@jeffinohio , A warm welcome to the Community! Thank you for your message and information. If you get a lot of vibrations while wearing the Versa 2, this might cause the heart rate is not read or recognized correctly. That is why you might see inflections during the readings.
JuanFitbit Community Moderator, Fitbit. Hat dir mein Beitrag geholfen dann markier ihn als Lsung und gib mir Kudos !! Habt ihr Tipps um fitter zu werden? Lifestyle Discussion forum.
I read through as many of the previous posts as possible. We have a three year old house with no previous plumbing problems. Over the past several months we deveolped some very concerning pipe vibration/rattling/banging/humming...you name it! At times you would swear the house is coming apart. We had a water softner installed a couple of years ago and had no problems. The most recent plumbing work was when a leak developed in the yard. The water was of course turned off. The problem is fairly consistent but not related to hot or cold exclusively. One of the symptoms is a hose bib (installed with the softner) that vibrates/rattles incredibly when the second floor shower is turned on. Turning on the water at the bib will eliminate the noise after a few seconds. We paid (a lot) for one plumber to come out, my wife recreated the noise, he bypassed the softner and the noise subsided. He thought it completely went away and told us to call Sears repair. When I called them today a different plumber said "classic air in the lines." We turned off the water at the street and opened every faucet etc...turned the water back on and then turned them off starting on the second floor. The problem did not go away. The last suggestion is to start on the first floor and work up stairs. I am at wits end...I will gladly pay a plumber to fix the problem...but I guess I need to narrow in on the real problem...thanks for any suggestions.
i had this problem recently, the whole neighborhood shook when the hot side of kitchen sink was turned on. was told of the air in pipes and i drained the lines, no help. problem turned out to be a loose fauset washer ($.05) on the hot side. the washer would vibrate as the water passed by. try to isolate which valve starts the problem and replace that valve. hope this helps
The reason I ask is that the flywheel may fit both internally and externally balanced engines (half the part numbers). When the engine is internally balanced the installer leaves the flywheel unchanged. If the engine is externally balanced the installer needs to have material removed (in the form of drilled holes to a given depth) at certain points.
I contacted the place I got the flywheel and clutch pack from and asked about the possibility of needing to drill the flywheel and they said that it could possibly be if the flywheel was not torqued down properly or in the correct pattern. I do not believe that the timing belt was messed with at all before this engine was put it.
The hidden issue is that if the engine has suffered a broken timing belt, etc. and suffered bent valves what can happen is that a connecting rod (or more than one) may bend from the valve/piston impact. This can cause an engine vibration and there is no cure short of a complete, and very expensive, overhaul.
What I would do is this.
Run a compression test again.
Use a dial indicator and probe and measure piston travel in each cylinder. (Should have been done while the head was off) The travel should be the same in all cylinders. If not, a rod(s) is bent.
The issue I have heard of multiple times with these engines is if they sit lets say in a junked car things go bad valves end up getting stuck which would result in no compression to my understanding. I have never heard of this happening before the issues with this car. Does that make any sense of have yall heard of anything like that before.
The BM-10 benchtop platform outperforms a full-sized air table by a factor of 10 to 100, all within a compact design measuring just 4.6 inches in height and 12 inches in both width and depth. Remarkably, it achieves this remarkable performance without relying on air or electricity.
The vibration isolation platform is exceptionally user-friendly, delivering exceptional performance with ease. It offers a 1.5 Hz horizontal natural frequency and Minus K's signature 0.5 Hz vertical natural frequency. Only two modifications are required. For the newest generation of small SPMs that demand the best performance in a very small package, the BM-10 is ideal.
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Tubing systems that are subject to extreme vibration or shock, suchas mobile pressure systems or long tubing runs culminating at acompressor, will benefit from the use of High Pressure EquipmentCompany's Anti-Vibration Gland Assemblies. These assemblies utilizethe same reliable connection geometries as the standard HiP fittings,with the added benefit of essentially unlimited vibrational fatigue life.
A coned and threaded tube, when subjected to unusual orexcessive vibration, may fail prematurely and break at the last thread.The Anti-Vibration Gland Assembly acts to move the fulcrum ofvibration away from the threaded portion of the tube and onto thestrong, solid wall of the tubing. A wedge-like collet firmly holdsthe assembly in place, virtually eliminating premature tubing failurewhile reliably maintaining a leak-free connection between the tubeand the connection seat.
I have an 01 LE w/ 83k on it. First ill start off with the slight vibration in the steering wheel at 55 to 65mph. Im not sure when the wheels/tires were balanced last (rotated 3500k ago)... The vibration will only last for a couple seconds then go away. It will eventually come back again then go away... Any thoughts?
Next, say im going 60mph and i have to stop quickly, if i step very firmly on the brakes, it feels like the whole truck shakes. i would say most of the shaking is coming from the front. It just doesnt happen at 60mph...if i am going slower and i press harder on the brakes and it will still happen...just not as much...
For the first symptom, I would check the wheel balance like you suspect. I would look at the tires for obvious things like something stuck in the treads, a chunk of rubber missing, a flat spot, uneven wear, and cupping. I would look for signs that a weight fell off (a "shadow" on the rim where it used to be), and do a visual check to see if a rim is bent. Then I would get all 4 wheels rebalanced.
If that didn't work, I would check the front bearings for excessive play... even though you repacked them recently, they might be worn. Then I would take a look at the tie-rod ends and steering linkages.
Any of these problems may cause inconsistent symptoms. Resonances in general are capricious. Differences in road surface, load, speed, temperature, etc. can easily de-tune a resonance. Even if the vibration goes away after a few minutes under consistent conditions, maybe a bad bearing started resonating, heated up due to the extra motion, and then stopped. Don't take this last scenario seriously! it's only a far-out speculation that I just made up as an example... what I'm trying to say is, trying to find the conditions for the vibration and diagnosing it from there would be much harder than just addressing the usual suspects from the beginning.
I was having the exact same problem on my 2004 pathfinder. Bought a new set of slotted rotors of E-Bay for about 144, and they come with ceramic pads, not a bad deal. They are suppsoed to arrive today, and as soon as I get around to installing them, I will report back and let you know if that was my problem.
The row scanning mechanism of a rolling shutter camera can be used to infer high-frequency information from a low-frame-rate video. Combining the high intensity of laser speckle and high row-sampling rate of a rolling shutter, extreme detectable vibration frequency limited by rolling shutter camera imaging is experimentally demonstrated. Using a commercially available industrial camera at a frame rate of 70 fps, a vibration signal with a frequency of 14.285 kHz is extracted that corresponds to an inter-row sampling period of 35 s and a sampling frequency of 28.57 kHz. Connected component and centroid alignment algorithms are used to extract the inter-row vibration displacement. The parameters that limit the highest and lowest detectable frequencies are discussed.
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