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techtalk:ref:tools107 [2019/01/20 01:40] hippysmack xlforum |
techtalk:ref:tools107 [2019/01/20 02:02] hippysmack [Reamers] |
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===== Reamers ===== | ===== Reamers ===== | ||
**Cam cover bushings**: \\ | **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: \\ | ||
+ | |||
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**: \\ | ||
- | 11/16" for #1-#4 cam 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 thru #4 cam bushings. \\ | ||
| Cam bushing reamers ((photo by decman of the XLFORUM http://xlforum.net/forums/showthread.php?postid=5016753)) | | | Cam bushing reamers ((photo by decman of the XLFORUM http://xlforum.net/forums/showthread.php?postid=5016753)) | |