New York Agricultural Experiment Station. 377 



Friend Mfg. Co., Gasport, N. Y. 

 Fuller & Cooper, Williamson, N, Y. 

 Goulds Mfg. Co., Seneca Falls, N. Y. 

 Hardie Spray Pump Mfg. Co., Detroit, Mich. 

 Lunt-Moss Co., Boston, Mass. 

 Phelps Mfg. Co., Phelps, N. Y. 

 Spramotor Co., Buffalo and Toronto. 



CARE OF GASOLINE ENGINES. 



In running gasoline engines unlooked for difficulties are liable to 

 come up at any time. Some of these are noticed below. 



Heating of the hearings is usually caused either by lack of oil or 

 by too tight adjustments, when the remedy is apparent. Be sure 

 that all oil cups feed. Quite often these become clogged from thick 

 matter in the oil or ftom. waste used in wiping. The valves which 

 admit the air and gas are usually constructed on the poppet type 

 and are liable to become loosened or even to break. See that these 

 are tight and all right. If the engine does not work right, first test 

 the battery to see whether there is a strong enough electric current 

 to ignite the gas. A weak current will not do that. Even when 

 there is strong enough battery to furnish a good force of electricity 

 there is sometimes trouble with the ignition which is usually occa- 

 sioned by defective wiring or by crossed wires, or by sparking plug 

 not making contact. In the last named case make the terminals 

 clean and bright. 



If the spark is furnished by the hammer-break device, possibly the 

 points may be out of adjustment and consequently do not make con- 

 tact, or the spring may have become weakened so that the sparking 

 points are not snapped apart. The remedy for any of these is 

 evident. 



If the current is all right see whether the gasoline is being fed 

 properly ; then see that the sparker is not furred up, that is to say, 



