Show I I I CARBON By Barney Oldfield t Kins CopyrIght 1313 by calc cale Inc i I dont don't know of oC ar any other substance much to hinder the correct that does as I and satisfactory operation of or the automobile automobile automobile auto auto- mobile as this debased relative of coal carbon Of or course that we e know lenow as the engine water will Ul pIa play hob with when it seta gets into tho the fuel ruel line grit well behaved bearIng bearing bear bear- will vIII cut a a. perfectly ing log to pieces if IC it works its way Into I it t mud or sand will stall tho 11 car i if they ie are arc d deep deop P-C P enough ough But nut this carbon carbon car car- bon will do all of or these things and und car I do doIt doIt doit It more thoroughly and anti It Il Is present In almost all 1111 engines some somo of the time lime and in most engines all tho the time lime So Soth th there re you have ha the complete Indictment Indict indict- mont ment of ot carbon Carbon Is 18 simp simply a product by-product of or the tho e combustion of oC gasoline or other othar fuels of similar character r. r The Thc carbon as ns I originally formed formet In the combustion chamber and on the piston head is aI aI a n I sort of or soot Into Inlo this mass mas goes a a. certain amount of ot dus dust t drawn into the I combustion chamber with the air which Is burned by the explosion and forms what amounts to a gritty ash a h. h Oil that may be pumped up in in in- inthe the course of oC the engines engine's revolutions Is IsI I also burned and und adds Its resulting soot to lo the forming carbon mass matis By d de degrees ool deposit be becomes becomes becomes be- be I grees grecs this originally sooty comes harder and nd harder until in ins Inome s ome some cases It assumes an almost glassy surface which defies everything but buta a i chisel I IThe The effect of or the thc carbon mass once it has formed Is to become incandescent cent and fire the thc succeeding charges of ot fuel Cuel us as they enter tho the combustion chamber and out of oC their proper time tune for being Ignited This is simply Imply pre- pre ignition and catches the piston before it Il has reached the tho top of oC Its stroke I This results in III the piston being driven n against the aide side of oC the cylinder with a L resounding knock which is all too fa familiar Ca- Ca a- a to the car owner I And dont don't think that carbon con confines Cines its operations to the combustion cham cham- I cham-I ber Not on your life Ufe Carbon Is too self assertive el-as el for Cor that It invades In the I valve o seats eat and faces with an nn enthusiasm I worthy of oC a better cause causo In tho the valve system the tiny liny particles of flinty carbon are arc forced into the metal Itself h by the constant hammering hammering- of ot I the valves val which results in pilling pitting Now pitting leaves a certain amount of ot I i open space between the metal surfaces through which the fuel Cuel leaks H out This This' condition results re In misfiring and loss of oC compression I And even en this Isn't enough for this impudent nt carbon stuff stuer It H takes a I particular delight in depositing on the ends of oC spark plugs and frequently frequent I l short hort circuits result from carbon In I this location You sec see the carbon I forms nr m a. a t l Irl hr-Irl n. i f th Mir Mir- 0 W w p I rent relit skips If It you examine carbon under the I microscope you will find that the surface surface surface sur sur- face of or the deposit has Innumerable tiny LIllY projections sticking out from It It Jt It is these which become e incandescent I and fire ire the Incoming charges before j the tho phs piston ton gets to its pr proper per position I I at the top of oC the cylinder c I Now I do not want to have my readers readers read read- I ers get the thc idea that all knocks arc caused by carbon because they arc are I not Carbon is I think tho the most frequent fre I fre-I quent luent cause but there arc others For Instance too loo great reat an advance of oC the spark lever will cause causo knocking and II so will so-will will many other things But when knocking develops de accompanied by overheating and noticeable loss lose of power it Is pretty certain that carbon Is back of ot it With carbon as with most other things thinS's in this life lite an ari ounce of ot prevention pre pre- is worth a pound of oC cure One of the prime causes of oC carbon deposits is using too rich a fuel mixture This means that there thero is too heavy a content content con con- 1 tent nt of oC gasoline in the mixture and too little air lr The excess gus gas simply burns leaving its Us card in the form orni of carbon When too loo much II is used In the crankcase crankcase crank crankcase case some Borne of the excess forces its ils n DUSt th Ihn t- t I ni t- t i 4 t i L. L way j vy 60 u iu into uno nc corn com chamber where it burns burns and nud leaves leaves lea Ill I'll do the oil carbon Justice though by saying that it is usually mol moist t and greasy In its Ils early stages ages so that it can cnn be bo easily wiped off whereas tho the carbon from gasoline quickly a assumes umes a a. hardness of oC surface Therefore tho the first steps to be bo taken to combat carbon arc are to sec see that th the fuel mixture is right and that the crank case caso has Just tho the right richt quantity and quality of ot oil There Thero havo have recently been Introduced certain devices kno known knon n as vaporizers or steam injectors These it Is 18 claimed will win clean any engine of ot carbon and keep It Il clean In operation these de do- do vices ices take moisture from the thc cooling system and inject it Into the fuel This tends to aid combustion and also does docs undoubtedly minimize carbon deposits I doubt that any device of or this 1 kind will vm clean an engine or of carbon deposits that have havo already formed I do think however that If It a vaporizing device of or efficient design Is attached to lo an engino en- en j gino which has had Its cylinders 4 cleared leared of or carbon it will come pretty 4 lose to keeping them clean When hen it ft comes to r m h hV V deposits that have already formed we find a number of ot Satisfactory methods of ot handling tho the matter There Thero Is la no question n that Viat Ul the ono one best method is tho the time honored one of ot scraping out the tho tooTs deposits with a a. specially made set let of ot tools When th the tho engine has haa a detachable I ii head this method ou ought ht to be used Next Wo we hay have the tho oxygen method In Jm which tho carbon Is ls burned out with an oxygen flame The Thc oxy oxygen yen en unites with firm the tho v carbon l and ad departs ta In hi the form torm of oC f carbon rm J gas s This TIlls method Is and ad must be used when a a. quick Job Is necessary or when the Under cylinder r head Is ls n not t detach- detach detachable able Next comes what wha c 0 mav thay call the patent medicine method metho In th this case casc certain compounds arc used and theY are generally In the form tonn of liquids which are aro injected Into tho cylinders ers to loosen the tho carbon an and permit It to be blown out or of the tho ex- ex haust Finally there Is the chain method in which a fIne chain With tempered links Is dropped Into the combustion chamber while Whilo the engine is 18 running The chain Is ls tossed around b by the th movements mO or of the tho o ps piston an and knocks off ott the carbon deposits S. S Whenever the carbon is 18 l or n otherwise so cleared out of or thc engine the valve system ought to lo be bo given gl onie attention The Tho valves wIn will need ned grInding It the engine needs ncr carh carb carbon n removal You can cn bank bahk on that thal be be- I cause the same basic trouble operates I In Jn each case I I Finally let lot me roe caution my readers i ito carbon tooth to fight this great enemy anem and naiL Dont Don't let It get ahead of ot you ou but if It It do does s take a a. cIa lay day off ort and arid give tho whole works a a. thorough cleaning out You can cult cant t get et satisfactory tor tory torf or 01 economical operation with Ith tho engine even e partly carbonized I |