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| techtalk:ih:engmech01f [2023/12/19 16:08] – [1970 XLCH Cover] 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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| {{: | {{: | ||
| - | 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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| 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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| ====== 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, | ||
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| 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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| ====== 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 ====== | ||
