Minggu, 14 April 2013

Breathe Easy: Taking Care of Your Motorcycle's Air Filter

You know you love to ride. The sound of the wind. The complete feeling of freedom and the open road. Lately though, it seems that you ride lacks the performance that it once did. This can happen when your bike isn't properly maintained. Just as we do, your bike needs to breath freely to perform.
Fresh, clean air is required for your bike to run at its best. If your air filter is clogged and dirty, you'll experience all types of performance degradation such as reduced gas mileage, power loss, rough idling, and lots of other issues. Servicing your bike's air filter is a little insurance to keeping it running at its best.
Does your bike have a rough idle? Does it lack the performance that it once did? Does your bike lack some of the characteristics that actually drew you into the motorcycle lifestyle in the first place? All these things can happen when your bike isn't properly maintained. Just like us, your bike needs to breathe easy.
In order for your engine to run at its best, it must have among other things, fresh, clean air. If your bike's air filter is clogged and dirty, you will experience reduced gas mileage, power loss, rough idling, and a host of other issues. Changing or servicing the air filter is an easy way to keep other bike systems operating at their best.
What does your air filter do?
An air filter basically traps particulate matter such as dust and dirt, and prevents it from entering into your engine. Typically, they are made of resin-impregnated, heat-cured "paper" that's folded into pleats or the air filter can be made of foam. These pleats or foam catch and hold the dirt. Once these pleats and other surfaces are covered with dirt, airflow is greatly reduced. Thus, now your engine is not getting the airflow that it needs to run efficiently.
To illustrate my point, imagine that you were getting ready to take a quick 2 mile jog.
For the first mile, you're running strong and getting all the fresh air you need. Now for the second mile, I want you to tie a handkerchief around your nose and mouth like a bandit of the "Old West". Your second mile is going to be miserable because your airflow is now restricted. Your lungs and your body will not be operating at their peak. I think that if you actually tried this, I doubt you'd ever neglect changing your air filter again!
Different types of air filters
There are several different types of air filters that you can use for your bike and they vary by manufacturer. As mentioned above, you have foam filters, paper filters, and pleated cotton filters.
Foam Air Filters are used in many types of small engines including lawnmowers, snowmobiles, and of course motorcycles. Generally, they are reusable, long-lasting, and efficient.
Paper Air Filters are generally used for OEM (Original Equipment Manufacturer) applications, meaning this is more than likely the type of air filter that your bike came from the factory with. They are also widely used for automobile OEM applications. They are typically pleated and may be reinforced with metal to help them hold their shape.
Some of the best types of air filters available today are Pleated Cotton Air Filters. These reusable aftermarket filters offered by K&N and BMC, bring the best in cost savings and longevity. Once in service, they could last the life of your motorcycle.
Cleaning or Replacing Your Air Filter
Depending on the type of bike you have, getting access to your bike's air filter may be an easy affair or one that will take a little more effort. It may be as simple as removing the air filter cover on the side of the engine or you may have to remove the gas tank to gain access. Check with your owner's manual to determine if you need to remove the seat or any other bodywork to get to the gas tank for proper removal. If you need to remove the tank, be sure to turn your petcock to the "off" position if you have one. No, I don't mean "put the rooster in the barn". Sorry, I couldn't resist. If you don't know what a petcock is, you probably don't have one. A petcock is simply a switch that allows you to select which part of the gas tank fuel is drawn from. Make sure you have some rags nearby to catch spilt fuel. Unbolt the tank and disconnect and label any wires or hoses to ensure proper reassembly. Again, consult your owner's manual for specifics.
Once you have full access to the air filter, give it a quick blast with compressed air to clean dust and dirt from the screw holes before unscrewing it. Be careful not to drop any debris in to the engine compartment. If you drop a screw, use a telescoping magnet to fetch it. Once you've removed the air filter, cover the top of the air box with clean rags to keep the bad stuff out. Especially if the air box is going to be exposed for a prolonged period.
If you have a sponge-type air filter, you may be able to reuse it once or twice if it is good physical shape. Cleaning this type of filter requires a solvent (some kind of soap). You'll need something that can break down any oil or dirt. Rinse clean and let it air dry. If the filter is in bad physical shape, replace it with a new one.
If your pleated paper-type filter is in good physical shape, you may also be able to reuse it once. I don't recommend using this type of filter more than twice. Simply blow compressed air through the back side of the filter to clean it. Don't wet it and be sure to keep it free of oil.
If you have an aftermarket pleated cotton filter, follow these steps to clean it. First you need to spray or pour solvent to break down the oil that is used to trap the debris. Let it soak for a while and rinse it from the back side of the filter. Then you need to let it air dry. You can sit it in the sun for a few hours or hang it in your garage overnight. A few words of caution, don't use compressed air or a hair dryer to dry the filter. The cotton fibers will shrink and your nifty aftermarket air filter will be rendered useless. Next, you need to re-coat the cotton fibers with new filter oil. Don't use any other type of oil and don't over-soak the filter. A thin layer will do. If your oil uses a pour on applicator, pour it into the bottom of the pleats. Let the filter sit for a half hour and re-coat any areas that you may have missed.
Now, let's put the filter back in. Installing a new or freshly cleaned filter is just the reverse of removal. The key here is to make sure that you have the right orientation. You must be facing due-north while you put the filter back in. Just kidding. In other words, the filter should face the proper direction for air flow. If the filter has a rubber o-ring, make sure it is in the proper position. Put the cover back on. If it has multiple screws, tighten them in an alternating pattern so that the cover pressure is evenly applied. If you removed your gas tank or other body panels, you can reinstall them now. See how easy that was?
To keep your motorcycle breathing easy, just get into the habit of changing out or cleaning your air filter once a year. Change it at the beginning of the riding season, every season. Your bike will burble, scream like a banshee, or purr like a kitten when you ask it to perform. I can see you grinning from ear-to-ear already. Let's ride.
To learn more, download my free copy of The Garage Insider:  The Top 10 things your mechanic doesn't want you to know that can Literally save you Thousand$!
Courtney Evans is the Publisher and Editor of www.GreaseMonkeyJunkie.com, the premier weekly newsletter for the DIY Mechanic

Kamis, 11 April 2013

The European Sports Car

A review of The European Sports Car, covering development, important features, and technical data of each model in the range, from the Golf GTi Mk1 to the Peugeot GTi 1.9.
In this Article, I offer a nostalgic review of two popular European sports cars, which were manufactured during the period 1975 to 1999.
GOLF GTI
Mark 1
In 1975, the VW Golf GTI sports car was launched at the Frankfurt Motor Show.
It was one of the first small cars to use fuel injection instead of carburettors.
This, coupled with its light weight and 1.6 litre engine, helped to create its high performance.
It was offered as a 3 or 5 door hatchback, and was an immediate success.
The Mark 1 Golf GTI was one of, if not the first, cars to be designated as a "Hot Hatch", referring to it being an upgraded small family saloon.
Although some left hand drive cars reached the UK market in 1977, it was not until 1979 that the first right hand versions arrived.
One motoring magazine trumpeted that the Mark 1 Golf GTI was the third best car of the 1980's.
Mark 2
In 1984, the now successful Golf GTI sports car was presented in the Mark 2 version, again as a 3 or 5 door hatchback.
Like the later Mark 1's, it used a 1.8 litre, Bosch fuel injected engine.
It had a different chassis, and the new styling introduced it to a wider audience. Sales of the Mark 2 exceeded those of the Mark 1.
In 1986, the Golf GTI 16v was introduced. It used a 16 valve, double overhead cam, 1.8 litre engine with a compression ratio of 10:1.
This model was distinguished by red and black "16" badges at the front and rear.
In 1990, as part of a facelift, the Golf GTI Mark 2 received a distinctive "Big Bumper" at the front, which became standard on all future models.
This addition made the Mark 2 extremely desirable.
Also, that year, the Golf GTi Mark 2 G60 was launched.
It used the 16 valve, double overhead cam, 1.8 litre engine fitted with a G60 supercharger, and a compression ratio of 8.8:1.
Its performance was impressive. The G60 16V engine was the toughest G60 unit that VW produced. It was a limited edition model, with only 71 ever built.
Mark 3
In 1992, the Golf GTI Mark 3 sports car was launched. The basic model used a 2 litre, 8 valve, single overhead cam engine, developing 115 bhp.
However, in 1993, the Mark 3 was fitted with a 2 litre, 16 valve, double overhead cam engine which developed 150 bhp.
In 1992, a version of the Golf GTI Mark 3 was introduced.
Called the VR6, it was powered by a 2.8 litre, 12 valve, double overhead cam, V6 engine, developing 174 bhp. It was an instant success.
Mark 4
In 1998, the Golf GTI Mark 4 sports car was introduced with improved body styling.
The basic model used the 2 litre, 8 valve engine as in the Mark 3.
However, five high performance variants were also available:
  • There was the VR6 version, with a 2.8 litre, double overhead cam, 24 valve, V6 engine which developed 204 bhp
  • A variant of this was the 4Motion, a four wheel drive, Golf GTI, based on the 2.8 litre, V6 engine, with a six speed gearbox, developing 201 bhp
  • There was a version with a 20 valve, turbocharged, 1.8 litre engine, developing 150 bhp
  • If this was not enough, the turbocharged, 1.8 litre model was available with a six speed gearbox, which developed 180 bhp
  • Finally, in 2002, the capacity of the 2.6 litre, V6 engine was increased to 3.2 litres. It had a six speed gearbox, a compression ratio of 11.3:1, and developed 238 bhp
PEUGEOT 205 GTI
In 1984, the Peugeot 205 GTI 1.6 sports car was launched.
Offered as a three door hatchback, it was considered to be among the most popular hot hatches on the decade.
Due to its light weight, it had a high power to weight ratio.
Early versions were powered by Peugeot's 8 valve, single overhead cam, 1.6 litre engine with Bosch fuel injection, a five speed gearbox, and disc brakes all round.
The engine was an all aluminium unit, being flexible and easy to rev.
In 1986, it was slightly modified with larger valves, an uprated camshaft, and a close ratio gearbox.
That same year, a convertible version was introduced.
Also in 1986, the Peugeot 205 GTI 1.9 sports car was introduced.
This used a long stroke, 1.9 litre version of the original engine. The result was greatly improved flexibility.
The suspension was stiffened to reduce pitch and roll.
The shorter stroke 1.6 litre engine had the reputation of being eager and easy to rev, whilst the 1.9 litre had more torque, and felt lazier but with more torque.
Strict emission regulations caused the 1.6 version to be withdrawn in 1992.
However, by enabling the 1.9 version to perform effectively with a catalytic converter, which reduced bhp to 122, production was maintained until 1994.
Post 1990 cars are the ones to look out for. A total of 332,942 inits of the three variants were built.
It has been suggested, but yet to be proved, that the Peugeot 205 GTI stole the crown from the VW Golf GTI in terms of who was the king of the GTI's.
This marked the end of my Review of The European sports car
Perhaps this stroll down memory lane might have answered, or at least shed light on, a possible question:
Which European Sports Car is Your Favourite
However, should this question still remain unanswered, I will be reviewing, in some detail, in future articles within this website, this range of European sports cars which were featured in the memorable era spanning 1950 to 1995.
I hope you join me in my nostalgic travels "down sports car memory lane".
If you would care to view my Original article, containing Photographs, Videos, Technical Data, and Charts not shown in this Article, then please click the following link:
http://www.sportscar2.com/sports-car-european.html
Alternatively, please view my Website on:
http://www.sportscar2.com/