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The Kind

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THE KIND 03? AN =GINS YOU WANT There are many makes of internal combustion engines on the market and the kind you want will depend very largely on what you intend to use it for and the conditions under which you are going to run it.

There are, however, a few considerations in buy ing an engine that are fundamental and which if you are looking for service and economy at the same time you ought to know about, for if you buy one haphazard of the first make you come across you will stand a very slim show indeed of getting a good one at a fair price.

Small versus Large be it from me to want to knock the small manufacturer but to buy the best gas engine that can be made and get a guar antee that is backed up by something that looks like real responsibility you have simply got to buy an engine of a big maker or of a house of recognized financial standing.

When you buy an engine of such a concern and anything goes wrong with it you will have far less trouble in getting the dealer to make good' in ad justing the matter. Not only this but all up-to-date engines are built on the interchangeable plan, as I have mentioned before, and if you are dealing with a big company you can get a repair part in the short est possible time because they always keep a large stock of replacements on hand.

Further, all big concerns have branch offices in many of ,the larger cities in the United States and so wherever you live you will have one of these serv ice stations close at hand and this is a very great con venience. Finally, a lot of the smaller makers come and go and if you have one of their engines and they go out of business the only way you can get a repair part is to have it made to order, and this will some times run your replacement part into big money.

And another thing, don't make the mistake of buy ing an engine of some obscure maker because you can get it a deal cheaper than you can get one of the same horsepower of a well-known maker. If big concerns charge more for their engines you can de pend on it that a good engine built to stand the test of time and the stress of duty simply can't be built for a lower price. Shoddy costs less in the begin

ning, but it can't compete with wool for wearing qual ities.

Finally, every large manufacturer maintains an experimental laboratory where all new devices are tested out by experts before they are ever put on the engines they sell.

In order to buy a cheap make of engine second hand and get your money's worth you must be able to do, as the magician says, possible impossibilities, and that is to perform to a nicety the operation that is called in mathematics the calculus of probability which in turn means the calculation of the likelihood of events.

Then after you have found the product, looked over the machine, paid the purchase price and in stalled it you will be the better able to bear up with fortitude if anything goes wrong with it.

But if you can buy a good make of second-hand engine like the Otto, or Bessemer or De La Verne of a reputable dealer who may occasionally have such a one that he has taken in part payment for a new one of greater power you will not only be satisfied with it, but you will save a lot of money in its ini tial cost and in its upkeep as well.

Vertical versus Horizontal your floor space is at a premium the vertical type of en gine is, of course, the one to use and hence this ap plies to all motorcycle, motor car, marine and air plane engines and very often to stationary engines, as well.

Not only is floor-space a factor in choosing be tween the vertical and horizontal types of engines, but since the crankshaft of the former sets close to the bottom of the frame it puts it in exactly the right place to couple it up with the propeller shaft of the cycle, car, boat or plane.

In very small stationary engines it does not mat ter much whether it is vertical or horizontal, unless the crankshaft of the engine is to be coupled direct to the armature shaft of a dynamo when the design of the former makes it somewhat easier to connect up and perhaps a bit steadier when it runs.

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