Why did my motorcycle chain come off?
I have a Ducati Monster 695 and I was recently riding when the chain slipped off the sprocket. I believe this may have happened because of upshifting at too low a speed, or possibly just accelerating too hard. Luckily I was able to unwedge the chain, and put it back on without having to use any tools. Is the chain slipping off simply a sign that it is too loose? I know that the chain at least needs to be cleaned/waxed, but after how long does a chain need to be tightened or even replaced?
My fixed gear bike chain is skipping/slipping when lots of force is applied?
Chain, chain-rings and cogs wear together. If the chain is not replaced before it wears excessively, the sprockets will wear at an accelerated rate, until the chain skips over the teeth. The rear cog wears faster than the chain-ring. Look at the teeth on the cog. They will most likely appear very pointy. This is not how they should look. Replace the cog and the chain. If there is slipping, then you will need to replace the chain-ring also. Get a chain check tool and when the chain begins to wear, replace it before the cog wears.
How do you get rid of rust on a stainless steel chain?
Even 316L medical stainless steel will rust with long term contact with salt water or near to the sea.If you chain rust in classic athmospheric conditions it is probably a strong semi-inox steel containing lots of carbon to harden it. Or contamination.A small jewellery chain can be softly washed with an acid solution such as white vinegar or citrus. Use a soft sponge or cleaning paper.A big marine chain needs something stronger. You can use commercial rust remover chemicals containing acid./!\ Never use something with fluoridric acid. People have lost a leg or died with this. Phosphoric is way safer. There is some in Coca Cola.All these products are very strong with high rates of acid so that you need a full set of protection cloths as described on the bottle.You may also use grinding and polishing. It is a more painful process if your chain is full of rust.
Why does my bike chain keep slipping?
I thought it was a misaligned derailleur when my chain started skipping occasionally. Over several days I attempted to fine tune it by adjusting cable tension. When it did not solve the problem, my next assumption was stretched chain although a quick measurement appeared to be within tolerable range. I couldn't stand continued skipping of chain, so I took it to a local bike shop ready to swap my chain with new. But, I just explined the symptom rather than asking him to replace the chain. He found a stuck chain link that was not moving as it should, and suggested replacing the problem link. It resolved the issue.So, check to see if one of your chain link is causing the problem. You may be able to lube it and losen it without having to replace it.
What happens if you don't get a Tetanus shot after getting cut with rusty metal?
Maybe nothing.But you could get tetanus, and once you get it, even if they manage to save you, you may still wish you had died. Dying of tetanus may be the most painful way to die on the planet.Here is a painting done in 1809 of a person dying of tetanus. Painting done by his doctor. The position is called opistothonus.Why does he look like this? Your muscles ‘fire’ to contract, i.e., shorten. Then a chemical in your muscles is released to relax your muscles. What the tetanus toxin does is to prevent that chemical from being released, so your muscles fire, contract, and NEVER LET GO.Back muscles are stronger than stomach muscles, so you arch your back.If you are in really good shape, too bad, because you leg muscles can contract so strongly that they will BREAK. YOUR. THIGH. BONES, the strongest bones in your body.Imagine a ‘Charley Horse’ in every muscle in your body, 24 hours a day, for days on end.And there is almost nothing that can be done to spare you. Eventually, your diaphragm contacts, and never lets go, so you quit breathing.Getting to this blissful stage often takes 3 days. 3 days of the worst pain imaginable.(BTW, we know the chemical that’s released, and could give it to you, but then, you would stop breathing, which presents it’s own set of problems)Personally, I think the vaccine shot is the way to go, but hey, to you anti-vaxxers out there, it’s your call. Just don’t do this to your kids, please.BTW, the bacteria that causes tetanus, Clostridium tetani, is a common soil living bacteria. It’s in the ground everywhere. It’s NOT rust that causes tetanus, but a rusty nail indicates it’s been in contact with the soil for a period of time, and thus likely has C. tetani on it.C. Tetani is an anaerobic bacteria, meaning that Oxygen is poisonous to it. If you get a scratch, tetanus is very, very unlikely, because of the Oxygen. But a puncture, like from a nail, creates an oxygen-free atmosphere in the wound, just perfect for C. Tetani to grow and thrive.Tetanus can be ‘treated’ today, but 2/3 of patients still die, and those that survive typically spend 6–8 weeks in the hospital, mostly on a ventilator, with about 3–4 weeks in a induced coma, followed by 4–6 months in rehab. Personally, I think getting the vaccine is easier.BTW, there is a variation of this disease called infantile tetanus. New borns can get it from, for example, non-sterile scissors used to cut their umbilical cord. I will spare you the pictures.
Is it bad for a street bike to get wet in the rain?
Motorcycles are made to ride in the rain. They dry out, just like cars.Motorcycles have more parts that are subject to wear and tear by the sun and weather than cars, but they are designed to handle that.I do think that a garaged motorcycle is a plus when I’m looking for a motorcycle, but I look at the overall condition of the motorcycle compared to the price I can get the motorcycle I’m looking to buy. If the condition is good, I don’t care where they kept the bike or whether it’s been ridden in the rain or not.Caveat: I ride all the time, anywhere. The people I ride with stop long enough to put on their rain gear before heading through the rain line. I keep bikes for a long time. My current bike has 72,000 miles on it and I’m heading out this weekend for a 7500 mile tour of the country. I’m not stopping for a bit of rain, or even for a longer bit of rain as long as I think I can continue to ride safely. The bike can take it. Rain washes the bugs off everything so I don’t have to. By that token, when I finally sell this bike, with more than 100,000 miles on it, it’s not going to matter if it was rained on or not. It’s not going to be worth much anyway.Guys who polish chrome more than they ride have a point to the not getting rained on part. Getting rain spots off all that chrome is a pain in the axx.If you are buying a used bike, finding one that has been garaged and never ridden in the rain (a garage queen) may be a good start to finding a new bike for yourself. It may have low miles and be in like showroom condition. If that’s what you want and you are willing to pay the seller’s premium for it, then start looking there.
Knights during the crusades?
Haii ! :) does anyone know anything about knights during the crusades? i really need information on there *living conditions, what *weapons and Armour they used, what the *Battles they fought were like, *problems with weapons, and their * belief in the importance to the crusade's success or if anyone has good websites ??? thankyou xoxox
A heavy uniform chain lies on a horizontal table top. If coefficient of friction between the chain and the table surface is 0.25, then what is the maximum fraction of length of the chain, that can hang over one edge of the table?
This is fairly an easy question, if you understand the concept of Mass Gradient, which in itself is natural and intuitive. I will show the working of the solution for the problem in following steps:Step 1: Assume total length of the chain to be = L. The length of the portion hanging = x. The remaining part = L-xStep 2: Since the chain is uniform, its mass gradient is constant throughout its length. Its mass gradient = M/L.Step 3: The gravitational force on the hanging part = mg = (M/L)xg. This is the force acting on the part of the chain resting on the table top. Draw its free-body diagram, showing all the forces acting on it, including Normal force and Frictional force.Step 4: Since the gravitational force and normal force cancel out each other, the body stays in equilibrium along Y-axis. All you must check for is the condition for horizontal equilbrium. For this, the force acting on resting part due to hanging part, and the frictional force must balance each other. This is the major part of the problem done, with just some analytical thinking.Step 5: Now comes the working part,(M/L)xg = k (M/L)(L-x)gi.e., Force due to hanging part = Frictional forceNow, value of frictional constant k is given to be 0.25, which would give us-x = (k/k+1)L→ x = L/5Therefore, one-fifth of the chain would be hanging from the table.Now, I would like to share some views on the critical concepts that we used in the above problem:→ Whenever you have a problem on chains, rods,etc., i.e., objects having their linear mass densities as a constant, always use the concept of Mass Gradient. It would make the problem look much easier.→ Be careful when you draw free body diagrams of the extended objects. Always show that gravitational force acts on the Centre of Mass of the body and that frictional force acts along the surfaces in contact. This would help you much when you are also considering the Torques due to different forces.I sincerely hope that the above answer would elucidate the concept for you. If you have any other queries regarding the above example, you are always welcome to ask!
Do I need a tetanus shot? I got a shallow cut from an old metal fence and it's been six years since my last booster.
It’s not the metal fence that causes tetanus, it’s a bacteria known as Clostridium tetanii, whose spores can be found in soil/feces, and on objects found in or contaminated by that soil. They then can potentially be introduced into deep wounds and lead to disease.Physicians have been recommending that tetanus booster frequency be increased, at least for certain professions, to every five years (instead of every 10).It doesn’t sound like it based on your description “shallow cut”, but perhaps it’s best for you to consult your doctor to see if the depth of your wound might be deep enough to be of concern (wounds that cannot be thouroughly washed out are the worrisome ones). You may be up for a booster anyway, and if the wound does look like it’s getting infected, your doctor can prescribe an antibiotic.
Can not changing your oil mess up the timing belt?
No. If your timing belt is off, your car won't start. If your timing belt has jumped, then your timing could be advanced, or retarded.