Operation CHARM: Car repair manuals for everyone.

Powerflow

Powerflow in Neutral

Powerflow In Neutral:





^ The input gear drives the countershaft.
^ The countershaft gears drive the 1st, 2nd and 3rd gears on the output shaft.
^ All the synchronizers are disengaged (centered).
^ No gears are engaged to the output shaft.
^ The output shaft is not engaged to the input shaft.

Powerflow in 1st Gear

Powerflow in 1st Gear:





^ The input gear drives the countershaft.
^ The countershaft gears drive the 1st, 2nd, 3rd and 5th gears on the output shaft.
^ The 1-2 synchronizer hub is splined to the output shaft.
^ When the synchronizer sleeve is shifted rearward, 1st, gear is locked to the output shaft.

Powerflow in 2nd Gear

Powerflow in 2nd Gear:





^ The input gear drives the countershaft.
^ The countershaft gears drive the 1st, 2nd, 3rd and 5th gears on the output shaft.
^ The 1-2 synchronizer hub is splined to the output shaft.
^ When the synchronizer sleeve is shifted forward, 2nd gear is locked to the output shaft.

Powerflow in 3rd Gear

Powerflow in 3rd Gear:





^ The input gear drives the countershaft.
^ The countershaft gears drive the 1st, 2nd, 3rd and 5th gears on the output shaft.
^ The 3-4 synchronizer hub is splined to the output shaft.
^ When the synchronizer sleeve is shifted rearward, 3rd gear is locked to the output shaft.

Powerflow in 4th Gear

Powerflow in 4th Gear:





^ The input gear drives the countershaft.
^ The countershaft gears drive the 1st, 2nd, 3rd and 5th gears on the output shaft.
^ The 3-4 synchronizer hub is splined to the output shaft, but no gears are engaged to the output shaft.
^ When the synchronizer sleeve is shifted forward, the input shaft is locked to the output shaft through the synchronizer hub.

Powerflow in 5th Gear

Powerflow in 5th Gear:





^ The input gear drives the countershaft.
^ The countershaft gears drive the 1st, 2nd and 3rd gears on the output shaft, and the 5th gear synchronizer.
^ The 5th gear synchronizer hub is splined to the countershaft.
^ When the synchronizer sleeve is shifted forward, the 5th gear is locked to the countershaft.
^ The countershaft 5th gear drives the output shaft 5th gear.

Powerflow in Reverse Gear

Powerflow in Reverse Gear:





^ The input gear drives the countershaft.
^ The 5th-reverse synchronizer hub is splined to the countershaft.
^ The synchronizer hub engages the reverse gear to the countershaft.
^ The countershaft reverse gear drives the reverse idler gear.
^ The reverse idler gear drives the reverse gear on the countershaft, in a REVERSE direction.