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techtalk:evo:engmech04b [2019/01/24 16:13] hippysmack [Tools] |
techtalk:evo:engmech04b [2019/07/28 02:08] hippysmack [Spring Clearance] |
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|After clearancing. ((photo by aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?p=5489961))|Top view ((photo by isiahstites of the XLFORUM http://xlforum.net/forums/showthread.php?t=51598&page=10))| | |After clearancing. ((photo by aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?p=5489961))|Top view ((photo by isiahstites of the XLFORUM http://xlforum.net/forums/showthread.php?t=51598&page=10))| | ||
|{{:techtalk:evo:engmech:rocker_box_clearance_2_by_aswracing.jpg?direct&200|}}|{{:techtalk:evo:engmech:rocker_box_clearance_2_by_isiahstites.jpg?direct&300|}}| | |{{:techtalk:evo:engmech:rocker_box_clearance_2_by_aswracing.jpg?direct&200|}}|{{:techtalk:evo:engmech:rocker_box_clearance_2_by_isiahstites.jpg?direct&300|}}| | ||
+ | |||
+ | | Another rocker clearancing project. ((photos by cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=44421&page=13)) ||| | ||
+ | |{{:techtalk:evo:engmech:clearancing_rocker_box_2_by_cjburr.jpg?direct&300|}}|{{:techtalk:evo:engmech:clearancing_rocker_box_1_by_cjburr.jpg?direct&300|}}|{{:techtalk:evo:engmech:clearancing_rocker_box_3_by_cjburr.jpg?direct&300|}}| | ||
===== Arm Clearance ===== | ===== Arm Clearance ===== | ||
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|{{:techtalk:evo:engmech:inspecting_rocker_box_shaft_bore_15_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:inspecting_rocker_box_shaft_bore_16_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:engmech:inspecting_rocker_box_shaft_bore_15_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:engmech:inspecting_rocker_box_shaft_bore_16_by_hippysmack.jpg?direct&300|}}| | ||
- | ==== Check the oiler hole in the exhaust rocker arm ==== | + | ==== Check the valve oiler hole in the rocker arm ==== |
- | The exhaust side rocker arms have one tiny little hole that the intake rockers don't have. ((DirtyCory of the XLFORUM http://xlforum.net/forums/showpost.php?p=3945019&postcount=317)) \\ | + | The valve side arm has one tiny little hole that the intake rockers don't have. ((DirtyCory of the XLFORUM http://xlforum.net/forums/showpost.php?p=3945019&postcount=317)) \\ |
- | This tiny little hole is for extra oiling for cooling exhaust side. \\ | + | This tiny little hole is for extra oiling for cooling the valve(s). \\ |
While you have the rocker arms out, \\ | While you have the rocker arms out, \\ | ||
You can use a welding tip cleaner or other small wire to poke down this hole to clean or verify the hole is clear. \\ | You can use a welding tip cleaner or other small wire to poke down this hole to clean or verify the hole is clear. \\ | ||
- | {{:techtalk:evo:engmech:exhaust_rocker_arm_by_dirtycory.jpg?direct&300|}} ((photo by DirtyCory of the XLFORUM http://xlforum.net/forums/showpost.php?p=3945019&postcount=317)) {{:techtalk:evo:engmech:cleaning_oiler_hole_in_exhaust_rocker_arm_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) \\ | + | {{:techtalk:evo:engmech:exhaust_rocker_arm_by_dirtycory.jpg?direct&300|}} ((photo by DirtyCory of the XLFORUM http://xlforum.net/forums/showpost.php?p=3945019&postcount=317)) {{:techtalk:evo:engmech:cleaning_oiler_hole_in_rocker_arm_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) \\ |
===== Visual Inpections ===== | ===== Visual Inpections ===== | ||
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**Note**: The bushing reamer (94804-57) has right hand blades. Always turn it to the right (clockwise) when installing, reaming or removing it from the bushings. \\ | **Note**: The bushing reamer (94804-57) has right hand blades. Always turn it to the right (clockwise) when installing, reaming or removing it from the bushings. \\ | ||
- | I would suggest to mic the bushings closely and several times to be sure you need to before replacing them. ((Hippysmack of the XLFORUM http://xlforum.net/forums/showthread.php?t=2072192)) \\ | + | A helpful suggestion is to mic the bushings closely and several times to be sure you need to before replacing them. ((Hippysmack of the XLFORUM http://xlforum.net/forums/showthread.php?t=2072192)) \\ |
If the rocker arm pads or the pushrod cups are worn badly, it'd probably be best to just replace the arms instead. \\ | If the rocker arm pads or the pushrod cups are worn badly, it'd probably be best to just replace the arms instead. \\ | ||
New rocker arms come with the bushings installed and sized. \\ | New rocker arms come with the bushings installed and sized. \\ | ||
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As for the ticking / tapping noise mentioned above, some people rather like the noise and others don't. \\ | As for the ticking / tapping noise mentioned above, some people rather like the noise and others don't. \\ | ||
- | It's important to note that no engine needs these. ((DK Custom of the XLFORUM http://xlforum.net/forums/showthread.php?t=1935736&page=5)) \\ | + | You can inspect the shafts during operation to see if this is happening to your shafts. \\ |
- | There is nothing detrimental to the engine when it is ticking because of the rocker shafts banging into the bolts. \\ | + | Remove the top (and middle if applicable) rocker box cover. |
- | The only reason they would be "needed" is if the ticking bothers the owner of the bike. | + | Clean the area around the shaft ends and lower rocker box on one side of the cylinder. \\ |
+ | Draw a straight line with a marker across the shaft end and onto the rocker box. \\ | ||
+ | Start the engine and watch the area of the line between the shaft and rocker box. \\ | ||
+ | If the shaft is turning, you'll see back and forth movement of the straight line on the shaft. \\ | ||
+ | | Checking rocker arm shaft movement ((photo by billyj7175 of the XLFORUM)) | | ||
+ | |{{:techtalk:evo:engmech:rocker_box_by_billyj7175_annotated_by_hippysmack.jpg?direct&300|}}| | ||
At this [[http://www.dkcustomproducts.com/rocker-lockers-for-harley-davidson-twin-cam-motors-dk-rl-tc.htm|LINK]] there are two videos. \\ | At this [[http://www.dkcustomproducts.com/rocker-lockers-for-harley-davidson-twin-cam-motors-dk-rl-tc.htm|LINK]] there are two videos. \\ | ||
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Aftermarket rocker bolt spacers are made to close the gap between the bolts and the shafts. \\ | Aftermarket rocker bolt spacers are made to close the gap between the bolts and the shafts. \\ | ||
+ | It's important to note that no engine needs these. ((DK Custom of the XLFORUM http://xlforum.net/forums/showthread.php?t=1935736&page=5)) \\ | ||
+ | There is nothing detrimental to the engine when it is ticking because of the rocker shafts banging into the bolts. \\ | ||
+ | The only reason they would be "needed" is if the ticking bothers the owner of the bike. | ||
+ | |||
Two bushings, or spacers, are used for each rocker box. \\ | Two bushings, or spacers, are used for each rocker box. \\ | ||
They are installed into the rocker box to head mounting holes on the pushrod side next to the rocker arms. \\ | They are installed into the rocker box to head mounting holes on the pushrod side next to the rocker arms. \\ |