Can someone please explain IN DETAIL how synchronizers and blocker rings make the rpms of the collar and engaging gear the same? When you shift up why do the rpms decrease? Is it because it is a heavier load on the engine? Why do the rpms of the rpms increase when you shift down? Is it beacuse it is a lighter load on the engine? Can someone please answer this IN DETAIL. I have been searching for months.
2007-06-26 10:17:46 · 1 answers · asked by 1999 Nissan Skyline GTR Vspec 5 in Cars & Transportation ➔ Maintenance & Repairs
Synchro's and blocker rings help guide the two meshing gears together or "synchronize"--hence the name and are free wheeling so they can slip a little whereas the gears are fixed to shafts--basically, they are wear items--- rather than grinding the teeth off the gears which are much more expensive to replace.
RPM's do down when upshifting because of the gearing difference and they go up when downshifting for the same reason----if the vehicle is travelling at a certain speed and you engage a different gear, when you let out the clutch, the coupling between the engine and trans is resumed and the engine now has to match the new gear ratio you shifted into.
2007-06-26 10:55:56 · answer #1 · answered by paul h 7 · 0⤊ 0⤋