Race Porsche

By Peter Salmonford

 

It is often assumed that when an engine is new it gives its maximum power, but in actuality this is not the case. At the outset the bearings are tight and the bearing surfaces comparatively rough, and it is not until the engine has run some months that the highest power is developed. It is not to be assumed that up to this period the engine gradually increases in power, but that a higher power can be obtained from an engine after being well run in than when it is new.

In actual practice the engine gradually gives less and less power unless it receives the necessary small amount of attention to keep it up to its best pitch. The cause of this is a gradual loss of compression, chiefly owing to the burning away or pitting of the valves and their seats, the remedy for which is regrinding. Valve-grinding is a somewhat laborious process, but it is one which generally effects considerable improvement in the engine’s running, and it should be made a periodic practice, and not be left till the engine is running very badly, as the necessary grinding will then be somewhat difficult.

If a valve is examined it will be found that it has a flat angular surface on the underside of the head, and this surface rests upon a similar conical surface, called the valve seat, formed in the cylinder head. These two surfaces must be absolutely true and smooth so as to prevent any gas leakages when the valve is closed by the valve spring.

When the exhaust valve is opened the exhaust gas, which is an intensely hot flame, passes between these two conical surfaces, making them practically red hot, which is their normal condition during running of the engine. It is hardly surprising, therefore, that in course of time the surfaces deteriorate, and the necessity for regrinding can be ascertained from an inspection of the valve and its seat. If smooth and bright all round, the valve is in good order. If dirty and rough, it requires regrinding. When loss of power is experienced, to ascertain if it is due to loss of compression, the engine should be turned round slowly, with the switch off, and if the resistance on the compression stroke is not what it was when the engine was new, it is clear that there is a leakage somewhere, and the exhaust valve should then be examined as mentioned. Possibly only one or two of the valves are at fault, so the compression in each cylinder in turn should be tested in this way.

Before a valve is ground in it is, of course, necessary to remove it, and this, with its replacement, forms probably the most difficult part of valve grinding, on account of the stiffness of the valve spring, coupled with the fact that the parts are generally difficult of access, on account of the presence of the piping, etc.

Peter Salmonford is a keen fan of cars, and likes to write about antique and modern vehcles. Take a look at his other articles on hydrogen conversion, the benefits of an electric car kit and using browns gas in your own car.

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How to Choose the Most Convenient Auto Club
By Amy Nutt

 Choosing an auto club is a very important choice. It isn’t enough to simply choose whatever auto club program comes your way. That is because each auto club is different in that they have their own set of benefits and price ranges. It is important to explore all of these options in order to find the program that is the right program. The wrong program is going to provide you with things you don’t need and those things you do need won’t be available to you. To make sure this doesn’t happen to you, make sure you do your research.

The pros and cons

There are certain pros and cons that must be evaluated when choosing the most convenient auto club. This includes cost, whether or not roadside assistance is included, if travel discounts are offered, and if any other discounts are provided to members. When it comes to cost, the cost of an auto club membership can exceed that of your regular roadside assistance. However, the auto club is going to provide you with more benefits.

As mentioned before, there are possible discounts included for when you travel. There are also discounts possibly included when you’re not traveling. For example, you can eat at a restaurant that honors your auto club card and receive 10% off of your meal total. You can also find discounts at retail outlets and outlets on the internet.

In regards to how the discounts work, a travel discount is going to provide you with savings on vacation packages, rental cars, hotels, cruises, and so much more. The discount is only relevant to traveling and nothing else. Other discounts include the restaurants and the retail outlets. A discount program is very important because that means you’re going to save some money while traveling. That is money that can be used to do something extra or eat at that extra special restaurant. Those discounts can also be the difference between staying in a 3 star hotel and staying in a 4 star hotel.

Roadside assistance

Saving money through auto club discounts is great, but roadside assistance is actually the most important part of an auto club membership. This is because roadside assistance is what is going to assist you if you’re stranded without help. It is very important to learn everything possible about the roadside assistance contained within auto club memberships. Here are the specifics that a good roadside assistance program should possess:

- Towing service: This can pay for the cost of the auto club membership since one towing can cost around $75.

- Tire change service: This is important because a flat tire can occur at anytime. Roadside assistance will summon help to put on your spare tire for you.

- Lockout service: Everyone locks their keys in their car at one time or another. Having a locksmith get the keys out of your car can cost around $30 to $40. Having this assistance provided by your auto club’s roadside assistance is included in your membership.

- Gas and battery service: If you run out of gas, roadside assistance includes gas to be brought to you so that you can get to the next gas station and fill up. They should also give your battery a jump if your battery dies.

All of these services should be included in roadside assistance, so make sure that they are. These services will ensure that you do not become stranded in an unfamiliar or dangerous place.

Do your research

So make sure you do your research before choosing an auto club. Make sure that you can use all of the services provided and that you’re not paying for services you can’t use. Everyone needs to have an auto club membership. Everyone just doesn’t need the same package.

Auto club offering emergency roadside assistance,travel packages and insurance in Ontario. You can participate in our petro points rewards offer.

Best marketplace for the best car parts
By Rony Decosta

 

When you think of buying used parts for repairing your truck, you can definitely save your hundreds of dollars. Here at www.automotix.net you can shop online for your truck or auto parts and save more than 50% of your money. The website gives an opportunity to save money. As these used parts have been certified, there is absolutely no harm in purchasing them. Safety and quality of these auto and truck parts are guaranteed. Therefore, whether you are in search of used transmissions, used engines, used bumpers, used body parts, you can save money by buying these certified used parts from www.automotix.net.

With www.automotix.net, shopping for your auto body parts, used alloy wheels, used truck parts, remanufactured engines has never been so easier before. At automotix, everything is made easy and simple. It is indeed 1 stop shop for all your automotix supplies and parts. At www.automotix.net, you will get everything including automotive interiors, truck and car body parts, engine repair parts, motors. These online auto and car parts stores provide a very simple way to save your hard earned money.

You will definitely have a great shopping experience at www.automotix.net. Automotix is the perfect place to start your shopping for your used truck or car. The bargain cars marketplace at automotix is for those people who want to sell their cars and trucks as quickly as possible. The prices of vehicles at www.automotix.net are well below the market value.

The website also provides a search engine for discovering the whereabouts of your bargain vehicle. You don’t need to waste time going through bunch of cars. The search engines for bargain cars are designed in such a way that you can easily look for what is available currently in your area. In case you want to sell your bargain vehicle and decide to find someone who requires it, all you have to do is post your bargain truck/car at automotix bargain cars.

In case you want to order supplies and parts or find automotive parts or wish to sell your truck /car parts or vehicles, then automotix automotive exchange is the best option. The downloadable software allows you to buy as well as sell automotive parts easily. With this software, you are connected to nationwide sellers or buyers of automotive supplies and parts.

This brand new patented software allows you to interact with other owners of salvage yards, automotive stores, supplies and parts warehouses, and wrecking yards. Thus, you can always contact these people if you want to buy or sell used vehicles. The desktop alerting system makes you aware when a buyer shows interest in buying your automotive parts. You can thus perform your automotive business efficiently and quickly by helping you to keep track of what is going on in the market.

Automotix is one of the biggest marketplaces for used trucks/cars, for used parts and valuable information on how to repair or maintain your vehicle. At www.automotix.net you will find different ways suitable for you to buy or sell your truck or car, including trucks advertising and bargain cars, classified trucks, and car advertising. Here at www.automotix.net, you are sure to get a good deal, when you purchase a truck or car.

We offers auto body parts for trucks and cars manufactured by Buick, Ford, Nissan, GMC, Acura Integra etc. Automotix offers auto repair tips for those in need. Automotix has made it easy for licensed salvage yard dealers laymen to buy and sell salvaged automotive parts.

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