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techtalk:ih:oil03 [2019/06/23 04:33]
hippysmack [Production Oil Pumps]
techtalk:ih:oil03 [2020/05/11 21:04] (current)
hippysmack [Oil Pump Cycle]
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 +===== Production Oil Pumps =====
  
 +  * There are 3 basic pumps & 2 basic plumbing styles ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204))
 +    - Both feed and return are drilled passages in the right crankcase (57-66 all) & (67-69 xlch)
 +    - Only return drilled thru case. feed goes from tank to pump by external hose. (67-69 xlh) & (70-76 all)
 +  * With the correct knowledge any 57-76 pump, or parts of them can be mated to any 57-76 cases. But the combos can get confusing. ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204))
 +  * The stock slot in pre & post -72 pump bodies are .345" ((chevelle of the XLFORUM® http://​xlforum.net/​forums/​showthread.php?​t=989934&​page=2))
 +  * The stock slot in pre -72 pump gear is .375" ((chevelle of the XLFORUM® http://​xlforum.net/​forums/​showthread.php?​t=989934&​page=2))
 +  * The stock slot in post -72 pump gear is .625" ((chevelle of the XLFORUM® http://​xlforum.net/​forums/​showthread.php?​t=989934&​page=2))
  
 On some pump casting bodies you may see an Allen plug in the back of the pump. ((Monte03 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=563241)) \\ On some pump casting bodies you may see an Allen plug in the back of the pump. ((Monte03 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=563241)) \\
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 In 1972 and with the birth of the 1000cc engine, the pump numbers were -72. \\ In 1972 and with the birth of the 1000cc engine, the pump numbers were -72. \\
 It had larger gears and a bigger breather slot. \\ It had larger gears and a bigger breather slot. \\
 +
 +|  Oil Pump on 1967 XLCH ((photos by ss396 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1864035&​highlight=Ironhead+Crankcase+Drain+Plug&​page=4)) ​ |  Oil Pump on 1972 XLH ((photo by deedub97gt of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​page=17&​t=1637849)) ​ | 
 +|{{:​techtalk:​ih:​oil:​1967_xlch_oil_pump_1_by_ss396.jpg?​direct&​300|}}|{{:​techtalk:​ih:​oil:​1967_xlch_oil_pump_2_by_ss396.jpg?​direct&​300|}}|{{:​techtalk:​ih:​oil:​oil_pump_on_72_ih_by_deedub97gt.jpg?​direct&​300|}}|
 +
 +===== 1957-E1962 =====
 +
 +  * There are (3 variations) and these all use 16t gear sets and style 1 plumbing ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204))
 +    * Feed gears:
 +      * O.D. (1.115"​ OD) ((needspeed of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5795112#​post5795112))
 +      * Width (.185"​) ((needspeed of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5795112#​post5795112))
 +    * Return gears"
 +      * Width (?)
 +    * Driven gear:
 +      * Center hole I.D. (.422"​) ((kitabel of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5792413#​post5792413))
 +    * Idler gear:
 +      * Center hole I.D. (.422"​) ((kitabel of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5792413#​post5792413))
 +  * The production changes made during its run: ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204))
 +    * 57-e58 baseline pump that all others came from. \\ No oil seal. \\ Uses a snap ring and a full profile woodruff key at scavenge gear. 
 +    * L58-59 same as above but now has body machined for a oil seal.
 +    * 60-e62 same as L58-59 but the retaining ring at the scavenge is replaced by half moon retainers. \\ The scavenge drive gear is counter-bored for these half moons and the woodruff key is shortened so it won't interfere with the half moons.
 +
 +===== L1962-1971 =====
 +
 +  * There are (2 variations) and all these used 14t gears & scavenge sets got taller than the previous 16's were. ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204))
 +    * Feed gears:
 +      * O.D. (.990" OD) ((needspeed of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5795112#​post5795112))
 +      * Width (.216"​) ((needspeed of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5795112#​post5795112))
 +    * Return gears:
 +      * Width (?)
 +    * Driven gear:
 +      * Center hole I.D. (.422"​) ((kitabel of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5792413#​post5792413))
 +    * Idler gear:
 +      * Center hole I.D. (.422"​) ((kitabel of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5792413#​post5792413))
 +  * All use half moons and shortened key on scavenge drive.
 +  * Bodies made till '66 are for style 1 plumbing.
 +  * In '67, the body gets tapped for the external feed fitting for use on 67-69 XLH. This is when style2 plumbing started. ​
 +  * Bodies tapped for style2 were still used on the last 3 yrs (67-69 xlch) of style1 cases.
 +  * A plug is put in this new hole if body got used on a style1 case set.
 +
 +===== 1972-1976 =====
 +
 +  * These have (no variations) and go back to 16t gears and a snap ring with long key ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204))
 +    * Feed gears:
 +      * O.D. (1.115"​ OD) ((needspeed of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5795112#​post5795112))
 +      * Width (.185"​) ((needspeed of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5795112#​post5795112))
 +    * Return gears"
 +      * Width (?)
 +    * Driven gear:
 +      * Center hole I.D. (.422"​) ((kitabel of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5792413#​post5792413))
 +    * Idler gear:
 +      * Center hole I.D. (.422"​) ((kitabel of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5792413#​post5792413))
 +    * Feed gears are the same as 57-e62 but the scavenge set is now wider again (wider than any of the previous sets).
 +  * Breather gear gets enlarged slots in it. ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204))
 +  * Breather timing: ​
 +    * Open 20-25 deg ATDC Front CYL ((thefrenchowl of the XLFORUM® http://​xlforum.net/​forums/​showthread.php?​t=989934))
 +    * Close 85-90 deg ABDC Front CYL ((thefrenchowl of the XLFORUM® http://​xlforum.net/​forums/​showthread.php?​t=989934))
 +  * Body and breather housing get an extra hole (2 holes now) drilled in them for additional return capacity, cases also get extra matching hole. ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204))
 +  * Solid feed gear drive pin gets replaced by the hated roll pin. ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204))
 +  * Dowels between body and breather housing are now history. ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204)) ​
 +
 +  * Each complete pump breaks down into these components: ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204))
 +  - Breather or sleeve gear-has the 2 slots in it
 +  - Breather gear housing- cast iron part that breather rides in
 +  - Feed gear set and drive pin (the skinnier of the 2 gear sets)
 +  - Pump body
 +  - Scavenge gear set and drive key and retaining clip.
 +
 +
 ====== XR-750 Oil Pumps (only) ====== ====== XR-750 Oil Pumps (only) ======
   * From 1972 to 1989, the gear driven oil pump went through several changes.   * From 1972 to 1989, the gear driven oil pump went through several changes.
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     * If no oil pressure or return oil is not indicated at the oil tank, when engine is running, or an excess amount of oil is blown from the breather pipe, dis-assemble the oil pump for repair. Damage can occur by way of a foreign object lodged in the oil pump gearing. Check your FSM for dis-assembly and repair. ((1970-1978 HD XL/​XLH/​XLCH/​XLT 1000 FSM))  ​     * If no oil pressure or return oil is not indicated at the oil tank, when engine is running, or an excess amount of oil is blown from the breather pipe, dis-assemble the oil pump for repair. Damage can occur by way of a foreign object lodged in the oil pump gearing. Check your FSM for dis-assembly and repair. ((1970-1978 HD XL/​XLH/​XLCH/​XLT 1000 FSM))  ​
 \\ \\
- 
- 
-===== Production Oil Pumps ===== 
- 
-  * There are 3 basic pumps ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204)) 
-    - 57-E62 (3 variations) these use 16t body gears. 
-    - L62-71 (2 variations) these use 14t 
-    - 72-76 (no variations) use 16t again  ​ 
-  * & 2 basic plumbing styles: ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204)) 
-    - Both feed and return are drilled passages in the right crankcase (57-66 all) & (67-69 xlch) 
-    - Only return drilled thru case. feed goes from tank to pump by external hose. (67-69 xlh) & (70-76 all) 
-  * With the correct knowledge any 57-76 pump, or parts of them can be mated to any 57-76 cases. But the combos can get confusing. ((Dr Dick of the XLFORUM http://​xlforum.net/​forums/​showpost.php?​p=3272806&​postcount=204)) 
-  * The stock slot in pre & post -72 pump bodies are .345" ((chevelle of the XLFORUM® http://​xlforum.net/​forums/​showthread.php?​t=989934&​page=2)) 
-  * The stock slot in pre -72 pump gear is .375" ((chevelle of the XLFORUM® http://​xlforum.net/​forums/​showthread.php?​t=989934&​page=2)) 
-  * The stock slot in post -72 pump gear is .625" ((chevelle of the XLFORUM® http://​xlforum.net/​forums/​showthread.php?​t=989934&​page=2)) 
- 
-|  Oil Pump on 1967 XLCH ((photos by ss396 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1864035&​highlight=Ironhead+Crankcase+Drain+Plug&​page=4)) ​ |  Oil Pump on 1972 XLH ((photo by deedub97gt of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​page=17&​t=1637849)) ​ |  
-|{{:​techtalk:​ih:​oil:​1967_xlch_oil_pump_1_by_ss396.jpg?​direct&​300|}}|{{:​techtalk:​ih:​oil:​1967_xlch_oil_pump_2_by_ss396.jpg?​direct&​300|}}|{{:​techtalk:​ih:​oil:​oil_pump_on_72_ih_by_deedub97gt.jpg?​direct&​300|}}| 
  
 ====== 1977-1985 Gerotor Driven Pumps ====== ====== 1977-1985 Gerotor Driven Pumps ======
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 {{:​techtalk:​ih:​oil:​77-_85_oil_pump_drawing_by_hippysmack.jpg?​direct&​400|}} ((drawing by Hippysmack)) {{:​techtalk:​ih:​oil:​77-85_oil_pump_feed_transfer_by_hippysmack.jpg?​direct&​300|}} ((photo by Hippysmack)) {{:​techtalk:​ih:​oil:​77-_85_oil_pump_drawing_by_hippysmack.jpg?​direct&​400|}} ((drawing by Hippysmack)) {{:​techtalk:​ih:​oil:​77-85_oil_pump_feed_transfer_by_hippysmack.jpg?​direct&​300|}} ((photo by Hippysmack))
- 
  
   * This pump has two hose fittings; ((ironheadjunkie of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1400314&​page=2))   * This pump has two hose fittings; ((ironheadjunkie of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1400314&​page=2))
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     * Then, the oil will return from the front fitting of the oil pump to the oil tank.     * Then, the oil will return from the front fitting of the oil pump to the oil tank.
  
 +{{:​techtalk:​evo:​oil:​oil_pressure_switch_threads_by_hippysmack.png?​direct&​300|}} ((drawing by Hippysmack)) \\
 ===== Production Oil Pumps ===== ===== Production Oil Pumps =====
  
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     * Another way to prime the pump is to use assembly lube on the gerotors and inside of the pump before installing it. ((aswracing of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=4805186#​post4805186)) \\ Then you have an instant hydraulic seal to help the oil pump suck oil from the hose.     * Another way to prime the pump is to use assembly lube on the gerotors and inside of the pump before installing it. ((aswracing of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=4805186#​post4805186)) \\ Then you have an instant hydraulic seal to help the oil pump suck oil from the hose.
     * You can also using a large syringe with a tapered tip inserted into the oil supply hose on the bottom of the oil tank. ((ericfreeman of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5751479#​post5751479)) \\ Then you can force feed oil the pump and on to the engine using this technique and it avoids having to mess with the sending unit.     * You can also using a large syringe with a tapered tip inserted into the oil supply hose on the bottom of the oil tank. ((ericfreeman of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5751479#​post5751479)) \\ Then you can force feed oil the pump and on to the engine using this technique and it avoids having to mess with the sending unit.
 +    * With this homemade tool, all you have to do is use a grease gun (without grease) filled with oil and pump it into the system so a dry start can be avoided. {{:​techtalk:​ref:​tools:​check_ball_tester_and_prelube_fitting_by_bustert.jpg?​direct&​300|}} ((photo by bustert of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1813185&​page=2))