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techtalk:ref:svcproc9l [2024/04/30 20:52] hippysmack [Carrier 2] |
techtalk:ref:svcproc9l [2024/05/01 17:28] (current) hippysmack |
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| [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | ||
| - | ====== REF: Service Procedures 9G ====== | + | ====== REF: Service Procedures 9I ====== |
| \\ | \\ | ||
| ====== How to Blueprint Your Shifter ====== | ====== How to Blueprint Your Shifter ====== | ||
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| ====== Carriers ====== | ====== Carriers ====== | ||
| ===== Carrier 1 ===== | ===== Carrier 1 ===== | ||
| + | There are 4 different versions of OEM "pawl carriers" and 5 OEM versions of the "pawl carrier support" (I call this part "shift tower"). ((https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/125248-about-the-trans/page2?postcount=27#post2633705)) \\ | ||
| This is the 1952-1953 carrier. \\ | This is the 1952-1953 carrier. \\ | ||
| The thin area renders these unsuitable for 54> cases. The 1952-1953 cases used a bolt in stop (34625-52 in 1st post) that limited shifter shaft rotation. In 1954, that part was dropped and carrier rotation stop was moved to contact between carrier and retractors. In 1966, this was beefed up. More on that to come. \\ | The thin area renders these unsuitable for 54> cases. The 1952-1953 cases used a bolt in stop (34625-52 in 1st post) that limited shifter shaft rotation. In 1954, that part was dropped and carrier rotation stop was moved to contact between carrier and retractors. In 1966, this was beefed up. More on that to come. \\ | ||
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| They need the 66> where the 77> bikes work fine with either. Finding cracked towers at an indy will get you what you need for cheap. You're lookin for the tower on the left. They crack at the red line. \\ | They need the 66> where the 77> bikes work fine with either. Finding cracked towers at an indy will get you what you need for cheap. You're lookin for the tower on the left. They crack at the red line. \\ | ||
| {{:techtalk:ref:svcproc:htbs_1971_vs_1972_towers_1_by_dr_dick.jpg?direct&600|}} \\ | {{:techtalk:ref:svcproc:htbs_1971_vs_1972_towers_1_by_dr_dick.jpg?direct&600|}} \\ | ||
| + | \\ | ||
| + | {{:techtalk:ref:svcproc:htbs_1971_vs_1972_towers_2_by_dr_dick.jpg?direct&600|}} | ||
| **Questions**: \\ | **Questions**: \\ | ||
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| * Dr Dick: The rivets are actually precision pins that you peen both ends. There is no rivet head. Rivet was a terrible choice of word on my part. These pins are already installed in the trock tower. | * Dr Dick: The rivets are actually precision pins that you peen both ends. There is no rivet head. Rivet was a terrible choice of word on my part. These pins are already installed in the trock tower. | ||
| + | Here is the 1977-1985 tower. Changed for clearance of the 1977 up shifter shaft that came in from the left. \\ | ||
| + | {{:techtalk:ref:svcproc:htbs_1977-1985_shift_tower_by_dr_dick.jpg?direct&600|}} \\ | ||
| + | |||
| + | And here is the old trock cast iron tower, by far the best shift fork control and never breaks. Best of both worlds. \\ | ||
| + | {{:techtalk:ref:svcproc:htbs_trock_cast_iron_tower_by_dr_dick.jpg?direct&600|}} \\ | ||
| ====== Shift Shaft ====== | ====== Shift Shaft ====== | ||
| To this point, we have talked about each part (with the exception of the centering springs and the tower) and how it interacts with its mates. It's time to carry this a bit farther from the workbench. \\ | To this point, we have talked about each part (with the exception of the centering springs and the tower) and how it interacts with its mates. It's time to carry this a bit farther from the workbench. \\ | ||
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| Next, we tackle carrier centering, pawling bias, and cam plate slot registration. \\ | Next, we tackle carrier centering, pawling bias, and cam plate slot registration. \\ | ||
| + | |||
| + | **Question**: \\ | ||
| + | * megavites: What tranny issue might cause the shift arm to occasionally spin the shaft without actually clicking into the next gear. It also occasionally binds. I'm pretty sure the shifter is not spinning on the shaft and I'm wondering if this is an easy fix or leading me down the road to a tranny overhaul on my 73 XLCH. | ||
| + | * Dr Dick: I'll bet you have the most common shifter problem. Go to 1st post and see item 1). See that pin (used on 73>)? I'll bet yours is sheared. As a cure guys will weld the head to the shaft (I do it) and the weld will break if the weld isn't prepped well. I'll bet one of those two scenarios is at hand for you. \\ {{:techtalk:ref:svcproc:htbs_shift_shaft_pin_1973_up_by_dr_dick.jpg?direct&600|}} | ||
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| [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] | ||
