(Honda performance parts) Handling Soot in Antique Car Engines

November 1st, 2008 Admin Posted in automotive |

By Peter Salmonford

In the course of running soot is formed in the engine, the quantity varying with the richness of the mixture and the facility for the lubricating oil to get past the piston. This carbonaceous deposit, combined with the non-inflammable constituents of road dust which are sucked through the carburetter, adheres to the cylinder walls and combustion head, causing falling off of power, and in time preignition. When the valve cap is removed it will be found that its underside is coated with soot, and sometimes even with a hard deposit, an indication of the state of the interior of the cylinder. To remove this carbon deposit, the usual procedure is to take off the cylinder so as to expose the parts and scratch off the deposit with a screwdriver or some similar instrument. From the tops of the piston the deposit can be cut away with a knife, and when removed the surfaces should be polished with fine emery cloth, as deposit adheres less easily to a polished surface. The deposit must be completely removed from all parts of the cylinder as well as the piston, a matter of some difficulty.

There have been one or two inventions evolved from time to time to remove the deposit without necessitating the dismantling of the engine. One of these is to insert a steel ball of about 5 inch diameter into the cylinder and then to run the engine, its action being to hammer the carbon deposit and so chip it off the surface. Another, and more promising, process consists in passing a stream of oxygen into the cylinder, lighting it, and so causing a chemical combination to take place between the carbon and the oxygen. As soon as all the carbon has combined the flame goes out, and it is known that the cylinder is clean. The writer has not tried either of these schemes, but mentions them as matters of interest. The ball process, however, would seem rather risky.

To keep an engine in good running order the valves, apart from grinding-in, require careful attention. In the olden days silence of running was not of great importance, but nowadays it is an essential, and to obtain it one of the most important points is to see that the clearance between the valve tappet and the bottom of the valve stem is small. As the engine runs it will be understood that the tappet rises rapidly and strikes the foot of the valve. If there is a large clearance between these two the impact between the tappet and the valve causes a clicking noise, which should be stopped by adjusting the tappet head close up to the valve stem. The usual distance or clearance is about 5 inches. The top of the tappet head is inlaid with fibre to reduce the noise, and in course of time this fibre becomes dented or recessed. The tappet should then be removed and its head filed flush so as to remove the indentation.

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.

The Performance of Antique Car Engines
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.

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.

Your Source For Information On Genuine Honda Parts