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techtalk:evo:carb04 [2019/03/22 03:23] ixl2relax [Gaskets] |
techtalk:evo:carb04 [2021/03/31 22:42] ixl2relax [Gaskets] |
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| ===== Gaskets ===== | ===== Gaskets ===== | ||
| - | |Cometic (bottom) versus HD (top) exhaust gasket comparison ((photo by Hippysmack))| | + | |
| - | |{{:techtalk:evo:carb:cometic_vs_hd_exhaust_gasket_by_hippysmack.jpg?direct&400|}}| | + | There is a Jims (#788) Exhaust Seal Installation Tool: ([[techtalk:ref:tools167#jims_788_exhaust_seal_installation_tool|Sportsterpedia Tool Section for Jims #788]]) |
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| + | | Stock HD Exhaust Port Gasket (65324-83B)\\ \\ Notice that the gasket is tapered.\\ Tapered side should face out toward pipes. | {{:techtalk:evo:carb:exhaust-gasket-hd-65324-83b.jpg?direct&300|}} | | ||
| + | | Cometic (bottom) versus HD (top) exhaust gasket comparison. ((photo by Hippysmack)) | {{:techtalk:evo:carb:exhaust-gasket-cometic_vs_hd_by_hippysmack.jpg?direct&300|}} | | ||
| + | | Scremin Eagle Exhaust Port Gasket (17048-98)\\ \\ Notice that the gasket is squared off. | {{:techtalk:evo:carb:exhaust-gasket-se-17048-98.jpg?direct&300|}} | | ||
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| - | ===== Exhaust Pipes & Cams - Power or Reversion ===== | + | ====== Exhaust Pipes & Cams - Power or Reversion ====== |
| All exhaust systems have harmonic pressure waves passing down and up the pipes. These waves are initiated by the operation of the exhaust valves. The waves move back and forth, with new waves combining or competing with the existing waves in the exhaust system, to either help move the exhausted mixture out of the pipes or back toward the cylinder. In a complicated way, the rpm of the engine is creating a certain frequency of new waves while the length and shape of the exhaust system is reflecting those waves at its own frequency. | All exhaust systems have harmonic pressure waves passing down and up the pipes. These waves are initiated by the operation of the exhaust valves. The waves move back and forth, with new waves combining or competing with the existing waves in the exhaust system, to either help move the exhausted mixture out of the pipes or back toward the cylinder. In a complicated way, the rpm of the engine is creating a certain frequency of new waves while the length and shape of the exhaust system is reflecting those waves at its own frequency. | ||
