Differences

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

--- techtalk:ref:susp08 [2025/03/21 17:29] – [JMC] hippysmack
+++ techtalk:ref:susp08 [2025/03/21 17:38] (current) – [JMC] hippysmack
@@ Line 46: / Line 46: @@
 Pinch area on this 1989 XL883, the left side was 0.239" and the right side was .204" \\ {{:techtalk:ref:susp:1989_xl883_w_jmc_swingarm_pic3_by_dave83xlx.jpg?direct&400|1989_xl883_w_jmc_swingarm_pic3_by_dave83xlx.jpg}}{{:techtalk:ref:susp:1989_xl883_w_jmc_swingarm_pic4_by_dave83xlx.jpg?direct&400|1989_xl883_w_jmc_swingarm_pic4_by_dave83xlx.jpg}}
-  * **Eccentric Adjuster Pinch Bolt Torque**. Since there isn't any instructions floating around, the torque on the these bolts has been a concern. The problem is you need the pinch bolt tight enough to stop eccentrics from moving under torque. But you don't want so much you risk causing pressure to crack the alloy arm. So Dave83xlx of the XLForum did some testing to find the results below using the existing bolts it came with. ((https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/frame-mount-evo-sportster-talk-1986-2003-models/4960966-jmc-swingam-eccentric-adjusters))  The pinch bolt original position was marked on both sides of the arm. The bolts were removed and re-installed using a "beam" type torque wrench to tighten the screws back to their original position at the marked line. The result was 30 ft-lbs (40 nm). The bolt is a 10mm with course threads.
+  * **Eccentric Adjuster Pinch Bolt Torque**. Since there isn't any instructions floating around, the torque on the these bolts has been a concern. The problem is you need the pinch bolt tight enough to stop eccentrics from moving under torque. But you don't want so much you risk causing pressure to crack the alloy arm. So Dave83xlx of the XLForum did some testing ON A USED SWINGARM to find the results below using the existing bolts it came with. ((https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/frame-mount-evo-sportster-talk-1986-2003-models/4960966-jmc-swingam-eccentric-adjusters))  The pinch bolt original position was marked on both sides of the arm. The bolts were removed and re-installed using a "beam" type torque wrench to tighten the screws back to their original position at the marked line. The result was 30 ft-lbs (40 nm). The bolts are 10mm with course threads. With the actual manufacturers torque spec not known, this is only a recording of the torque setting used for THIS swingarm. Use your own best judgement when deciding what torque to use. \\
 {{:techtalk:ref:susp:1989_xl883_w_jmc_swingarm_eccentric_bolt_torque_by_dave83xlx.jpg?direct&400|1989_xl883_w_jmc_swingarm_eccentric_bolt_torque_by_dave83xlx.jpg}}