difference