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--- techtalk:ref:tools147 [2020/04/28 23:00]
hippysmack ↷ Links adapted because of a move operation
+++ techtalk:ref:tools147 [2020/08/24 23:19]
hippysmack [Rocker Arm Bushing Reamer (94804-57)]
@@ Line 41: / Line 41: @@
 |  "Jims" makes this reamer referenced to HD part number (94804-57) ((photos by Hippysmack))  ||
 |{{:techtalk:ref:tools:jims_94804-57_rocker_bushing_reamer_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:jims_94804-57_rocker_bushing_reamer_2_by_hippysmack.jpg?direct&300|}}|
+===== Cam Bushing Reamers =====
+\\
+==== Outer Cam Bushings ====
+(AKA Cam Cover Bushings): \\
+The reamers for the cam cover bushings (#1, #3 and #4) need to be chamfered (chucking) reamers. \\
+The ends have a short chamfer that will enter the blind bushing bore and not hit the rear of the bore before finished cutting the bushings. \\
+The reamer for #2 cam can be a tapered bridge reamer on models with nosecone ignitions. \\
+(the hole for #2 cam is open  to atmosphere so the reamer has plenty of room to extend past the bushing) \\
+Else it will also need to have a chamfered end. \\
+Cam cover reamer sizes: \\
+-1990:
+/16" for the pinion shaft and idler bushing. \\
+-1/8" for #2 cam bushing. \\
+/16" for #1, #3 and #4 cam bushings. \\
+-up:
+/8" for the pinion shaft bushing. \\
+-1/8" for #2 cam bushing. \\
+/16" for #1, #3 and #4 cam bushings. \\
+==== Outer Cam Bushings ====
+(AKA Case Bushings): \\
+A single reamer is all that is needed for the case side bushings as all the cam bushings are the same size in the case. \\
+The normal way of reaming the case bushings is to split the case and ream case bushings by using the cover bushings as a guide. \\
+This will require a bridge reamer with a tapered end. \\
+If reaming the case bushings from the outside of the cover bushings, you'll need a chamfered (chucking) reamer with a short chamfer. \\
+The long taper will go in and touch the flywheel before the blades have a chance to cut into the reamer. \\
+So reaming the case side bushings will not be possible with a bridge reamer from the outside of the cover.
+Case bushing reamer size: \\
+/16" for #1 thru #4 cam bushings. \\
+|  Cam bushing reamers ((photo by decman of the XLFORUM http://xlforum.net/forums/showthread.php?postid=5016753))  |
+|{{:techtalk:ref:tools:cam_bushing_reamers_by_decman.jpg?direct&300|}}|
 ===== Calculating Pre-Ream Drill Hole Sizes =====

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