OCR Text |
Show Proper Compression in Motor Engine Cylinder Good compression in a motor car engine cylinder depends on the fit of the rings in the cylinder and on the fit of the rings in the grooves of the piston. Many amateur auto mechanics me-chanics fail on a ring tilting Job because be-cause they fail to realize the importance impor-tance of piston ring fit in the cylinder cylin-der grooves and the need for a clean groove that will permit the ring to operate without binding. IV five voti attempt to tit new rings scrape all Ssie O (showing ncs 0S7 i:,iAaD) 5. JVflPlsED SNOS I I A carfc:n scraper f.-Gr.lonej from an old p;ston rir.g rnaUr an idsal tool to remove the carbon frcm the ring grooves in the pi3to. carbon and gummed oil out of the piston ring grooves. A slnip'e tool for this job can be made from an old ring. Grind or tile off the ends until the remaining portion is about a third of a circle. Sharpen the edges ns shown and yon have a tool to remove re-move the emboli with ea-e. popular Science M- n'hly. |