Mirage L4-1597cc 1.6L SOHC Turbo (1985)
Shift Linkage: Technical Service Bulletins
M/T - KM 200 Change In Reverse Gear and Linkage
SUBJECT:
CHANGE IN REVERSE GEAR AND LINKAGE IN KM200 SERIES TRANSAXLES
NO:
TSB-89-21-007
DATE:
April, 1989
MODEL Sigma V6, Galant, Mirage
FIGURE 1
PURPOSE
The KM200 series manual transaxles have received several modifications to improve reverse shift quailty. If you are performing reverse gear repair work
or observe a condition listed below on an early production vehicle, the improved parts mentioned in this bulletin should be installed.
DETAILS OF CHANGE
Seven parts of the reverse gear mechanism received improvement. The dates the changes took effect in production are given in parentheses. The numbers
in bold match those in figure 1.
^
To improve resistance to reverse disengagement under high engine RPMs:
1.
The restrict ball unit has a higher spring tension (July 1988).
2.
To counteract the higher tension, the 3-4 and 5-R (on five speed) shift rail interlock plunger grooves are now chamfered (July 1988).
^
To improve shift lever "feel" during reverse gear engagement:
3.
The reverse idler gear has more travel on the reverse idler gear shaft. This was done by changing the pivot point and arm length of the reverse
shift lever (July 1988). The lever has also been reinforced (December 1988).
4.
The reverse shift lever shoe has beveled back sides (December 1988).
5.
The reverse shift lever mounting bolt has been lengthened (December 1988).
6.
The idler gear is now 1.4mm wider (July 1988).
7.
The input shaft bearing retainer has been reinforced (December 1988).
