OCR Text |
Show KEEP CLOSE WATCH FOR FOULED PLUGS When spark plugs habitually become fouled with oit: and soot, it is a good plan to investigate , and see whether they may not be projecting too far into i the combustion chamber, particularly j when they are located in either one or ! the other of the valve pockets. If they i are screwed into the valve port caps, ! the removal of the caps with the plugs in them will be the best way to determine deter-mine the condition. The .points or the outer end of the shell should extend very little beyond the inner faces of the valve caps. Anyway, adjustments to the carbureter or lubricating system sys-tem should be made to prevent excessive exces-sive gas or oil feed. |