OCR Text |
Show Carbon Deposits Caused by Poor Grade of Oil Carbon deposits in the cylinder; may be caused by excessive use of oil or an Inferior grade of oil. The most common cause of too rich a fuel r.-ixture due to running with the choke Ofn for too long a time. The formation forma-tion of the carbon deposit can be delayed de-layed by occasionally pouriDg a little kerosene into the cylinder while hot and allowing the engine to stand without with-out running for some time. When it Is started the softened carbon will be carried out by the exhaust. Whenever When-ever necessary the carbon should be removed by scraping. This Is done by removing the cylinder head and ning a scraper on the heads and the Internal surface of the combustion chamber, |