Differences
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| techtalk:ih:engmech01f [2023/12/17 19:36] – [Grease Fittings] hippysmack | techtalk:ih:engmech01f [2024/07/25 01:52] (current) – ↷ Links adapted because of a move operation hippysmack | ||
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| ====== IH: Engine Mechanicals - Sub-01F ====== | ====== IH: Engine Mechanicals - Sub-01F ====== | ||
| ====== Ironhead Transmission Sprocket Cover Pics ====== | ====== Ironhead Transmission Sprocket Cover Pics ====== | ||
| + | See also in the Sportsterpedia; | ||
| + | * . . . [[techtalk: | ||
| + | * . . . [[techtalk: | ||
| + | * . . . [[techtalk: | ||
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| \\ | \\ | ||
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| The stop pin (roll pin) is in the cover (underside). Look closely at these as they have a tendency to shear off flush with the cover. \\ | The stop pin (roll pin) is in the cover (underside). Look closely at these as they have a tendency to shear off flush with the cover. \\ | ||
| 1952-1956 covers do not have a gear stop pin. \\ | 1952-1956 covers do not have a gear stop pin. \\ | ||
| - | 1957-1967 covers were drilled through at the roll pin and you could drive it out from the outside. ((brucstoudt of the XLFORUM | + | 1957-1967 covers were drilled through at the roll pin and you could drive it out from the outside. ((brucstoudt of the XLFORUM |
| 1968-1970 covers have a boss added to the underside in a wider girth around the worm gear. \\ | 1968-1970 covers have a boss added to the underside in a wider girth around the worm gear. \\ | ||
| The hole for the roll pin is drilled from the underside, through the boss, but not all the way through to the outside of the cover. \\ | The hole for the roll pin is drilled from the underside, through the boss, but not all the way through to the outside of the cover. \\ | ||
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| There were 2 types of grease (zerk) fittings used on 1952-1970 sprocket covers. \\ | There were 2 types of grease (zerk) fittings used on 1952-1970 sprocket covers. \\ | ||
| The threaded fitting is HD part# ( 9851) and it has 5/ | The threaded fitting is HD part# ( 9851) and it has 5/ | ||
| - | A lot of ripped out fittings comes from levering a too tightly fitting gun socket off the nipple (rips the fitting from the thread). ((Dr Dick of the XLFORUM | + | A lot of ripped out fittings comes from levering a too tightly fitting gun socket off the nipple (rips the fitting from the thread). ((Dr Dick of the XLFORUM |
| Most gun sockets are adjustable (loosen the business end of the socket from its mate). \\ | Most gun sockets are adjustable (loosen the business end of the socket from its mate). \\ | ||
| - | You can use an aftermarket grease fitting with longer threads as long as you measure to make sure there is enough room for it. ((The Doctor71 of the XLFORUM | + | You can use an aftermarket grease fitting with longer threads as long as you measure to make sure there is enough room for it. ((The Doctor71 of the XLFORUM |
| The fitting below is a Facca (H1631) straight grease fitting that was slightly shortened with a file. \\ | The fitting below is a Facca (H1631) straight grease fitting that was slightly shortened with a file. \\ | ||
| The extra length/ | The extra length/ | ||
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| The bushing is pressed in and is held there by tension in the bore and doesn' | The bushing is pressed in and is held there by tension in the bore and doesn' | ||
| - | {{: | + | {{: |
| ====== Kick Starter Spring Stud ====== | ====== Kick Starter Spring Stud ====== | ||
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| {{: | {{: | ||
| - | The 1971-1979 stud was lengthened from the earlier version. The area between the spring retention groove and hex is longer. ((Dr Dick of the XLFORUM | + | The 1971-1979 stud was lengthened from the earlier version. The area between the spring retention groove and hex is longer. ((Dr Dick of the XLFORUM |
| {{: | {{: | ||
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| ===== 1967 XLH Cover ===== | ===== 1967 XLH Cover ===== | ||
| Sprocket cover part# (34871-67), with kickstarter. \\ | Sprocket cover part# (34871-67), with kickstarter. \\ | ||
| - | The 1967 XLH cover has a new cover casting and still has the single rib but it's modded for electric start motor. | + | The 1967 XLH cover has a new cover casting and still has the single rib but it's modded for electric start motor. |
| It's a 1 year, 1 model only, cover (machined for both kick and electric start as fitted from factory). \\ | It's a 1 year, 1 model only, cover (machined for both kick and electric start as fitted from factory). \\ | ||
| ===== 1968-1969 XLH Cover ===== | ===== 1968-1969 XLH Cover ===== | ||
| - | The original 1968-1969 XLH cover is HD part# (34869-68), with the upper dowel in the rear of the cover attaching bolt and machined for an optional factory kick start kit. ((Dr Dick of the XLFORUM | + | The original 1968-1969 XLH cover is HD part# (34869-68), with the upper dowel in the rear of the cover attaching bolt and machined for an optional factory kick start kit. ((Dr Dick of the XLFORUM |
| The ribbed design matching the cam cover was removed for a smooth surface across the cover instead (often referred to as a moonpie cover). \\ | The ribbed design matching the cam cover was removed for a smooth surface across the cover instead (often referred to as a moonpie cover). \\ | ||
| The worm gear roll pin bore does not go all the way through to the front of the cover. \\ | The worm gear roll pin bore does not go all the way through to the front of the cover. \\ | ||
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| ===== 1968-1969 XLCH Cover ===== | ===== 1968-1969 XLCH Cover ===== | ||
| - | 1968-1969 XLCH also had a new smooth cover casting (moonpie cover) with the upper dowel pin location in the front of the cover attaching bolt. ((Dr Dick of the XLFORUM | + | 1968-1969 XLCH also had a new smooth cover casting (moonpie cover) with the upper dowel pin location in the front of the cover attaching bolt. ((Dr Dick of the XLFORUM |
| Sprocket cover part number (34872-57A), | Sprocket cover part number (34872-57A), | ||
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| ===== 1970 XLCH Cover ===== | ===== 1970 XLCH Cover ===== | ||
| - | There were two versions of the 1970 XLCH style kicker cover (both moonpie covers). ((Dr Dick of the XLFORUM | + | There were two versions of the 1970 XLCH style kicker cover (both moonpie covers). ((Dr Dick of the XLFORUM |
| First one was factory fitment on some/all 1970 XLCH. It has 1 upper dowel pin hole in the rear of the upper cover attachment bolt. \\ | First one was factory fitment on some/all 1970 XLCH. It has 1 upper dowel pin hole in the rear of the upper cover attachment bolt. \\ | ||
| The second version is machined for 2 upper dowel pin holes, 1 in front and 1 in the rear of the cover attachment bolt; \\ | The second version is machined for 2 upper dowel pin holes, 1 in front and 1 in the rear of the cover attachment bolt; \\ | ||
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| ====== 1977-1978 Transmission Sprocket Covers ====== | ====== 1977-1978 Transmission Sprocket Covers ====== | ||
| - | The 1977-1978 XLCH cover is recognizable from a couple of things. Most obvious is the small 1/4" hole located about 1" or less above the kicker shaft bushing hole. ((Hopper of the XLFORUM | + | The 1977-1978 XLCH cover is recognizable from a couple of things. Most obvious is the small 1/4" hole located about 1" or less above the kicker shaft bushing hole. ((Hopper of the XLFORUM |
| This is the mounting stud for the extra support bracket, which is a must have on 1977-1978 XLCH with a kicker if you dont want to crack the poorly mounted sprocket cover. \\ | This is the mounting stud for the extra support bracket, which is a must have on 1977-1978 XLCH with a kicker if you dont want to crack the poorly mounted sprocket cover. \\ | ||
| The other thing on the 1977-1978 cover is the half-inch hole for the footpeg mount at the bottom front of the cover, with small 1/8" dowel locating holes. \\ | The other thing on the 1977-1978 cover is the half-inch hole for the footpeg mount at the bottom front of the cover, with small 1/8" dowel locating holes. \\ | ||
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| Inner Sprocket Cover \\ | Inner Sprocket Cover \\ | ||
| - | The 1977 and 1978 years were unique in that there is another stamped steel inner cover (34893-75) under the aluminum sprocket cover. ((ericfreeman of the XLFORUM | + | The 1977 and 1978 years were unique in that there is another stamped steel inner cover (34893-75) under the aluminum sprocket cover. ((ericfreeman of the XLFORUM |
| The steel piece holds the rear brake cable and light switch. \\ | The steel piece holds the rear brake cable and light switch. \\ | ||
| Fortunately, | Fortunately, | ||
| - | ===== 1977-1978 XL/XLH Cover ===== | + | ===== 1977-1978 XL/ |
| [[techtalk: | [[techtalk: | ||
| Line 308: | Line 314: | ||
| A 1/ | A 1/ | ||
| The L77 cover has an extra hole in the location for the screw although most folks swap the posi-drive screw to a phillips head screw. \\ | The L77 cover has an extra hole in the location for the screw although most folks swap the posi-drive screw to a phillips head screw. \\ | ||
| - | HD most likely added the fastener to help support an inherently weak cover when using the OEM folding kicker required by the big 2-1 muffler. ((ericfreeman of the xlforum | + | HD most likely added the fastener to help support an inherently weak cover when using the OEM folding kicker required by the big 2-1 muffler. ((ericfreeman of the xlforum |
| This threaded hole may or may not go all the into the transmission case. \\ | This threaded hole may or may not go all the into the transmission case. \\ | ||
| If it does, you may need to add some thread sealer on the screw threads before installing it, or there will be some oil spillage there. \\ | If it does, you may need to add some thread sealer on the screw threads before installing it, or there will be some oil spillage there. \\ | ||
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| The used inner cover below has that same impression. \\ | The used inner cover below has that same impression. \\ | ||
| - | {{: | + | {{: |
| Below is how it looks inside the outer cover and " | Below is how it looks inside the outer cover and " | ||
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| ====== 1979 XLCH Cover ====== | ====== 1979 XLCH Cover ====== | ||
| Outer Sprocket Cover (34872-79), polished, with kichstarter. \\ | Outer Sprocket Cover (34872-79), polished, with kichstarter. \\ | ||
| - | The master cylinder was mounted high on the 79's to miss the optional kickstarter shaft. Later models have no kicker. | + | The master cylinder was mounted high on the 79's to miss the optional kickstarter shaft. Later models have no kicker. \\ |
| Click on a pic to enlarge: ((photos courtesy of Ebay seller, WheatStateParts. [[https:// | Click on a pic to enlarge: ((photos courtesy of Ebay seller, WheatStateParts. [[https:// | ||
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| Here is how the inner cover fits in the outer cover. \\ | Here is how the inner cover fits in the outer cover. \\ | ||
| Also shown is how the rear brake linkage is connected over the cover with the return spring attached to the cover. \\ | Also shown is how the rear brake linkage is connected over the cover with the return spring attached to the cover. \\ | ||
| - | {{: | + | {{: |
| ====== 1980 XLH Cover ====== | ====== 1980 XLH Cover ====== | ||
