Differences

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

--- techtalk:ih:carb07 [2019/09/21 19:22]
hippysmack [IH: Carburetor, Intake Manifold & Exhaust]
+++ techtalk:ih:carb07 [2023/12/30 00:29]
hippysmack
@@ Line 6: / Line 6: @@
 ====== Intake Manifold ======
-===== Bendix =====
+^{{techtalk:miscres:instruction_sheet_header_4.png?nolink&830|}}||||||
-{{:techtalk:ih:carb:bendix_mounting_hardware_by_the_doctor71.jpg?direct&300|}} ((photo by The Doctor71 of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071371)) \\
+|  HD Sportster Manifold Part Numbers  ||||||
+|Year Model|Manifold Part#|Material|Throat Dia.|Bolt Hole \\ Dims/Spacing|OEM Carb|
+|1957-1971 Sportsters|27021-57|Cast iron|1.562"|.39" holes on a 2.688" b.c. ((Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/179433-manifold-differences?postcount=6#post3834793))|Linkert \\ Tillotson|
+|1972-1974 Sportsters|27021-71|Cast iron|1.562"|.33" holes on 2.750" b.c. ((Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/179433-manifold-differences?postcount=6#post3834793))|Bendix / Zenith|
+|1975-1979 Sportsters|27021-71A|Aluminum|1.562"|.33" holes on a 2.750" b.c. ((Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/179433-manifold-differences?postcount=6#post3834793))|Bendix / Zenith \\ Keihin "butterfly"|
+|1980-1985 Sportster|27021-78 ((1979-1985 HD Sportster Parts Catalog))|Aluminum|  |  |Keihin "butterfly"|
+|  HD Big Twin Manifold Part Numbers  |||||
+|Year Model|Manifold Part#||||
+|1971-1975 FL/FLH/FX|27021-71 ((HD 1961-1976 ElectraGlide/SuperGlide Parts Catalog pg 19)) ||||
+|1976-E1980 FL/FX|27021-71A ((HD 1941-1978 ElectraGlide/SuperGlide Parts Catalog pg 17)) ((HD 1971-1980 FX/SuperGlide Parts Catalog pg 25))||||
+|L1980-later FX|27021-78((HD 1971-1984 FX Parts Catalog pg 29))||||
-{{:techtalk:ih:carb:bendix_-_mounted_1_by_the_doctor71.jpg?direct&200|}} ((photo by The Doctor71 of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071371)) {{:techtalk:ih:carb:bendix_-_mounted_2_by_the_doctor71.jpg?direct&200|}} ((photo by The Doctor71 of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071371)) {{:techtalk:ih:carb:bendix_-_mounted_3_by_the_doctor71.jpg?direct&200|}} ((photo by The Doctor71 of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071371)) \\
+|  1972-1974 Sportster Intake Manifold (27021-71) ((photos courtesy of Stripped Down Cycles [[https://www.ebay.com/str/strippeddowncycles?_trksid=p2047675.m3561.l2563|Link to Ebay Store:]] ))  |||
+|{{:techtalk:ih:carb:1972-1974_sportster_intake_manifold_27021-71_pic1_by_stripped_down_cycles.jpg?direct&300|}}|{{:techtalk:ih:carb:1972-1974_sportster_intake_manifold_27021-71_pic2_by_stripped_down_cycles.jpg?direct&300|}}|{{:techtalk:ih:carb:1972-1974_sportster_intake_manifold_27021-71_pic3_by_stripped_down_cycles.jpg?direct&300|}}|
+|  1975-1979 Sportster Intake Manifold (27021-71A) ((photos courtesy of Ebay seller, animalhouse2010, [[https://www.ebay.com/str/animalhouse2010?_trksid=p2047675.l2563|Link to Ebay store:]] ))  |||
+|{{:techtalk:ih:carb:1975-1979_sportster_intake_manifold_27021-71a_pic1_by_animalhouse2010.jpg?direct&300|}}|{{:techtalk:ih:carb:1975-1979_sportster_intake_manifold_27021-71a_pic2_by_animalhouse2010.jpg?direct&300|}}|{{:techtalk:ih:carb:1975-1979_sportster_intake_manifold_27021-71a_pic3_by_animalhouse2010.jpg?direct&300|}}|
+\\
+[[techtalk:miscres:miscres05#tsb_750-799|Click Here]] to go to the TSB page in the Sportsterpedia and download TSB M-788 regarding the changes for the 27021-78 manifold. \\
+In March, 1980, several modifications were made to heads/intake manifolds/clamps used on L1980 1200/1340cc FL/FX models to improve sealing capabilities. \\
+|  1980-1985 Sportster Intake Manifold (27021-78) ((photos courtesy of Ebay seller, Robison Motorcycles [[ https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563 |Link to Ebay Store]] ))  |||
+|{{:techtalk:ih:engmech:1980-1985_sportster_intake_manifold_27021-78_pic1_by_robisonmotorcycles.jpg?direct&300|}}|{{:techtalk:ih:engmech:1980-1985_sportster_intake_manifold_27021-78_pic2_by_robisonmotorcycles.jpg?direct&300|}}|{{:techtalk:ih:engmech:1980-1985_sportster_intake_manifold_27021-78_pic3_by_robisonmotorcycles.jpg?direct&300|}}|
+====== Seals - Intake to Heads ======
+^{{techtalk:miscres:instruction_sheet_header_4.png?nolink&830|}}|||
+| Intake to Head - Hardware History. ((See Brucstoudt & Dr_Dick - XLForum - https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/202688-intake-manifold-o-ring-or-rubber-band?t=2079889)) ((also https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/73290-79-what-is-this-gasket-where-do-i-get-some?t=509757)) ((1979-1985 HD Sportster Parts Catalog pgs 23-27)) || OEM Part Numbers |
+| 1957-78 | Used exact same port sealing machining, heads and manifolds | **Uses O-rings - 27060-55 - Clamp 27063-57** |
+| 1979 | Confusing because it had the o-ring machining but used rubber bands | **Uses rubber bands - 27062-78 - Clamp 27063-78** |
+| E1980 | Dropped the machining for the O-ring | **Uses rubber bands - 27062-78 - Clamp 27063-78** |
+| L1980-1985 | Uses same rubber bands as 79-E80 but different clamp | **Uses ruber bands - 27062-78 - Clamp 27063-80** |
+| |||
+| 1979 models could retro fit 78-earlier interface mechanisms as a bolt on mod. |||
+| 1980-later models needed the heads to be machined for reverting to the straight up o-ring seals. |||
+|  1957-1978 Intake Manifold O-rings (27060-55) ((photo courtesy of Ebay seller, jrsvintageharley1990. [[https://www.ebay.com/str/jrsvintageharleyparts?_trksid=p2047675.l2563|Link to Ebay Store]]  ))  |  1957-1978 Intake Manifold Clamp (27063-57) ((photos courtesy of Ebay seller, jrsvintageharley1990. [[https://www.ebay.com/str/jrsvintageharleyparts?_trksid=p2047675.l2563|Link to Ebay Store]]  ))  |
+|{{:techtalk:ih:carb:1957-1978_sportster_intake_manifold_o-rings_27060-55_by_jrsvintageharley1990.jpg?direct&300|}}|{{techtalk:ih:carb:1957-1978_sportster_intake_manifold_clamp_27063-57_by_jrsvintageharley1990.jpg?direct&300|}}|
+|  1979-1985 Sportster Intake Manifold \\ Rubber Bands (27062-78) ((photo courtesy of Ebay seller, jrsvintageharley1990. [[https://www.ebay.com/str/jrsvintageharleyparts?_trksid=p2047675.l2563|Link to Ebay Store]]  ))  |  1979-E1980 Intake Manifold Clamp (27063-78) ((photos courtesy of Ebay seller, jrsvintageharley1990. [[https://www.ebay.com/str/jrsvintageharleyparts?_trksid=p2047675.l2563|Link to Ebay Store]]  ))  |
+|{{:techtalk:ih:carb:1979-1985_sportster_intake_manifold_rubber_bands_by_jrsvintageharley1990.jpg?direct&300|}}|{{:techtalk:ih:carb:1979-e1980_sportster_intake_manifold_clamp_27063-78_by_jrsvintageharley1990.jpg?direct&300|}}|
+===== Bendix =====
+{{:techtalk:ih:carb:bendix_mounting_hardware_by_the_doctor71.jpg?direct&300|}} ((photo by The Doctor71 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-intake-and-exhaust/sportster-motorcycle-air-intake-carburetor-efi-fuel-and-exhaust/195078-1974-manifold-seal-clamps-question?t=2071371)) \\
+{{:techtalk:ih:carb:bendix_-_mounted_1_by_the_doctor71.jpg?direct&200|}} ((photo by The Doctor71 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-intake-and-exhaust/sportster-motorcycle-air-intake-carburetor-efi-fuel-and-exhaust/195078-1974-manifold-seal-clamps-question?t=2071371)) {{:techtalk:ih:carb:bendix_-_mounted_2_by_the_doctor71.jpg?direct&200|}} ((photo by The Doctor71 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-intake-and-exhaust/sportster-motorcycle-air-intake-carburetor-efi-fuel-and-exhaust/195078-1974-manifold-seal-clamps-question?t=2071371)) {{:techtalk:ih:carb:bendix_-_mounted_3_by_the_doctor71.jpg?direct&200|}} ((photo by The Doctor71 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-intake-and-exhaust/sportster-motorcycle-air-intake-carburetor-efi-fuel-and-exhaust/195078-1974-manifold-seal-clamps-question?t=2071371)) \\
+===== Keihin Butterfly =====
+These V-twin clamps (35-0419) work well for stopping intake leaks. The tool to install them is the same as any oiteker clamp pliers. ((66xlch of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/113554-intake-manifold-leak-plague/page5?t=1079081&page=5)) \\
+{{:techtalk:ih:carb:manifold_clamps_by_66xlch.jpg?direct&300|}} ((photo by 66xlch of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/113554-intake-manifold-leak-plague/page5?t=1079081&page=5)) {{:techtalk:ih:carb:manifold_clamps_by_dirtycory.jpg?direct&300|}} ((photo by DirtyCory of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/113554-intake-manifold-leak-plague/page7?t=1079081&page=7)) \\
 [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]]

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