The valve train makes a lot of noise. A sudden change in valve train noise is sign that your bike should get an adjustment. In addition to increased wear, loose valves will have increased clearance which can cause compression issues. An engine that looses compression will have significantly reduced performance. Overheating is another possible sign of an engine in need of a valve adjustment.
This can be caused by valves with too little clearance. This lack of clearance causes the valves to close slower than they should. In other words the valves are open too long. The increased time the exhaust valve is open could overheat the engine. In addition to overheating, valves with too little clearance can cause a loss of compression in the cylinder.
This will cause severe performance issues. Overheating and loss of compression are serious issues. An overheated engine could cause the valve to deform are even break. A broken valve could contaminate your entire engine causing a costly rebuild. Either way if you have a loss of compression and an overheating motorcycle checking your valves is a good place to start. If your motorcycle used to be as efficient as prius and now its reminding you have your truck at the pump, you might have an issue with your valves.
Your valves could have a combination of loose and tight valves on the same cylinder. This could cause the exhaust valve to be opened while the intake valve is letting fuel and air into the cylinder. Road Trips and Fuel Saving Tips. It's that time of the year again where March Madness takes off and the excitement begins.
Whether you're staying at home or traveling to the game to watch, it can be a hectic time. Some trips that will be taken this year involve a car and some driving Before going on a road trip take a day to go through a checklist and inspect your car so you have some peace in mind that your car will get to where you need to go.
One thing that will cost the most and is essential for road trips is gas. When on a road trip you might fill up a couple of times and gas these days isn't cheap. Here are some fuel saving tips that will not only help save a little gas, but will help the economy a little as well. Every day we expect our car to take us places, no matter if it's to a family trip to the National Automobile Museum or to Lake Tahoe for a day at the beach.
Every time we get in the car and drive, whether it's night or day, our headlights are effected by it. Over time the sunlight can cause yellowness or it can wear down the plastic in the headlight structure and cause it to become dull and cloudy. Smog and car chemicals from the engine aslo cause headlights to yellow over time, giving off less visibility. The more you drive, the more your headlights are exposed to oxidation and dust. Once a week, maybe when your family is all packed and ready to go to Heavenly Ski Resort, take a damp micro fiber cloth to wipe down your headlights.
If you notice that they are cloudy or yellow, you can purchase a headlight restoration kit at a local auto parts store and your headlights will look brand new. Have you driven down that one road in your town that has potholes all over and desperately needs road work?
Well, surprisingly that bumpy road can misalign your headlights. The potholes and jolts cause the headlights to become displaced, meaning your lights might not shine straight anymore. There are a couple easy checks to see if your headlights are misaligned: - park your car in front of a wall or garage door, shine your lights and if one looks higher or lower than the other than they might need a realignment - or use masking tape to mark the vertical and horizontal centers of the light beams on the wall and see if they are even with eachother Even if you clean your headlights once a week and they shine just as bright as before, there still is the possibility that one or both headlights can go out.
If one headlight happens to go out before the other, it's recommended to replace both of them at the same time because chances are the other bulb's not too far from going out as well. Let's say youre driving back from a UNR basketball game and all of a sudden a headlight goes out.
It's best to avoid driving at night with only one functional headlight since your visibility is now minimized. Take the time the next couple of days to have them replaced and realigned so you'll be ready to head back out into the night.
Whether you're driving to Mt. Rose for a ski day with the family or coming home from a UNR event, we want you to travel safe and knowing how to maintain your headlights visibility is just a start.
Understanding Automotive Alignment Issues. By gregsgarageinc gmail. Automotive alignment refers to the angles of the wheels relative to the body of the car. Ideally, all four wheels will be set at the exact same angle. Over time, however, alignment will naturally become skewed.
This can lead to a surprising number of problems, including excessive fuel consumption, uneven tire wear, and even transmission breakdowns.
Fortunately, you can maintain proper alignment simply by having your car serviced on a regular basis. If you would like to learn more about poor alignment, as well as how to recognize that your car may be suffering from it, read on. This article will provide a useful overview of the symptoms, causes, and repair of bad automotive alignment.
Symptoms of Poor Alignment Far and away, the most common sign that your vehicle suffers from poor alignment involves a steering wheel that constantly seems to be pulling to one side. The longer you go without attending to this issue, the worse it will become.
Eventually you will find yourself having to be correcting the steering wheel's pull at virtually all times. In the early stages, however, things won't be so drastic. In fact, you may completely fail to notice the feeling of being pulled. However, you may notice that your steering wheel appears cocked slightly to one side or the other. This may be the case even when your car shows no difficulty in traveling straight ahead.
If you suspect that you may be suffering from poor alignment, investigate your tires next. Uneven wear offers a strong clue that alignment issues may be at play. To distinguish from other causes of uneven wear — failure to regularly rotate your tires, for example — look closely at where the wear is concentrated. Markedly less tread along the inner or outer wall of the tire strongly suggests that alignment may be at play.
Causes of Poor Alignment Automotive alignment represents a sensitive system, one that can easily become jarred from its proper state. Shocks and bumps that you would otherwise give little thought to may be more than enough to knock your car out of alignment.
If you tighten the lash , this has the opposite effect , as your realized torque will be decreased, and your horsepower will be achieved at a higher rpm. So, while it is proven that adjustments in valve lash can affect the torque and power of your engine, is it really enough of an affect to make it worthwhile.
The valve adjustment won't effect the idle , unless they're adjusted so wrong and are to tight. That'll keep them from closing all the way and they will burn real easy like that. Either you have a vacuum leak from an unhooked hose or leaking one, or, your valves were not adjusted right. Re: how often for valve adjustment SleepnCiViC The '98 service manual says to do this every 30K miles 48K km or 24 months, whichever comes first.
The valve clearance gets wider when the engine is hot. The clearance spec is not about thermal expansion, it is about the amount of time the valve gets to sit down and give off heat through the seat. The factory spec should be considered the minimum and there is no good reason to ever set them tighter.
A misfire alone doesn't necessarily mean that a rocker arm has suddenly fell out of place. More common causes of a misfire could be a bad coil, worn plug or plugged injector.
However, many 3. That's why engines have clearances between the cams and valves to help out with the longevity of the engine. If the gap is too big, you 'll end up with a lot of valve -train noise. If the gap is too small or if there's no gap at all, the valves won't seat fully in their optimum positions. Ordinarily, valves that are adjusted too tight would lead to a loss of compression. However, that would not cause the plugs to appear as they do as mechanical compression and the ignition system are fairly independent systems.
Setting the clearances too tight can prevent valves from completely closing or not closing for enough time , which may cause extreme heat damage and complete valve failure.
Always keep your engine valves adjusted according to the manufacturer's specifications. Phillip James has worked in the engineering and technology fields since and began writing in His work has appeared in his university newspaper, the "Avion," and he has done private technical manual work.
He is pursuing a Bachelor of Science in aerospace engineering from Embry-Riddle Aeronautical University and his aviation airframe and powerplant mechanic certification from the Federal Aviation Administration.
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