FUEL PUMP - CONTINUED
Steps 20 and 21 are for replacement of gear or shaft. If gear or shaft replacement is not
necessary, proceed to step 22. Step 20 is for driven gear and shaft assembly only. Step
21 is typical for both drive and driven gear and shaft assemblies.
Spur gear and idler
Using prussian blue, mark shaft on gear
shaft assembly (4)
pump housing side.
Shaft (5) and
Support gear and, using arbor press and
mandrel, press out shaft.
Lubricate shaft with extreme-pressure
Position shaft in gear and, using arbor
press and mandrel, press shaft into
gear until gear face is 0.680 to 0.690
inch (17.27 to 17.53 mm) from gear
pump housing end of shaft.