AUTONET TV

Combustion Choreography: Timing Belt Replacement at Matt Davis Auto in Garner

Have you ever seen a ballet performance? Have you wondered how all of those dancers manage to travel all over the stage jumping and twirling and never crash into each other? That's the job of a choreographer.

Our auto engines are also highly choreographed. Pistons travel up and down inside cylinders. Valves at the tops of the cylinders open to let air and fuel in or exhaust out. These valves have to open and close at precisely the right time or the engine will run poorly if at all. The movement of the valves and pistons must be in harmony with each other. This choreography is the job of the timing belt or timing chain.

Timing belts, or chains, rotate the shafts that control the opening and closing of the valves. Timing chains are metal and durable enough that they may never need to be replaced.

Most vehicles, however, use a timing belt. Timing belts are tough and flexible, and considering the work they do, they last a long time for Garner auto owners . But they do wear out. If they break, the consequences for Garner drivers can spell disaster.

No matter what kind of engine you have, a broken timing belt will cause the engine to shut down or will lead to major engine damage. But in some engines, the valves protrude down into the cylinders enough that if the timing belt breaks, the pistons can smash the valves, bending or breaking them. If the engine is spinning fast enough, the broken parts can then shred the cylinder head. This adds to thousands of dollars of engine damage.

The only way the damage can be avoided by Garner auto owners is by replacing the timing belt on schedule. Most vehicle manufacturers recommend replacing the timing belt at 60,000 miles (100,000 kilometers), but others can go as long as 90,000 or 100,000 miles (145,000 to 160,000 kilometers). Check the schedule for preventive maintenance in your owner's manual. If you're due or overdue for a timing belt replacement, don't put it off. Get it done now at Matt Davis Auto in Garner.

Your friendly and knowledgeable Matt Davis Auto technicians probably aren't great dancers, but they can offer you some great auto advice on how to keep your engine properly choreographed. Don't hesitate to consult them about replacing your timing belt or any other car care concerns you may have.

Matt Davis Auto
875 US Highway 70 W
Garner, NC 27529
(919) 600-5125
http://www.mattdavisauto.com

The Matt Davis Auto Guide to Saving Fuel: Get Rid of Dirty Oil

A lot of us drivers are asking ourselves the same question lately: how can we save on fuel? Garner area residents are all cutting back, if not in fuel consumption, then in other areas of our lives.

Preventive Maintenance

Preventive maintenance is an important way people in Garner can conserve fuel by improving fuel economy. And one of the easiest and most effective ways to do that is to keep the oil in our vehicle adequate and clean.

Oil lubricates your vehicle engine and keeps it running smoothly. If you're running low, there is increased friction in your engine. Friction creates drag, which means it takes more fuel to keep the vehicle motor running. This all translates to lower fuel economy.

Check your oil to make sure the engine is getting all it needs. Your owner's manual and service advisor at Matt Davis Auto will tell you the proper weight and type of oil for your vehicle.

Responsible Car Care

Dirty oil grits up your engine, which also increases friction. So even if there's enough oil, you're still getting that extra drag that reduces your fuel economy. That's why your owner's manual recommends getting your oil changed regularly. It's good auto advice.

While you're checking your oil, you should take a quick look at your transmission fluid as well. Your transmission also needs clean, adequate fluid to work efficiently. An inefficient transmission also translates into lower fuel economy.

Your service advisor at Matt Davis Auto will be able to check your oil and other fluids, top you off or change your oil if necessary.
Your owner's manual will have recommendations on how often you should check your oil and transmission fluid. But you can also consult with the pros at Matt Davis Auto in Garner. The types of roads you drive on in NC, the climate where you live and the air quality in your area can all affect how often you should change your oil.

And don't forget that this will improve our environment here in Garner as well. Improved efficiency translates to fewer emissions. Changing your oil as scheduled doesn't just help your vehicle (and your pocketbook), it helps keep the air clean as well.

Matt Davis Auto
875 US Highway 70 W
Garner, NC 27529
(919) 600-5125
http://www.mattdavisauto.com

Tire Tread Depth for Garner, NC Drivers

Driving on bald tires is like playing roulette. Though you may be fine today, eventually your luck is going to run out.

The Feds don't have any laws for tread depth, but 42 of the states, and all of Canada, do have regulations. They consider 2/32 of an inch to be the minimum legal tread depth. Two other states, including California, consider 1/32 to be the minimum and six states have no standards at all. Call us at Matt Davis Auto; (just call (919) 600-5125) to find out what your requirements are in the Garner, NC, area.

Since 1968, U.S. law has required that a raised bar be molded across all tires. When tires are worn enough that this bar becomes visible, there's just 2/32 inch/1.6 mm of tread left. But does that older standard give Garner vehicles enough safety?

Consider this: Consumer Reports recommends tire replacement when tread reaches 4/32 inch/3.2 mm. And the recommendation is backed by some very compelling studies. Now before we go into the studies, you need to know that the issue is braking on wet surfaces.

We tend to think of the brakes doing all the stopping, but Garner vehicles also need to have effective tires to actually stop the car. When it's wet or snowy in Garner, NC, the tread of the tire is critical to stopping power.

Picture this: you're driving in Garner over a water-covered stretch of road. Your tires need to be in contact with the road in order to stop. That means the tire has to channel the water away so the tire is contacting the road and not floating on a thin film of water – a condition known as hydroplaning. When there's not enough tread depth on a tire, it can't move the water out of the way and you start to hydroplane.

This is where the studies come in. We think Garner drivers will be surprised. A section of a test track was flooded with a thin layer of water. If you laid a dime flat on the track, the water would be deep enough to surround the coin, but not enough to submerge it. 

A car and a full-sized pick-up truck were brought up to 70 mph/112 kph and then made a hard stop in the wet test area. Stopping distance and time were measured for three different tire depths. First, they tested new tires. Then tires worn to legal limits. And finally, tires with 4/32 inch/3.2 mm of tread were tested (the depth suggested by Consumer Reports.)

When the car with the legally worn tires had braked for the distance required to stop the car with new tires, it was still going 55 mph/89 kph. The stopping distance was nearly doubled. That means if you barely have room to stop with new tires, then you would hit the car in front of you at 55 mph/89 kph with the worn tires.

Now with the partially worn tires – at the depth recommended by Consumer Reports – the car was still going at 45 mph/72 kph at the point where new tires brought the car to a halt. That's a big improvement – you can see why Consumer Reports and others are calling for a new standard.

Now without going into all the details, let us tell you that stopping the truck with worn tires needed almost 1/10 of a mile (.16 km)  of clear road ahead to come to a safe stop. How many Garner drivers follow that far behind the vehicle ahead? Obviously, this is a big safety issue.

The tests were conducted with the same vehicles but with different sets of tires. The brakes were the same, so the only variable was the tires.

How do people in Garner know when their tires are at 4/32 inch/3.2 mm? Well, it's pretty easy. Just insert an American quarter into the tread. Put it in upside down. If the tread doesn't cover George Washington's hairline, it's time to replace your tires. With a Canadian quarter, the tread should cover the numbers in the year stamp.

Now you may remember doing that with pennies. But an American penny gives you 2/32 inch/1.6 mm to Abraham Lincoln's head. The quarter is the new standard – 4/32 inch/3.2 mm.

Tires are a big ticket item, and most people in Garner, NC, want to get thousands of miles/kilometers out of them. Just remember: driving on bald tires is like playing roulette.

Have Mr. Washington look at your tires today. If he recommends a new set, come see us at Matt Davis Auto in Garner.

Matt Davis Auto
875 US Highway 70 W
Garner, NC 27529
(919) 600-5125
http://www.mattdavisauto.com

A Not-So-Straight Story (Vehicle Pulls to One Side)

A vehicle should travel straight down a straight road with the steering wheel centered.  But time and travel can take their toll and soon you may find your vehicle pulling to the left or right.  Those are not good signs and should be taken care of fairly quickly.

One thing that you should note is when this is happening: if it is all the time, only when you brake, only when you accelerate. If you describe these symptoms to the service adviser or technician, it may help them pinpoint the cause more quickly. 

Many things can cause a vehicle to pull to one side, one of which is that it's out of alignment.  If so, you could be doing damage to other components of your vehicle if you keep driving with it this way. If your tires show signs of uneven wear on the treads or if your wheels squealing, that is another clue.

Improperly inflated tires can also cause your vehicle to pull in one direction.  Your service facility can check to see if your tires have the pressure recommended by your vehicle's manufacturer. 

When steering linkage wears out or a wheel bearing goes bad, both of those can cause a vehicle not to track straight. When components age and loosen up, they can present a safety hazard and premature tire wearing. 

Maybe you notice the pulling only when you are braking.  That points to a failure of your braking system, perhaps a sticky brake caliper.

When your vehicle was brand new, it went straight unless you guided it on a different path. It's best to have it checked out if it is showing some of these symptoms.  It could save you money in the long run and you'll be driving a safer, better performing vehicle.  That's what they mean by steering you right!

Matt Davis Auto
875 US Highway 70 W
Garner, NC 27529
(919) 600-5125
http://www.mattdavisauto.com