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techtalk:ref:tools107 [2019/01/20 01:40]
hippysmack xlforum 		techtalk:ref:tools107 [2019/01/20 01:59]
hippysmack [Reamers]
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 ===== Reamers ===== ===== Reamers =====
 **Cam cover bushings**: \\ **Cam cover bushings**: \\
 +The reamers for the cam cover 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: \\
 +
 9/16" for the pinion shaft bushing. \\ 9/16" for the pinion shaft bushing. \\
 1-1/8" for #2 cam bushing. \\ 1-1/8" for #2 cam bushing. \\
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 **Case bushings**: \\ **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: \\
 +
 11/16" for #1-#4 cam bushings. \\ 11/16" for #1-#4 cam bushings. \\
  

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