9000 L4-1985cc 2.0L DOHC (1986)
Synchronizer Ring: Customer Interest
M/T - Jumping Out of 5th Gear
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SUBJECT:
TRANSMISSION JUMPING OUT OF 5TH GEAR ISSUE: 04/89-1144
APPLICATION: 9000 WITH MANUAL TRANSMISSION
A new 5th gear synchromesh sleeve, P/N 87 27 794, has recently been introduced into production (Gearbox C139017-) to help eliminate the problem of
the transmission jumping out of 5th gear under certain driving conditions.
The new sleeve can be identified by looking at the ends of the splines on the outward-facing side of the sleeve. Three of the splines, located between the
master splines, are now chamfered (Figure 1) to allow the synchromesh rollers to exert more force on the sleeve. This extra force will better hold it in
place under varying loads.
This new sleeve can be used in earlier transmissions to correct complaints of jumping out of 5th gear. However, verify first that the complaint is not due
to shifter misadjustment, the shift boot (see S.I. 07/88-1064) or damaged/worn parts.
Replacement of the sleeve can be carried out without removing the transmission from the car. When replacing the sleeve, do not reuse the snap ring on
the input shaft or the old side cover gasket. Use a new snap ring, P/N 87 19 205 and gasket, P/N 87 25
061. Also, if necessary, the fifth gear support plate should be updated using the latest design, P/N 87 25 723 (see S.I. 06/87-969).
Warranty Information:
For warranty claims, use failure coding 47173-78-5-01-01. Labor allowance is Operation No. 47172 (5.1 hours).