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techtalk:ih:engmech01 [2023/12/19 21:54] – [Pinion shaft bushings] hippysmack | techtalk:ih:engmech01 [2025/07/28 22:48] (current) – [Breaker Points/Nosecone Ignition Seal] hippysmack |
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{{:techtalk:ref:oil:fitting_720_timing_hole_plug_by_sum-body1_pic1.jpg?direct&300|}} ((photos courtesy of Ebay seller, Sum-body's Harley Parts, [[https://www.ebay.com/str/sumbodysharleyparts|Link to Ebay Store]] )) {{:techtalk:ref:oil:fitting_720_timing_hole_plug_by_sum-body1_pic2.jpg?direct&300|}} ((photos courtesy of Ebay seller, Sum-body's Harley Parts, [[https://www.ebay.com/str/sumbodysharleyparts|Link to Ebay Store]] )) \\ | {{:techtalk:ref:oil:fitting_720_timing_hole_plug_by_sum-body1_pic1.jpg?direct&300|}} ((photos courtesy of Ebay seller, Sum-body's Harley Parts, [[https://www.ebay.com/str/sumbodysharleyparts|Link to Ebay Store]] )) {{:techtalk:ref:oil:fitting_720_timing_hole_plug_by_sum-body1_pic2.jpg?direct&300|}} ((photos courtesy of Ebay seller, Sum-body's Harley Parts, [[https://www.ebay.com/str/sumbodysharleyparts|Link to Ebay Store]] )) \\ |
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====== Primary Cover ====== | ====== Primary Cover ====== |
|1977-1985 XLH \\ 1977-1979 XLCH \\ 1983-1990 Sportster|34955-75| | | | |1977-1985 XLH \\ 1977-1979 XLCH \\ 1983-1990 Sportster|34955-75| | | |
|1980-1982 XLS|34966-80|Same exact gasket as 1977-1985 version above, just black in color.| | | |1980-1982 XLS|34966-80|Same exact gasket as 1977-1985 version above, just black in color.| | |
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===== Shifter Shaft Bushing ===== | ===== Shifter Shaft Bushing ===== |
=== 1977-2003 Bushing === | === 1977-2003 Bushing === |
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{{:techtalk:ih:engmech:1977-1996_sportster_primary_cover_dowel_bushing_24754-75_by_robisonmotorcycles.jpg?direct&300|}} ((photo courtesy of Ebay seller, Robison Motorcycles [[ https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563 |Link to Ebay Store]] )) \\ | {{:techtalk:ih:engmech:1977-1996_sportster_primary_cover_dowel_bushing_24754-75_by_robisonmotorcycles.jpg?direct&300|}} ((photo courtesy of Ebay seller, Robison Motorcycles [[ https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563 |Link to Ebay Store]] )) \\ |
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===== Name Transfer (1971-1980) ===== | ===== Name Transfer (1971-1980) ===== |
These are used in the "pocket" in the center of the primary cover. \\ | These are used in the "pocket" in the center of the primary cover. \\ |
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{{:techtalk:ih:engmech:1977-1978_xlcr_name_transfer_34965-77_by_johngoober.jpg?direct&300|}} ((photo by Ebay seller, johngoober, [[https://www.ebay.ca/sch/i.html?item=144998065911&rt=nc&_trksid=p2047675.m3561.l2562&_ssn=johngoober|Link to Ebay Store]] )) {{:techtalk:ih:engmech:1971_xlh-xlch_name_transfer-900_34960-71_by_market406.jpg?direct&300|}} ((photo courtesy of Ebay seller, market406. [[https://www.ebay.com/sch/market406/m.html?_nkw=&_armrs=1&_ipg=&_from=|Link to Items for Sale page]] )) | {{:techtalk:ih:engmech:1977-1978_xlcr_name_transfer_34965-77_by_johngoober.jpg?direct&300|}} ((photo by Ebay seller, johngoober, [[https://www.ebay.ca/sch/i.html?item=144998065911&rt=nc&_trksid=p2047675.m3561.l2562&_ssn=johngoober|Link to Ebay Store]] )) {{:techtalk:ih:engmech:1971_xlh-xlch_name_transfer-900_34960-71_by_market406.jpg?direct&300|}} ((photo courtesy of Ebay seller, market406. [[https://www.ebay.com/sch/market406/m.html?_nkw=&_armrs=1&_ipg=&_from=|Link to Items for Sale page]] )) |
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{{:techtalk:ih:engmech:1977-1980_xlh-xlch_name_transfer-sportster-_34961-77_by_nitrofrankie_go-fast_hd.jpg?direct&300|}} ((photo courtesy of NitroFrankie Go-Fast HD, [[https://www.ebay.com/sch/m.html?item=194837126341&_ssn=ct_kustoms&_ipg=200&rt=nc|Ebay Items for Sale Page]] )) \\ | {{:techtalk:ih:engmech:1977-1980_xlh-xlch_name_transfer-sportster-_34961-77_by_nitrofrankie_go-fast_hd.jpg?direct&300|}} ((photo courtesy of NitroFrankie Go-Fast HD, [[https://www.ebay.com/sch/m.html?item=194837126341&_ssn=ct_kustoms&_ipg=200&rt=nc|Ebay Items for Sale Page]] )) \\ |
| L1984-1985 Primary Oil Filler Plug 34742-77B ((photos courtesy of Ebay seller, animalhouse2010, [[https://www.ebay.com/str/animalhouse2010?_trksid=p2047675.l2563|Link to Ebay store:]] )) ||| | | L1984-1985 Primary Oil Filler Plug 34742-77B ((photos courtesy of Ebay seller, animalhouse2010, [[https://www.ebay.com/str/animalhouse2010?_trksid=p2047675.l2563|Link to Ebay store:]] )) ||| |
|{{:techtalk:ih:engmech:1984l-1985_sportster_primary_oil_filler_plug_34742-77b_by_animalhouse2010_pic1.jpg?direct&300|}}|{{:techtalk:ih:engmech:1984l-1985_sportster_primary_oil_filler_plug_34742-77b_by_animalhouse2010_pic2.jpg?direct&300|}}|{{:techtalk:ih:engmech:1984l-1985_sportster_primary_oil_filler_plug_34742-77b_by_animalhouse2010_pic3.jpg?direct&300|}}| | |{{:techtalk:ih:engmech:1984l-1985_sportster_primary_oil_filler_plug_34742-77b_by_animalhouse2010_pic1.jpg?direct&300|}}|{{:techtalk:ih:engmech:1984l-1985_sportster_primary_oil_filler_plug_34742-77b_by_animalhouse2010_pic2.jpg?direct&300|}}|{{:techtalk:ih:engmech:1984l-1985_sportster_primary_oil_filler_plug_34742-77b_by_animalhouse2010_pic3.jpg?direct&300|}}| |
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====== Gearcase / Cam Chest Cover ====== | ====== Gearcase / Cam Chest Cover ====== |
AKA, (spring loaded top hat) \\ | AKA, (spring loaded top hat) \\ |
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Looking at the brass part, you can see how the spring catches on the inward bent tabs. There are also unbent tabs on the brass. ((Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?t=1861965)) \\ | Looking at the brass part, you can see how the spring catches on the inward bent tabs. There are also unbent tabs on the brass. ((Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/173424-oil-separator-question-any-help-appreciated?t=1861965)) \\ |
These, when bent outward just a little, fit into slots on the far side of the steel bushing pressed into cam cover. \\ | These, when bent outward just a little, fit into slots on the far side of the steel bushing pressed into cam cover. \\ |
Here's how the factory assembled this thing. \\ | Here's how the factory assembled this thing. \\ |
They had pre-assembled the brass to the steel before the steel was pressed into the cover. \\ | They had pre-assembled the brass to the steel before the steel was pressed into the cover. \\ |
Then dropped the spring into the cover and pressed the brass/steel assembly into the cover as a unit (and manipulated the spring to sit correctly if needed). \\ | Then dropped the spring into the cover and pressed the brass/steel assembly into the cover as a unit (and manipulated the spring to sit correctly if needed). \\ |
However, it is possible to assemble the unit without removing the steel from the cover. ((62 Ironhead of the XLFORUM http://xlforum.net/forums/showthread.php?t=1861965&page=2)) \\ | However, it is possible to assemble the unit without removing the steel from the cover. ((62 Ironhead of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/173424-oil-separator-question-any-help-appreciated/page2?t=1861965&page=2)) \\ |
You can bend the tangs out without having to remove the steel bush with a screwdriver and a hammer to bend the 2 locating tabs out. \\ | You can bend the tangs out without having to remove the steel bush with a screwdriver and a hammer to bend the 2 locating tabs out. \\ |
Notes: \\ | Notes: \\ |
The spring should have free action and be fully extended in the gearcase cover. \\ | The spring should have free action and be fully extended in the gearcase cover. \\ |
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{{:techtalk:ih:engmech:1952-1962_k_model-sportster_breather_oil_separator_bushing_assembly_25265-52_by_jrsvintageharley1990.jpg?direct&300|}} ((photo courtesy of Ebay seller, jrsvintageharley1990. [[https://www.ebay.com/str/jrsvintageharleyparts?_trksid=p2047675.l2563|Link to Ebay Store]] )) {{:techtalk:ih:engmech:breather_bushing_pic1_by_62_ironhead.jpg?direct&300|}} ((photo by 62 Ironhead of the XLFORUM http://xlforum.net/forums/showthread.php?t=1861965)) {{:techtalk:ih:engmech:breather_bushing_pic2_by_62_ironhead.jpg?direct&300|}} ((photo by 62 Ironhead of the XLFORUM http://xlforum.net/forums/showthread.php?t=1861965)) \\ | {{:techtalk:ih:engmech:1952-1962_k_model-sportster_breather_oil_separator_bushing_assembly_25265-52_by_jrsvintageharley1990.jpg?direct&300|}} ((photo courtesy of Ebay seller, jrsvintageharley1990. [[https://www.ebay.com/str/jrsvintageharleyparts?_trksid=p2047675.l2563|Link to Ebay Store]] )) {{:techtalk:ih:engmech:breather_bushing_pic1_by_62_ironhead.jpg?direct&300|}} ((photo by 62 Ironhead of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/173424-oil-separator-question-any-help-appreciated/page2?t=1861965&page=2)) {{:techtalk:ih:engmech:breather_bushing_pic2_by_62_ironhead.jpg?direct&300|}} ((photo by 62 Ironhead of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/173424-oil-separator-question-any-help-appreciated/page2?t=1861965&page=2)) \\ |
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{{:techtalk:ih:engmech:breather_bushing_pic3_by_62_ironhead.jpg?direct&300|}} ((photo by 62 Ironhead of the XLFORUM http://xlforum.net/forums/showthread.php?t=1861965)) {{:techtalk:ih:engmech:breather_bushing_pic4_by_62_ironhead.jpg?direct&300|}} ((photo by 62 Ironhead of the XLFORUM http://xlforum.net/forums/showthread.php?t=1861965)) {{:techtalk:ih:engmech:breather_bushing_pic5_by_62_ironhead.jpg?direct&300|}} ((photo by 62 Ironhead of the XLFORUM http://xlforum.net/forums/showthread.php?t=1861965)) \\ | {{:techtalk:ih:engmech:breather_bushing_pic3_by_62_ironhead.jpg?direct&300|}} ((photo by 62 Ironhead of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/173424-oil-separator-question-any-help-appreciated/page2?t=1861965&page=2)) {{:techtalk:ih:engmech:breather_bushing_pic4_by_62_ironhead.jpg?direct&300|}} ((photo by 62 Ironhead of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/173424-oil-separator-question-any-help-appreciated/page2?t=1861965&page=2)) {{:techtalk:ih:engmech:breather_bushing_pic5_by_62_ironhead.jpg?direct&300|}} ((photo by 62 Ironhead of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/173424-oil-separator-question-any-help-appreciated/page2?t=1861965&page=2)) \\ |
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This was the brake shaft design from 1977-1979 (even though the rear brakes went hydraulic in 1979). \\ | This was the brake shaft design from 1977-1979 (even though the rear brakes went hydraulic in 1979). \\ |
However, in 1980, the MoCo moved the brake operating lever to the trans sprocket cover so the hole in the cam cover was now useless (1980-1985). \\ | However, in 1980, the MoCo moved the brake operating lever to the trans sprocket cover so the hole in the cam cover was now useless (1980-1985). \\ |
Cam Cover Bushing Bore: .7450" ((Scott of the XLFORUM http://xlforum.net/forums/showthread.php?t=2074151)) \\ | Cam Cover Bushing Bore: .7450" ((Scott of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/197504-cam-cover-swap?t=2074151)) \\ |
Bushing (25594-75) App. Dims: \\ | Bushing (25594-75) App. Dims: \\ |
Bushing OD (before installing): .752" ((Dims from Robison Motorcycles)) \\ | Bushing OD (before installing): .752" ((Dims from Robison Motorcycles)) \\ |
Bushing ID (before installing): .6250" ((Scott of the XLFORUM http://xlforum.net/forums/showthread.php?t=2074151)) \\ | Bushing ID (before installing): .6250" ((Scott of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/197504-cam-cover-swap?t=2074151)) \\ |
Bushing Length: .625" ((Dims from Robison Motorcycles)) \\ | Bushing Length: .625" ((Dims from Robison Motorcycles)) \\ |
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===== Ignition Timer Cover ===== | ===== Ignition Timer Cover ===== |
{{:techtalk:ih:engmech:1991-2002_sportster_ignition_timer_cover_32506-90_by_ebay_cyclewarehouse.jpg?direct&300|}} ((photo courtesy of Ebay seller, cyclewarehouse. [[https://www.ebay.com/sch/cyclewarehouse/m.html?_nkw=&_armrs=1&_ipg=&_from=|Link to Items for Sale]] )) \\ | {{:techtalk:ih:engmech:1991-2002_sportster_ignition_timer_cover_32506-90_by_ebay_cyclewarehouse.jpg?direct&300|}} ((photo courtesy of Ebay seller, cyclewarehouse. [[https://www.ebay.com/sch/cyclewarehouse/m.html?_nkw=&_armrs=1&_ipg=&_from=|Link to Items for Sale]] )) \\ |
| ===== Breaker Points/Nosecone Ignition Seal ===== |
| This is a steel shell radial shaft seal (HD# 11124) installed in the cam cover. \\ |
| It surrounds and seals #2 cam when the cover is installed. Also used on 1986-2003 model Sportster cam covers. \\ |
| Dims per XLForum member, Fizzle: \\ |
| OD 1.570" (39.878mm), ID 1.050" (26.67mm), W 0.248" (6.2992mm) \\ |
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| Other brands include James (JGI-11124), Cometic (C9355), Athena (51-A210), Custom Chrome (54-043). \\ |
| The rubber shell HD Genuine double lip version is part number (11124-DL). \\ |
| Other brands include James (JGI-11124-DL). \\ |
| **NOTE**: __SKF makes a radial shaft seal with a part number of 11124 but that IS NOT AN HD PART NUMBER__. \\ |
| SKF 11124 IS TOO BIG TO FIT THE COVER and they don't show a compatible seal in their catalog for this application. \\ |
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| HD Seal (11124): \\ |
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| {{:techtalk:ih:engmech:1971-2003_nosecone_ignition_seal_11124_by_hippysmack.jpg?direct&400|}} ((photo by Hippysmack)) |
====== Parts Lists ====== | ====== Parts Lists ====== |
==== Engine Cases ==== | ==== Engine Cases ==== |
All part numbers were gathered from period specific Sportster parts catalogs from 1957-1985 including supplement and updated catalogs. \\ | All part numbers were gathered from period specific Sportster parts catalogs from 1957-1985 including supplement and updated catalogs. \\ |
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^{{techtalk:miscres:instruction_sheet_header_4.png?nolink&803|}}|||||| | ^{{techtalk:miscres:instruction_sheet_header_4.png?nolink&803|}}|||||| |
|Year Model|Case Set \\ Part#|Left Case \\ Part#|Left Case \\ Casting#|Right Case \\ Part#|Right Case \\ Casting#| | |Year Model|Case Set \\ Part#|Left Case \\ Part#|Left Case \\ Casting#|Right Case \\ Part#|Right Case \\ Casting#| |
| Notes|"Hump" cases (primary cast to accept electric starter). \\ Right case is replacement for 1967-1968 XLH \\ Case set is also replacement for 1967-1969 XLH \\ Right case, lower left of gearcase, drilled and tapped for chain oiler fitting.||||| | | Notes|"Hump" cases (primary cast to accept electric starter). \\ Right case is replacement for 1967-1968 XLH \\ Case set is also replacement for 1967-1969 XLH \\ Right case, lower left of gearcase, drilled and tapped for chain oiler fitting.||||| |
|L1969-E1971 XLH/XLCH|24512-67A|24531-67|34-67|24555-67A|24558-67| | |L1969-E1971 XLH/XLCH|24512-67A|24531-67|34-67|24555-67A|24558-67| |
| Notes|1970 and all future Sportster year cases are "hump" cases for electric start \\ Left case is replacement for 1967-1969 XLH \\ Right case is replacement for 1967-1969 XLH \\ Case set is also replacement for 1967-1969 XLH \\ 1978 parts supplement corrects "used on" models to 70-71 XLCH \\ VIN moved the from the left side case to the right case. \\ A blank Vin pad is still on the left with no number stamped on it. ((Ferrous Head of the XLFORUM http://xlforum.net/forums/showthread.php?p=5894918&highlight=1970+case#post5894918))||||| | | Notes|1970 and all future Sportster year cases are "hump" cases for electric start \\ Left case is replacement for 1967-1969 XLH \\ Right case is replacement for 1967-1969 XLH \\ Case set is also replacement for 1967-1969 XLH \\ 1978 parts supplement corrects "used on" models to 70-71 XLCH \\ VIN moved the from the left side case to the right case. \\ A blank Vin pad is still on the left with no number stamped on it. ((Ferrous Head of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/202152-more-stroker-parts/page8?highlight=1970+case#post4499327))||||| |
|L1971 XLCH|24512-70|24531-67| |24555-70|24558-67| | |L1971 XLCH|24512-70|24531-67| |24555-70|24558-67| |
| Notes|Case set is also replacement for 1970 XLCH.||||| | | Notes|Case set is also replacement for 1970 XLCH.||||| |