TROUBLESHOOTING   A   MANUAL   TRANSMISSION—CONTINUED Problem Transmission sticks in gear— Continued Slips  out  of  gear Transmission  leaks  oil Possible Cause Sliding gears tight on shaft splines Shift linkage out of adjustment Gear loose on shaft Gear teeth worn Excessive end play in gears Lack of spring tension on shift lever detent Badly worn transmission bearings Oil level too high Damaged gaskets Oil seal damaged or installed improperly Oil throw rings damaged, improperly installed, or missing Corrective  Action Clean splines or replace shaft or gears Adjust Replace shaft or gear Replace Replace Install  new  spring Replace Drain to proper level Install  new  gaskets Install  new  seals Install  new  oil  throw  rings  properly Many  problems  that  seem  to  be  caused  by  the transmission  are  caused  by  clutch,  linkage,  or  drive line problems. Keep this in mind before removing and disassembling  a  transmission. 6. Remove any cross members or supports. 7.   Support  the  transmission  and  engine  with  jacks. Operate the jack on the engine to take the weight off the transmission. Be careful not to crush the TRANSMISSION   OVERHAUL oil pan. CAUTION Because   of   the   variations   in   construction   of transmissions,  always  refer  to  the  manufacturer’s service manual for proper procedures in the removal, disassembly, repair, assembly, and installation. These operations   vary   from   6   to   8   hours,   depending   on transmission  type  and  vehicle  manufacturer. The basic removal procedures are as follows: Never  let  the  engine  hang  suspended  by only the front motor mounts. 8.  Depending  upon  what  is  recommended  by  the service  manual,  either  remove  the  transmission- to-clutch cover bolts or the bolts going into the engine from the clutch cover. 1. Unscrew the transmission drain plug and drain the oil. 9. Slide the transmission straight back, holding it in alignment with the engine. You may have to 2. Remove the drive shaft and install a plastic cap over the end of the transmission shaft. 3.  Disconnect  the  transmission  linkage  at  the transmission. 4.   Unbolt and remove the speedometer cable from the extension housing. 5. Remove all electrical wires leading to switches on the transmission. wiggle the transmission slightly to free it from the  engine. Once the transmission has been removed from the engine,  clean  the  outside  and  place  it  on  your workbench.  Teardown  procedures  will  vary  from  one transmission  to  another.  Always  consult  the  service manual  for  the  type  of  transmission  you  are  working on.  If  improper  disassembly  methods  are  used,  major part damage could possibly result. 4-23