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Thanks Dave.... But it was not my Idea.. I was inspired by a legendary BSA , that use to tear up the Hills and Hollors' Of West Virginia back in the seventies..... he..he..he
Well ...... Sometimes the ol' BSA got tore up as well. This is how one learns just HOW light a part can be ..... A really good current example are the connecting rods on the new 111-inch Polaris/Indian engine. They are not the pig-iron of the past, but rather very carefully engineered, powder-forged beryllium steel parts that are as strong as they need to be for the demands of the engine ..... and they are LIGHT, man! They put me in the mind of the Sportsman rods that I used to build the stock car engine with. They were about half the weight of a pig-iron Chev-uh-LAY rod - and just as strong. They'd handle about 14:1 compression and 8800rpm's ...... with a nodular iron crank that was 35 lbs. lighter than a forged one. Rev quick? You bet! You'd ping the rev limiter faster than you could pin and release the throttle at the carb. The old BSA was close ....... EVERYTHING in that engine went on a serious diet! Hahaha! Grindin's cheap .... PARTS are expensive ......
Piston installed, rings in place. notice the Ring gaps.
Where's my Ring compressor !!....... All fired up now Cuz Piston installed, rings in place. notice the Ring gaps. Piston and cylinder get lubbered up.....
And slide it on there. I like to use a 4" hose clamp to compress the rings.... Install the studs and torque 'em down.
Ignorance (mine) in the house here: Are those typical gaps? Seems like a big opening for the gasses and forces of combustion to leak out - but obviously it must work...
@GHG...man you guys are geniuses.....you make it look easy.....
Matt - the gaps are measured in the bore. The way they appear on the slug when it's out of the hole has nothing to do with the finished install .... they'll squish right down in there! Hahaha!
ring gaps should NEVER be on the thrust side of the piston.