In transmission this week we took apart a manual transmission. We first started by doing a pre-dismantle check to make sure there wasn’t any souvier cracks or damage and wear and tear. I did not see any of these signs and there was nothing missing. We first started by taking of the shell of the gearbox and then removed the external components and got to taking the gears of and the shift forks and levers. We did a visual inspection the gears and we did not find cracks on teeth or warping or bending of gears and they meshing properly with the other gears. We started to do the checks on the books such side clearance with the use of some feeler gauges and checking the baulk rings and so on. Then we started to calculate the gear ratios of the gears by marking one teeth with marker and counting the number of teethes on each gear and then dividing the driven gear to the driver gear. We completed the tasks on the sheet then started to assemble back the gears and the rest of the components.
A manual gear box transmission allows the driver to manually select gears for use in its optimum RPM range. transaxle gearbox incorporates the differential which is in use on fwd cars such as Subaru. The gear stick operates the selector mechanism which incorporates the selector forks and shafts. The detent mechanism holds shafts in place and aligns them properly. The interlock mechanism is different and will stop the selectors from locking into different gears while one is selected than. The driving gears on the input shaft will drive the free spinning gears or so called the driven gears on the shaft that includes the pinion gear. The driven spinning gears movement is slowed down by the baulk rings before the selector forks will lock them into place. When a gear will be selected it will transfer the drive to the pinion gear and out to the crown. From there the movement is tranferred to the wheels.
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