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techtalk:ref:engmech01s [2019/05/21 21:57] hippysmack [Windage Tray / Flywheel Scraper] |
techtalk:ref:engmech01s [2019/05/21 22:19] hippysmack [Windage Tray / Flywheel Scraper] |
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| ====== REF: Engine Mechanicals - Sub-01S ====== | ====== REF: Engine Mechanicals - Sub-01S ====== | ||
| ====== Windage Tray / Flywheel Scraper ====== | ====== Windage Tray / Flywheel Scraper ====== | ||
| - | These are in two separate pieces. ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=203160))\\ | + | These are in two separate pieces. ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=203160)) \\ |
| The scraper peels the oil off the flywheels and sends it down under the windage tray. \\ | The scraper peels the oil off the flywheels and sends it down under the windage tray. \\ | ||
| The windage tray isolates the oil under the flywheels so that windage from the flywheels doesn't kick it back up again. \\ | The windage tray isolates the oil under the flywheels so that windage from the flywheels doesn't kick it back up again. \\ | ||
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| Takes a little trial and error, bending, filing, checking, repeat. \\ | Takes a little trial and error, bending, filing, checking, repeat. \\ | ||
| - | | XL engine flywheel scraper ((photo by aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=203160)) | S&S engine w/ built in flywheel scraper ((photo by aswracing http://xlforum.net/forums/showthread.php?t=59421&page=28)) | | + | There's some drilling and fitting and filing work to install it, but it's not difficult. \\ |
| - | |{{:techtalk:ref:engmech:flywheel_scraper_by_aswracing.jpg?direct&300|}}|{{:techtalk:evo:oil:ss_wet_sumping_fix_by_aswracing.jpg?direct&300|}}| | + | You could make one yourself if you want, but the kit saves time and trouble. \\ |
| + | When installing this mod, make sure you put some sealer of some kind on the fasteners that pass through into the transmission area. \\ | ||
| + | Otherwise oil will seep through and fill your primary. \\ | ||
| + | | XL engine flywheel scraper ((photo by aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=203160)) | | ||
| + | |{{:techtalk:ref:engmech:flywheel_scraper_by_aswracing.jpg?direct&300|}}| | ||
| + | |||
| + | Here's how it's done on S&S cases. \\ | ||
| + | Notice how it has a scraper built right into the cases, that peels oil off. \\ | ||
| + | It then goes through a reed valve to the chamber below, where the scavenge inlet resides. \\ | ||
| + | The advantage to this method is that the reed valve prevents any vacuum (from the pistons going up) from being seen at the scavenge inlet. \\ | ||
| + | Putting vacuum on the scavenge inlet plays hell with scavenging. \\ | ||
| + | We never see wet-sumping issues with this setup the way we do on stock (XL) case motors. ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=203160)) \\ | ||
| + | |||
| + | | S&S engine w/ built in flywheel scraper ((photo by aswracing http://xlforum.net/forums/showthread.php?t=59421&page=28)) | | ||
| + | |{{:techtalk:evo:oil:ss_wet_sumping_fix_by_aswracing.jpg?direct&300|}}| | ||
| \\ | \\ | ||
