Differences

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--- techtalk:ref:tools140 [2018/10/18 20:18]
hippysmack [Tools for Dialing In (Degree-ing) Your Cams]
+++ techtalk:ref:tools140 [2024/01/24 04:09]
hippysmack
@@ Line 4: / Line 4: @@
 The main components used for degreeing cams are a piston stop, degree wheel and a dial caliper.
-|{{:techtalk:ref:tools:piston_stop_by_jorgen.jpg?direct&300|}}|{{:techtalk:ref:tools:degree_wheel_by_jorgen.jpg?direct&300|}}|{{:techtalk:ref:tools:dial_caliper_by_jorgen.jpg?direct&300|}}|
+|{{:techtalk:ref:tools:piston_stop_by_jorgen.jpg?direct&300|}}|{{:techtalk:ref:tools:degree_wheel_by_jorgen.jpg?direct&300|}}|
+====== Getting the Right Dial Indicator ======
+The dial indicator doesn't have to be expensive. \\
+It just has to be accurate, placed properly and to where the gauge body won't move. \\
+The indicator has to be held in place by the stem instead of the back cover to fit properly in the lifter hole. \\
+There is no room between the cylinder and the lifter hole for a mount in the rear of the indicator. \\
+See below how to [[techtalk:ref:tools140#temporary_backing_plate_mod|temporarily change the backing plate]] on some indicators for this application. \\
+|An indicator with the post attachment on the back will not fit in the lifter hole vertically. ((photos by Hippysmack))||Steel plate bolted against the gearcase cover for a \\ magnetic base holder and digital indicator. ((photo by Jorgen of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/92792-cam-choices/page4?t=761410&highlight=degreeing+cams&page=4))|
+|{{:techtalk:ref:tools:indicator_mod_for_degreeing_cams_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:indicator_mod_for_degreeing_cams_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:dial_caliper_by_jorgen.jpg?direct&300|}}|
+The probe on the indicator has to be vertical to and inline with the lifter (or cam lobe) to give accurate readings. \\
+Also to keep from bending the probe as the lifter rises. \\
+It can be placed in the center or on the outside lip of the lifter. \\
+It also has to have enough travel of the probe so it won't bottom out before you get the measurements you need. \\
+The cam lobe will probably have more than a 1/4" so an indicator with only that much lift will not work.
+A 1/2" probe travel will work; \\
+But, you have to zero the dial before installing it to make sure you give the cam enough initial travel room. \\
+An indicator with a 1" travel works good. \\
+You can set it down on the lifter 1 or 2 tenths, zero the dial from there and still have plenty of travel left for testing. \\
+It gives more flexibility in setup. \\
+===== Temporary Indicator Backing Plate Mod =====
+For dial indicators with the mount on the back cover, you can replace the cover with tape to allow more room between the indicator and the cylinders.
+|You can take the back off, tape it off to keep dirt out and use a holder on the stem and it'll work fine. ((photos by Hippysmack))|||
+|{{:techtalk:ref:tools:indicator_mod_for_degreeing_cams_3_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:indicator_mod_for_degreeing_cams_4_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:indicator_mod_for_degreeing_cams_6_by_hippysmack.jpg?direct&300|}}|
+|You can place the screws in a piece of tape and store them for later. ((photos by Hippysmack))||
+|{{:techtalk:ref:tools:indicator_mod_for_degreeing_cams_7_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:indicator_mod_for_degreeing_cams_12_by_hippysmack.jpg?direct&300|}}|
+|Tape the inside of the cover, then cut around it. Remove the circle piece of tape from the cover, place the sticky side up on the back of the indicator. \\ Then tape that down. This keeps the sticky side from getting stuck on internal moving parts. ((photos by Hippysmack))|||
+|{{:techtalk:ref:tools:indicator_mod_for_degreeing_cams_8_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:indicator_mod_for_degreeing_cams_9_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:indicator_mod_for_degreeing_cams_10_by_hippysmack.jpg?direct&300|}}|
+|Make sure to leave enough on the sides to hold down the temporary tape backing. \\ Now this indicator can be used in the lifter hole. ((photos by Hippysmack))||
+|{{:techtalk:ref:tools:indicator_mod_for_degreeing_cams_11_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:indicator_mod_for_degreeing_cams_13_by_hippysmack.jpg?direct&300|}}|
+====== Tool Posts / Indicator Holders ======
+^Homemade indicator holder from Nylon flat stock ((photos by Hippysmack))^
+|{{:techtalk:ref:tools:dial_indicator_holder_1_by_hippysmack.jpg?direct&300|}}|
+^Homemade indicator tool post from scrap steel and aluminum ((photos by Hippysmack))^
+|{{:techtalk:ref:tools:dial_indicator_post_6_by_hippysmack.jpg?direct&300|}}|
+|{{:techtalk:ref:tools:dial_indicator_post_7_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:dial_indicator_post_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:dial_indicator_post_3_by_hippysmack.jpg?direct&300|}}|
+|{{:techtalk:ref:tools:dial_indicator_post_4_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:dial_indicator_post_5_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:dial_indicator_post_1_by_hippysmack.jpg?direct&300|}}|
 ====== Installing a Degree Wheel on the Pinion Shaft ======
 ===== Brass Pipe Fitting =====
@@ Line 45: / Line 94: @@
   * The hole should be drilled with 2-3 stepped drill sizes and allowing the bushing to cool before each bigger size. \\ * Drilling with the final size pre-drill bit (first) will most likely end with the hole being too big to ream or to fit snug on the pinion shaft *
 |Front faced and pre-drilled for a flat wheel mount. ((photo by Hippysmack of the XLFORUM http://xlforum.net/forums/showthread.php?t=1999633&highlight=cam+degreeing&page=7))|Piece turned 180° and pre-drilled. ((photo by Hippysmack of the XLFORUM http://xlforum.net/forums/showthread.php?t=1999633&highlight=cam+degreeing&page=7))|Final pre-drill with 35/64" bit. ((photo by Hippysmack of the XLFORUM http://xlforum.net/forums/showthread.php?t=1999633&highlight=cam+degreeing&page=7))|
@@ Line 55: / Line 103: @@
 |If made carefully, there is no need for a set screw on the nylon bushing. It's either the slip fit, chamfer on the inside rear of the hole from the drill bit, trapped air \\ when the bushing is installed, composition of the nylon or a combination of these things  that holds the bushing firm when pushed onto the pinion shaft. ((photos by Hippysmack of the XLFORUM http://xlforum.net/forums/showthread.php?t=1999633&highlight=cam+degreeing&page=7))|||
 |{{:techtalk:ref:tools:nylon_degree_wheel_adapter_7_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:nylon_degree_wheel_adapter_8_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:nylon_degree_wheel_adapter_9_by_hippysmack.jpg?direct&300|}}|

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