Civic DX Hatchback L4-1590cc 1.6L SOHC MFI (1997)
Synchronizer Hub: Testing and Inspection
1. Inspect gear teeth on all synchro hubs and synchro sleeves for rounded off corners, which indicate wear.
2. Install each synchro hub in its mating synchro sleeve, and check for freedom of movement.
NOTE: If replacement is required, always replace the synchro sleeve and synchro hub as a set.
3. When assembling the synchro sleeve and synchro hub, be sure to match the three sets of longer teeth (120 degrees apart) on the synchro sleeve
with the three sets of deeper grooves in the synchro hub.
CAUTION: Do not install the synchro sleeve with its longer teeth in the synchro hub slots because it will damage the spring ring.