General Service For 125/125C, Oil Coder Flushing and End Play Clearance
SUBJECT: General Service Procedure Information 125/125C TransaxleTorque Converter Evaluation
The converter should ONLY be replaced if one of the following conditions exist:
1. Either the front oil pump cover or body are badly scored, which results in cast iron grindings entering the converter and oil circuit. Check for metallic particles in the converter by use of a magnetic probe.
2. Internal converter failure, such as the stator overrun clutch not locking, thrust bearing failure, etc. Such failures are also normally associated with "aluminized" oil in the converter.
3. End play in the converter exceeds 1.2 mm (0.050"). This measurement cannot be estimated, but must be made with tool J-29830 or J-29060.
4. Leaking externally, such as at the hub weld area. A converter that has been in service and, which did not leak, very likely never will.
5. A scored, or otherwise damaged hub, which could cause a front seal failure or front pump bushing failure.
6. A broken, damaged, or even possibly a bad fitting converter pilot, which could cause the converter to either not fit into the crankshaft bore properly, or not be correctly aligned with the crankshaft.
7. The oil cooler leaked, which allowed engine coolant containing antifreeze to enter the transaxle. It will not be necessary to replace converter if contaminated only by water. See Converter Flushing Procedure in the Chassis Service Manual. Observe the "Revision to Converter Flushing Procedure" in the 1982 January Service Guild, page 28.
NOTICE: Antifreeze will attack the "Viton" O-ring seal on the selective spacer and the glue used to bond the clutch material to the pressure plate, which may cause transaxle damage.
The converter should NOT be replaced for one of the following conditions:
1. The oil has an odor, is discolored, and there is no evidence of metal particles. There is no indication that there is internal damage, nor any pump damage. Pour out as much oil as possible from the converter and replace the oil filter in the pan.
2. Damaged threads in one or more of the three converter bolt holes is not a reason for converter replacement. Correct such conditions with the use of a Heli-Coil or its equivalent.
SUBJECT: Oil Cooler Flushing
If metallic particles or coolant have been carried with the fluid throughout the transaxle, the fluid cooler and lines must be flushed. Follow the flushing procedure in the appropriate Chassis Service Manual.
SUBJECT: End Play Clearance - 125C Only
End play settings that are not within specification may cause transaxle damage. The following is a list of end play clearances for 125C transaxles from the applicable chassis service manual.
Input shaft to case cover- 0.10 to 0.84 mm (.004" to 0.33")
Reaction sun gear to input drum - 0.33 to 0.13 mm (.013" to .005")
Reverse clutch housing to Lo race - 0.08 to 1.17 mm (.003" to .046")
Final drive to case - 0.12 to 0.82 mm (.005" to .032") (Late 81 thru 83)
Forward clutch snap ring to backing plate clearance - 1.0 to 1.5 mm (.04" to .07")
Select proper intermediate band apply pin