Transaxle Assemble
Tools Required
- 78-41-067 Sleeve, Inner Drive. See Special Tools and Equipment .
- 83-90-114 Sleeve. See Special Tools and Equipment .
- 87-90-867 Input Shaft Bearing Ring. See Special Tools and Equipment .
- 87-91-204 Output Shaft Bearing Race Sleeve. See Special Tools and Equipment .
- 87-91-261 Output Shaft Remover. See Special Tools and Equipment .
- 87-91-311 Sleeve, Bearing Driver Shaft. See Special Tools and Equipment .
- 87-91-428 Driver. See Special Tools and Equipment .
- 87-92-053 Companion Flange. See Special Tools and Equipment .
- 87-92-061 Output Shaft Nut Socket. See Special Tools and Equipment .
- 87-92-095 Kilogram Weight. See Special Tools and Equipment .
- 87-92-103 Output Shaft Assembly Tool. See Special Tools and Equipment .
- 87-92-137 Milled Bearing Race. See Special Tools and Equipment .
- 87-92-202 Output Shaft Bearing Race Sleeve. See Special Tools and Equipment .
- J 43707 Transmission Support Fixture. See Special Tools and Equipment .
- J 44362 Input Shaft Support. See Special Tools and Equipment .
- J 7754-C Inch Pound Torque Wrench. See Special Tools and Equipment .
- SA9179NE Dial Indicator. See Special Tools and Equipment .
- Mount the clutch housing on the J 43707 , if necessary. See Special Tools and Equipment .
- Install differential assembly into clutch housing.
- Make sure the output shaft oil feed tube is staked in place in the clutch housing prior to installing the output shaft.
- Install the output shaft.
- Install the output shaft into the clutch housing bore.
- Lubricate the bearing.
- Install the output shaft bearing race by tapping the race with a plastic hammer to start in the bore.
- Install the bearing retainer.
- Tap down the bearing race using the retainer and tools. The 87-92-202 and the 87-91-204 as shown. See Special Tools and Equipment .
IMPORTANT: Install the bearing retainer plate to ensure correct depth of the bearing race. - Apply LOCTITE 242® Threadlocker P/N 21485277 to 3 middle output shaft bearing retainer bolts and install.
Tighten: Tighten the output shaft bearing retainer bolts (inner) to 45 N.m (18 lb ft).
- Apply LOCTITE 242® Threadlocker P/N 21485277 to 1 outer output shaft bearing retainer bolt and install.
Tighten: Tighten the output shaft bearing retainer bolts (outer) to 24 N.m (18 lb ft).
- Install an object on top of the main shaft bearing retainer so that there will be a 15 mm (0.6 in) clearance between the bearing retainer and the 1st/2nd driven gear assembly when it is installed.
- Install the 1st/2nd driven gear assembly, held together with the 87-92-103 on the output shaft. See Special Tools and Equipment .
- Install the 3rd driven gear and spacer sleeve on the output shaft.
- Lubricate the input shaft bearing and install the input shaft into the clutch housing. Remove the object holding up the 1st/2nd driven gear assembly from under the 1st driven gear, and install a plastic tie as shown to hold the input and output shaft together.
- Carefully tap down the output shaft gears to make sure that the gears are against the surface of the clutch housing. This can be done with the 87-91-204 and the 87-90-867 . See Special Tools and Equipment .
- Install the new crush sleeve and 4th driven gear.
- Install the 87-91-204 on top of the 4th driven gear and tap down the 4th driven gear until contact is made with the crush sleeve. See Special Tools and Equipment .
- Remove the plastic ties and the 87-91-204 . See Special Tools and Equipment .
- Lift the input shaft slightly and install the reverse idler gear shaft assembly. The shaft lubrication hole should be facing the lube passage in the clutch housing.
- Install the shift linkage mechanism into the clutch housing.
- Put the 1st/2nd synchronizer sleeve on the output shaft in the 2nd gear position.
- Put the 3rd/4th synchronizer sleeve on the input shaft in the 4th gear position.
- Insert the 1st/2nd and 3rd/4th shift forks into the synchronizer sleeves and push the mechanism into place.
- Install the locating sleeves and loosely install the outboard shift linkage bolt.
- Install the reverse shift lever assembly. Loosely install the longer mounting bolt. Apply LOCTITE 592® Thread Sealant P/N 1485278, or equivalent, on shorter bolt.
- Install the shorter reverse shift lever bolt.
- Tighten the reverse shift lever assembly bolts and shift linkage bolt.
Tighten: Tighten the bolts to 24 N.m (18 lb ft).
- Install the reverse gear fork to reverse gear synchronizer sleeve. Make sure the fork is in position on the reverse shift lever and install the reverse gear fork shaft.
- Engage the reverse gear using the shift linkage assembly to check for full engagement of the reverse.
- Lightly lubricate the shift control shaft with grease and insert through the seal in the clutch housing.
- Insert the shift control shaft through the shaft block. Put the shaft block in position and install the bolt.
Tighten: Tighten the transaxle shift control shaft block to 24 N.m (18 lb ft).
- Shift the transaxle into all gear positions with the shift control shaft to check for proper operation. Also check the shift interlocking feature by trying to engage the 1st and reverse gears at the same time. This should be impossible.
- Apply a bead of LOCTITE 515® gasket eliminator P/N 21005993 or equivalent, down the center of the mating flange on the clutch housing. The bead should be 1-3 mm (0.039-0.118 in) wide.
- Check for proper alignment of the reverse idler shaft support bracket to the threaded hole in shaft using the bolt. The bracket bolt has to be installed after the transaxle case is installed.
- Shift the transaxle into 3rd gear using the shift lever in order to prevent shift mechanism shafts from moving during case installation.
- Remove bolt from reverse idler shaft and bracket.
- Install the transaxle case onto the clutch housing and hand start 2 case-to-clutch housing bolts.
- Tap up the case to clutch housing alignment sleeves.
- Loosely install the reverse idler gear shaft bracket bolt.
- Install and tighten all case-to-clutch housing bolts in a criss-cross pattern.
Tighten: Tighten the transaxle case-to-clutch housing bolts to 24 N.m (18 lb ft).
- Install and tighten the reverse idler shaft bolt. Check the condition of the O-ring and replace if necessary.
Tighten: Tighten the reverse idler gear shaft bracket bolt to 24 N.m (18 lb ft).
- Tighten the reverse idler gear shaft bracket bolt.
Tighten: Tighten the reverse idler gear shaft bracket bolt to 24 N.m (18 lb ft).
- Lubricate and install the output shaft bearing using the 87-91-261 . See Special Tools and Equipment . Tighten the 87-91-261 until a solid stop is felt. See Special Tools and Equipment . Do not compress the sleeve.
- Install the 5th driven gear onto the output shaft. Tap down with the 78-41-067 far enough to allow installation of the 87-91-261 . See Special Tools and Equipment .
- Install the 87-91-261 and tighten the tool until the 5th driven gear is against the output shaft bearing. See Special Tools and Equipment . Install a new output shaft nut, but do not tighten.
- Install the 87-91-428 to the input shaft and install the SA9179NE , or equivalent, on the input shaft bearing inner race. Attach a drill to the 87-91-428 and spin the transaxle to seat the bearings. See Special Tools and Equipment . Turn the transaxle input shaft about 20 revolutions while pushing and pulling on the drill. While turning, measure the axial play on the dial indicator. Axial play should be between 0.09-0.15 mm (0.004-0.0006 in).
- Adjust axial play as needed by adding or removing shims under the input shaft bearing retainer.
- More shims equals decreased preload.
- Less shims equals increased preload.
- Shims are available in 0.10 mm, 0.15 mm, and 0.30 mm thicknesses.
If axial play adjustment is not necessary, tighten the input shaft bearing retainer bolts evenly.
Tighten: Tighten the input shaft bearing retainer bolts to 38 N.m (28 lb ft).
- Lubricate and install the 5th drive gear bearing, 5th drive gear, 5th gear blocking ring, and blocking ring spring.
- Install the J 44362 on the transaxle as shown. See Special Tools and Equipment . Turn the center wingheaded bolt until contact is made with the input shaft, then turn an additional quarter to a half turn.
- Carefully tap down the 5th synchronizer hub onto the input shaft splines using the 87-91-311 and a hammer. See Special Tools and Equipment .
- Install the 5th gear synchronizer sleeve. Reference the sleeve alignment mark made during disassembly.
- Loosely install the output shaft nut.
- Install the SA9179NE
, or equivalent, on top of the 5th driven gear. Engage the 1st gear on the transaxle and engage the 5th gear by pressing down the 5th gear synchronizer sleeve. Install a bolt in the case as shown so that you are not prying against the rear cover sealing surface. Measure the output shaft end play by prying up on the 5th driven gear and watching the dial indicator.
Tighten: Tighten the output shaft nut until end play is between 0.06-0.05 mm (0.002-0.002 in).
- Disengage the 1st gear and remove the 5th gear synchronizer sleeve.
- Check and adjust the preload of the differential bearings as follows:
- Install the 87-92-137 in place of the left differential bearing race. See Special Tools and Equipment .
- Install about 2 mm of shims on top of the ground bearing race.
- Remove the O-ring from the differential bearing retainer and install without any fasteners.
- Measure the differential bearing pre-load.
- Place the 87-92-095 on top of the differential bearing retainer. See Special Tools and Equipment .
- Install the 87-92-053 on the output shaft. See Special Tools and Equipment .
- Use a drill to rotate the differential at least 20 revolutions.
- Use a feeler gage and measure between the transaxle case and differential bearing retainer in 3 different places.
- Take the average of the 3 readings and adjust the shims so that the average measurement corresponds to the following readings:
- The transaxle condition of the old clutch housing, if greater than 49,900 kilometers (31,000 miles) with old differential bearings, has a nominal value of 0.2 mm (0.008 in).
- The transaxle condition of the old clutch housing, if greater than 49,900 kilometers (31,000 miles) with NEW differential bearings, has a nominal value of 0.3 mm (0.012 in).
- The transaxle condition of the new clutch housing with new differential bearings has a nominal value of 0.35 mm (0.014 in).
- Adjust the shims using the following information:
- More shims equals increased preload.
- Less shims equals decreased preload.
- Shims are available in 0.10 mm, 0.15 mm, 0.30 mm, and 0.5 mm thicknesses.
- Remove the 10 kg weight, differential bearing retainer, and 87-92-137 . See Special Tools and Equipment .
- Install the differential bearing retainer.
- Install the differential bearing race and tap down using the 83-90-114 . See Special Tools and Equipment .
- Install the shim pack determined in the last step.
- Lubricate the O-ring and install on the differential bearing retainer.
- Install the differential bearing retainer.
- Tighten the retainer bolts until the retainer is 0.15 mm (0.006 in) from the transaxle case.
- Turn the transaxle to the horizontal, in car, position.
- Measure the input shaft bearing pre-load.
- Remove tool 87-91-428 from the hose. See Special Tools and Equipment .
- Install a 3/8 in. drive - 16 mm (0.6 in) deep well socket into one end of the hose.
- Insert the other end over the input shaft as shown.
- Install the J 7754-C , or equivalent, to the socket and rotate clockwise several rotations at an even speed. See Special Tools and Equipment .
- Read the average value on the torque wrench during rotations. The torque should be between 0.1-0.3 N.m (1-3 lb in).
If the torque is higher or varies greatly while rotating the input shaft, there may be contamination in the bearings. The transaxle should be disassembled to determine the cause of excessive torque.
- Measure the output shaft end play.
- Turn the transaxle back to the vertical position.
- Place the dial indicator tip on the 5th driven gear as shown.
- Install the 87-92-053 on the output shaft. See Special Tools and Equipment .
- Turn the output shaft several revolutions to seat the bearings.
- Press down on the drill and turn the output shaft for 20 revolutions.
- Zero the dial indicator.
- Pull up on the drill and turn for another 20 revolutions.
- Take a measurement when the reading stabilizes. This output shaft end play measurement will be used in tightening the input shaft nut in a later step. Convert the measurement to millimeters if necessary.
- Remove all tools.
- Engage the 1st gear on the transaxle and engage the 5th gear by pressing down the 5th gear synchronizer sleeve.
- Install the 5th gear synchronizer sleeve.
- Install the 87-92-061 on the output shaft nut. See Special Tools and Equipment .
- Calculate the number of line that the 87-92-061
must be turned to tighten the output shaft nut by doing the following:
- Add the output shaft end play value that was determined in a previous step with the nominal value from the list below. Ensure that the output shaft end play is in millimeters or has been converted to millimeters.
- Multiply the sum found in the previous step by 100.
- With a marker, place a mark on the gear tooth corresponding to the line on the socket that matches the number calculated. This is the number of lines that the 87-92-061
must be turned. See Special Tools and Equipment .
Example: The output shaft end play reading found previously is 0.38 mm + nominal value 0.08 mm = 0.46 mm. Multiply 0.46 by 100 = 46. This is the number of lines that the 87-92-061 must be turned. See Special Tools and Equipment .
- The transaxle condition of the old clutch housing, if greater than 49 900 kilometers (31,000 miles) with the old differential bearing greater than 49 900 kilometers (31,000 miles), has a nominal value of 0 mm (0 in).
- The transaxle condition of the old clutch housing, if less than 49 900 kilometers (31,000 miles) with the old output shaft bearing less than 49 900 kilometers (31,000 miles), has a nominal value of 0.03 mm (0.0012 in).
- The transaxle condition of the old clutch housing, if less than 49 900 kilometers (31,000 miles) with a new output shaft bearing, has a nominal value of 0.8 mm (0.003 in).
- The transaxle condition of the new clutch housing with a new output shaft has a nominal value of 0.15 mm (0.006 in).
- Tighten the output shaft nut in 2-3 stages until the zero (0) on the socket is at the marked gear tooth.
- Before taking a more precise measurement of the output shaft bearing preload, make sure the following condition are true:
- The input shaft bearing end play is 0.09-0.15 mm (0.003-0.006 in).
- The differential bearing retainer is installed but not tight. The end play is 0.15 mm (0.006 in).
- Turn the transaxle to the horizontal, in car, position. Disengage the 1st gear and remove the 5th gear synchronizer sleeve.
- Check the input shaft and output shaft bearing preload.
- Ensure that the transaxle is in Neutral.
- Install the J 7754-C , or equivalent, on the output shaft nut. See Special Tools and Equipment .
- Rotate the wrench clockwise at an even speed.
- Read the average value during rotation.
- Subtract the average value from the input shaft, taken in step 43, from the average value of the output shaft. The calculated preload is the measurement of the output shafts turning torque, normally 0.75-0.25 N.m. (6.75-2.25 lb in).
Example:
Output Shaft Reading: 1.10 N.m (10 lb in)
Input Shaft Reading: 0.30 N.m (2.7 lb in)
Preload: 1.10-0.30 = 0.80 N.m (7.2 lb in)
If the average torque is less than 0.5 N.m (4.5 lb in)
Cause: Bearings are not sufficiently tight.
Correction: Tighten the output shaft nut by 2 lines on the 87-92-061 . See Special Tools and Equipment . Take another measurement. Repeat the process until the correct torque is reached.
If the average torque varies greatly:
Cause: Contamination in the bearings or faulty synchronizer blocking rings.
Correction: Disassemble the transaxle, inspect the components, and repair as necessary.
If the average torque is higher than 1.0 N.m (9 lb in)
Cause: Bearings are too tight or contamination in the bearings.
Correction: Install a new crush sleeve in the transaxle and reset the bearing preloads.
- Lock the output shaft nut using a chisel and a hammer.
- Turn the transaxle to the vertical position. Put the transaxle in 3rd gear.
- Install the 5th gear fork and synchronizer sleeve together. Reference the sleeve alignment mark made during disassembly.
- Install a new synchronizer hub snap ring.
- Install a new 5th gear fork retaining pin.
- Tighten the differential bearing retainer bolts.
Tighten: Tighten the differential bearing retainer-to-transaxle bolts to 24 N.m (18 lb ft).
- Clean the rear cover gasket surfaces. Surfaces must be clean and dry.
- Install the rear cover gasket.
- Install the rear cover and bolts and torque using a criss-cross pattern.
Tighten: Tighten the rear cover-to-transaxle bolts to 24 N.m (18 lb ft).
- Install the back-up lamp switch with a new gasket.
Tighten: Tighten the back-up lamp switch to 24 N.m (18 lb ft).
- Ensure that the magnet is in the transaxle drain plug (1).
- Clean and apply thread sealant P/N 21485278 to the transaxle drain plug (1) and fill plug (2).
- Install the transaxle drain plug (1) and fill plug (2).
Tighten: Tighten the transaxle drain plug to 50 N.m (37 lb in).
- Put grease P/N 21005995 between the lips of the input shaft seal.
- Install the slave cylinder. Use LOCTITE 592® P/N 21485278 thread sealant on the screws
Tighten: Tighten the slave cylinder fasteners to 10 N.m (7 lb ft).
- Install the clutch actuator cylinder pipe and pipe sleeve.
IMPORTANT:
In all work involving disassembly of transaxle, a new output shaft nut and crush sleeve must be installed during reassembly.
IMPORTANT:
Lubricate all rotating parts and bearings with manual transaxle lubricant P/N 21018899 during assembly.
NOTE:
Refer to FASTENER NOTIC
in Cautions and Notices.
IMPORTANT:
There must be a 15 mm (0.6 in) clearance between the 1st driven gear and the clutch housing to be able to install the input shaft. This can be done by putting the output shaft nut between the clutch housing and the 1st driven gear.
IMPORTANT:
The third driven gear must be installed in the same orientation as it was removed to avoid noise concerns.
IMPORTANT:
A new output shaft crush sleeve must be used.
IMPORTANT:
The 4th driven gear should be installed with the machined groove facing down, towards 3rd gear.
IMPORTANT:
Do not compress the crush sleeve when installing the 4th driven gear. Any compression of the sleeve done other than by tightening the output shaft nut will require disassembly of the transaxle and replacement of the crush sleeve.
IMPORTANT:
Make sure the reverse idler gear shaft lube hole is facing the correct way. Refer to the illustration. If the hole is not facing the correct direction, reposition the shaft before installation.
NOTE:
If thread sealant is not used on the short reverse shift lever assembly bolt, a fluid leak could occur.
IMPORTANT:
The reverse shift lever assembly oil plate should be under the edge of the shift linkage mechanism.
IMPORTANT:
Install the shift control shaft so that the higher section of the bracket faces up.
NOTE:
Care must be taken when applying gasket material to the clutch housing. If any gasket material gets in the transaxle filter vent, noted by the arrow in the illustration, it will plug the vent and cause transaxle oil leaks.
IMPORTANT:
Use the shift lever to shift into 3rd gear. Do not use synchronizer.
NOTE:
Do not compress the crush sleeve when installing the output shaft bearing. Any compression of the sleeve done other than by tightening the output shaft nut will require disassembly of the transaxle and replacement of the crush sleeve.
IMPORTANT:
Ensure that the 3 machine cutouts on the 5th driven gear are facing away from the bearing.
IMPORTANT:
Carefully tap the input shaft with a plastic hammer from the engine side so the input shaft bearing race is against the input shaft bearing retainer.
IMPORTANT:
If a dial indicator with a magnetic base is used, it will not work with an aluminum case. Locking C-clamp pliers can be used to hold the indicator base to the transaxle case.
IMPORTANT:
Make sure that the center wing-headed bolt is backed out completely before installing the support tool.
IMPORTANT:
The tangs on the blocking rings must fit in the hub gaps. Ensure that the blocking ring spring is engaged on the blocking ring and does not get pinched between the hub and the blocking ring.
IMPORTANT:
The 5th gear synchronizer sleeve can only be placed on the hub when the tall teeth on the sleeve are aligned with the deep tooth grooves on the hub.
IMPORTANT:
Do not pry under the gear teeth. Make sure the screwdriver is as far past the gear teeth as possible.
IMPORTANT:
Make sure the drill is spinning in a clockwise direction. The 87-92-053
will unravel if the drill is spinning in the wrong direction. See Special Tools and Equipment .
NOTE:
Do not forget to remove the milled bearing race. Leaving it in will damage the transaxle.
IMPORTANT:
The differential bearing retainer will not be torqued to specification until the final output shaft preload is set. If the differential bearing retainer is torqued down at this point, it will interfere with the final output shaft measurements.
IMPORTANT:
Make sure that the transaxle is in NEUTRAL.
IMPORTANT:
Make sure the drill is spinning in a clockwise direction. The 87-92-053
will unravel if the drill is spinning in the wrong direction. See Special Tools and Equipment .
IMPORTANT:
Make sure the 87-92-053
does not damage the dial indicator when spinning the output shaft. See Special Tools and Equipment .
IMPORTANT:
The measurement taken in this step must be in millimeters. If the measurement is in inches, multiply it by 25.4 to convert to millimeters.
IMPORTANT:
The 5th gear fork and synchronizer sleeve together can only be placed on the hub when the tall teeth on the sleeve are aligned with the deep tooth grooves on the hub.
NOTE:
Thread sealant must be used on the slave cylinder bolts to prevent a transaxle oil leak.