Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision Both sides next revision
techtalk:evo:oil03h [2018/12/21 19:15]
hippysmack [Stuck Cover Gasket]
techtalk:evo:oil03h [2018/12/21 21:00]
hippysmack [Disassembly]
Line 126: Line 126:
  
   * Two small drivers were used here (1 to keep the ring from spinning, 1 to raise an end out of the groove in the gearshaft).   * Two small drivers were used here (1 to keep the ring from spinning, 1 to raise an end out of the groove in the gearshaft).
-  ​* The 1st screwdriver can be pushed into the slot in the gerotor to keep the ring from spinning. +    ​* The 1st screwdriver can be pushed into the slot in the gerotor to keep the ring from spinning. 
-  * This will allow you to pick and out on one end and then switch back and forth between the two from there.+    * This will allow you to pick and out on one end and then switch back and forth between the two from there
 +  * Remove the retainer clip. 
 +  * Then pull out the inner plate.
  
 |{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_8_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_9_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_10_by_hippysmack.jpg?​direct&​300|}}| |{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_8_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_9_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_10_by_hippysmack.jpg?​direct&​300|}}|
 +
 +  * Inspect the roll pin in the pump body for straightness and damage.
 +  * The return gerotors are also normally '​sandwiched'​ between the inner plate and the pump body.
 +    * Turn the pump over and dump them out enough to get your fingers on them. \\ (being careful not to loose the second pin in the gearshaft)
 +  * Inspect the area at the pump bore where the pin contacts it for damage. \\
 +    * Also, make sure the pin is sitting on the outside of the bore surface instead of inside the bore. \\
 +  * The second pin holds and keeps the gearshaft from coming out.
 +    * Use a pair of needle nose pliers to remove it from the gearshaft.
 +    * Hold the gearshaft with the other hand to keep it from falling when pulling this pin.
 +    * Else, it could fall out and damage the teeth on the gear.
 +  * Inspect the return gerotors and their mating surface in the pump body for scratches / damage. \\
  
 |{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_11_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_12_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_13_by_hippysmack.jpg?​direct&​300|}}| |{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_11_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_12_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_13_by_hippysmack.jpg?​direct&​300|}}|
 +
 +
 +  * Remove the gearshaft and set it in a safe place to protect the gear teeth.
 +  * Clean all parts with solvent (brake cleaner works well).
 +  * With the parts spread out you now can now do further inspection on areas noticed while disassembling.
  
 |{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_16_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_17_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_14_by_hippysmack.jpg?​direct&​300|}}| |{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_16_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_17_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86-90_oil_pump_disassembly_14_by_hippysmack.jpg?​direct&​300|}}|