Why adjust valves

Why You Need a Valve Adjustment for Your Diesel Engine A valve adjustment sometimes also called an overhead is vital to the health of your diesel engine to ensure proper combustion. What is a valve adjustment? When do I need to have a valve adjustment? Why is a valve adjustment procedure important? These issues include: The engine will not operate at full power You will burn through fuel quicker You will have increased exhaust smoke Should I attempt a diesel engine valve adjustment myself?

Facebook Twitter LinkedIn. More From Allstate Peterbilt. Search for:. All tax, title and vehicle registration fees are additional. See dealer for complete details. Adjust by turning the pivot post at the opposite end of the finger from the valve, hold the post to stop it turning while you slacken or tighten the locknut. On overhead-camshaft engines, check the clearance of each valve when the lobe of its cam is pointing directly away from it.

Turn the crankshaft only in its normal direction of rotation, using a spanner or socket wrench on the crankshaft-pulley, to move the camshaft. The valves come into the checking position in a jumbled order - do not mix up inlet and exhaust clearances. On tappets with shims, check the clearance by inserting the blade or blades of a feeler gauge between the back of the cam and the tappet. The correct blade should be a close sliding fit in the gap.

If it refuses to go in, or feels loose, try other blades to find what the gap actually is, and whether it is within the allowable limit. Any tappet clearance outside the limit should be adjusted by a garage. However, on certain Vauxhall engines you can make small adjustments by means of screws which slide wedges under the shims: these screws are adjusted with an Allen key.

On an indirect overhead camshaft with finger-type followers see right , check the clearance in the same way between the back of the cam and the follower. The pivot post has a locknut around its base. Hold the post with a spanner while you slacken the locknut, then turn the post anti-clockwise to reduce the clearance and clockwise to increase it. When the gap is correct, hold the post steady while tightening the locknut, then check the clearance.

In a second type of indirect-acting overhead-camshaft engine, the cams bear against the ends of rocker arms. To adjust the valve clearances, use a spanner or a socket wrench on the crankshaft-pulley bolt. Turn the engine in its normal direction of rotation until No. In that position, the TDC marks on the timing scale and the pulley line up, and there is a clearance between the rocker and valve stem of both No.

Check the clearances of numbers 1, 2, 3 and 5 valves by inserting the blade or blades of a feeler gauge between the rocker and valve stem. If the clearance is wrong, either the blade cannot enter the gap or it is loose, so that you can move the rocker up and down with the blade in place.

If all these valves are correctly set, turn the crankshaft on one full turn until the TDC marks line up again, and check numbers 4, 6, 7 and 8 valves in the same way. Adjust any incorrect clearance by slackening the locknut on the adjuster screw at the camshaft end of the rocker. The Video Course teaches you everything about modern cars.

Overhead valves with rocker shaft. The job is commonly called adjusting the tappets. A few cars have hydraulic tappets, which are self adjusting and do not need checking. Keep the feeler gauge in position while making the adjustment Hold the adjusting nut steady while tightening the locknut. Adjust the follower, if necessary, by screwing its pivot post up or down. Keep turning the crankshaft until you have checked all the valves. The clearance is correct when the gauge is a close sliding fit between the two parts.

Engine Block 18 minutes. Dangers of work out shocks: Poor road handling. Worn tires. Poor braking — when a car brakes with the worn shocks, the tires tens to bounce losing contact with the road and extends the stopping distance.

Could be the difference between hitting someone or not. ABS more affected. Aqua planning normally happens when there is water on the road and the cars tires are worn, as you go over the water, the tires lift off the road and you then loose control.

Component west- due to the extra movement of the suspension with worn shocks this causes other suspension and steering components to west out quicker… can be expensive. Head light dazzle: car will bounce more causing headlights to blind oncoming traffic and can be very dangerous.

Can lose control of acceleration. Which makes it more likely to swerve and get into an accident. Replacing your struts is essential to keeping you and your family safe on the road. In order for your vehicle to last as long as possible you should take care of it like you take care of yourself. You go to the dentist, the doctor, and even shower regularly, why not give your vehicle the same treatment? Get it's regular maintenance done like oil changes, tire rotations, even changing out the filters.

Along with regular maintenance you should take your vehicle through a car wash at least once every other week. Cloudy Headlights. Everyday we use our vehicles, our headlights are affected by sunlight, smog, and other chemicals from the road which causes yellowness, along with wearing down the plastic.

This causes your headlights to become cloudy and dull. One good way to ensure that your headlights remain as clean as possible, once a week take a damp microfiber cloth and wipe down your headlights. They also have Science Saturdays second saturday of the month from am - pm, along with Second Thursday Talks second thursday of the month.

Celebrating Our Statehood for Years. This Saturday we celebrate Nevada's th birthday. Along with Nevada's birthday comes the cold weather, which means it's time to prepare your vehicle for winter, by getting it winterized. The Winterization Package includes: - Courtesy inspection - We will check the belts, hoses, filters, fluids, bulbs, battery, tires and tire pressure - Tire rotation - Check heater operation - Including defroster Call us today at Greg's Garage to make an appointment for our winterization package!

Is Your Battery Healthy? Car batteries are crucial for your car to run successfully. Old car batteries can present a number of safety and reliability issues. Your car battery does more than just turning the radio on, it actually affects the entire electrical system including the alternator. Your battery converts chemical energy into electrical energy that powers the car, it also delivers voltage to the starter. It then stabilizes the voltage energy supply that keeps the engine running.

There are several factors that determine how long your battery will last, like weather conditions, your vehicle type, and your driving habits. What causes a car battery to die quickly?

Here are some ways to tell if your battery is going bad. Fun Fact. The above picture is showing the AI Artificial Intelligence standards for vehicles. Care for your car like you. When you own a vehicle you know just like anything else it recquires regular maintenance. You probably hear it all the time that the oil needs to be replaced every 3 months or so, the air filter needs regular upkeep refer to owner's manual for exact mileage to change air filter , and your tires should be rotated just about every oil change.

Howevere there's more to taking care of your car than those three important things. Every day we do things for ourselves to help maintain a positive, happy lifestyle. Whether that is shopping for new clothes, getting a new haircut, or just treating yourself to a vacation and often times we don't even question it.

When it comes to our vehicle, well that's a different story. Over time our cars get cluttered and can become a 'trash can'. Most people don't think that it can affect your life negatively, however it does have an impact. A clean car can improve your happiness and driving. A lack of organization can elevate the stress hormone and result in feeling more tired, fatique, and even depression. Clutter can also distract you from driving and trash within your viewing space, like the dashboard can diminish your focus.

So when you go in to get an oil changed, take a quick sweep of your car for trash and clutter and take a second to throw it away. Disorganization can cause more anxiety and stress, so why not have an organized car and not cause uneeded stress in your life.

Taking your car to a car wash or washing it yourself regularly isn't just a cosmetic task. This actually adds longetivity to the vehicle by cleaning away contaminents that cause corrosion.

Cleaning the underside is important as well since it's continuously exposed to water, dirt, and grime that forms rust. But it's recommended to clean the underside when you know it has been exposed to an excess of contaminents and especially so when it has been exposed to road salts ex.

When you go skiing or fishing there is equipment needed to do the job. If you're planing a fishing trip you'll most likely bring gear like a fishing pole, hooks, extra fishing line, bait, and anything else to have a good fishing day. Well your car should be equipped with gear as well, an emergency kit. Most homes, businesses, and facilities are equipped with a first aid kit or emergency kit.

Your car is not any different and should have an emergency kit for when unexpected things happen. 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.