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Page Title: Repair
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TM10-4320-316-14 c.  Repair.  Repair is limited to the replacement of defective parts as described in the following steps. (1)  Replace lube oil pump if the OD of the outer rotor is less than 1.138 inches (28.9 mm). (2)  Replace crankcase cover if the housing ID is greater than 1.149 inches (29.18 mm). (3)  Replace the lube oil pump if the clearance between housing ID and outer rotor OD is greater than 0.011 inch (0.280 mm). (4)  Replace lube oil pump if the outer and inner rotor width is less than 0.311 inch (7.9 mm). (5)  Replace crankcase cover if the housing depth is greater than 0.319 inch (8.1 mm). (6)  Replace lube oil pump if the clearance between the inner and outer rotor is less than 0.010 inch (0.25 mm). d.  Installation. (1)  Lube Oil Pump. (a)  (Refer to Figure 6-7).  Insert lubricating oil pump assembly (1) from the outside of the crankcase cover (2).  Coat the rotor with oil before installing the cover. (b)  Insert drive pin (3) into the lubricating oil pump shaft (4). (c)  Insert spindle (5) into the weights (6) on the governor gear assembly (7), then push the governor gear assembly  (7)  onto  the  oil  pump  shaft  (4).    Ensure  that  gear  is  firmly  engaged  onto  pin  (3).  (d)  (Refer  to  Figure  6-6). Install new O-ring (3) onto crankcase cover and secure oil pump cover (2) with 3 bolts (1). (2)  Governor Assembly.  (Refer to Figure 6-5). (a)  Install fuel limiting adjustment (10) into crankcase. (b)  Install nut (9) onto fuel limiting adjustment (10). (c)  Install needle bearing (7) into cylinder block. (d)  Insert shaft (4) into governor control arm (3) and lock into position with taper pin (5). (e)  Install governor control arm (3), shaft (4), and washer (8) into needle bearing in engine from the inside. (f)  Insert thrust bushing (6) onto shaft (4) in cylinder block. (g)  Install control arm lever (2) onto shaft (4) and insert taper pin (1) into shaft. (h)  After engine has been reassembled, adjust engine speed control device per paragraph 5-9. 6-15

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