Genuine 1989 Nissan 240SX Transmission Assembly

1989 Nissan 240SX Transmission Assembly Parts Questions & Experts Answers

• Q: Why is cleanliness crucial for the overhaul of the manual transmission assembly on the 1989 Nissan 240sx?

  A: Cleanliness is obedience for the regeneration of the manual transmission; all the exterior of the transmission assembly of the manual transmission must be cleaned, preferably by the high pressure washer. Minimizing the amount of dirt that penetrates the internal components is crucial to preserve the good working of the overhaul procedure. During the inspection and when reassembling different components, one must use solvent in cleaning the surfaces and compressed air in removing the solvent and not wiping cloths or rags. Do not use wheel bearing grease; however, seal with new transaxle oil; use unmedicated tap petroleum to lock thrust washers and to ease the seal installation since it does not harm the threads. Solvent should not be used on neoprene seals and thrust washers where such items will again be used. When tightening the bolts into the aluminum components one should either apply a thin coat of clean transmission oil to the threaded parts or apply anti-seize compound to avoid galling. A torque wrench is recommended so that you may not ruin the threads, and internal snap rings should be compressed while the external ones should be expanded so that they may engage tightly when placing the item.