Warning: Parts Bike Ahead (Back)
Rebuilding 1937 Harley-Davidson W-model 45” flathead motorcycle photoblog internet website log. I'll fill in older updates as I go along.
| Fex | Fin | Rin | Rex | |
|---|---|---|---|---|
| Lift(mm) (inch) |
8,99 .354" |
8,90 .350" |
8,90 .350" |
8,93 .351" |
| Measured at 0,25 mm from lowest point | ||||
| Open | 55° BBDC | 34° BTDC | 32° BTDC | 48° BBDC |
| Close | 15° ATCD | 67° ABDC | 71° ABDC | 20° ATCD |
| Duration | 250° | 281° | 283° | 248° |
| Measured at 0,35 mm from lowest point | ||||
| Open | 54° BBDC | 31° BTDC | 28° BTDC | 45° BBDC |
| Close | 10° ATCD | 63° ABDC | 67° ABDC | 17° ATCD |
| Duration | 244° | 274° | 275° | 242° |
Using the "WLDR + extra lift" cams from Samwel (nominal lift 8,8mm). Measured directly at the tappets.
Looks like the front cylinder is ~ 4-6° ahead of the rear, but this is probably close enough to be usable (at least for the first year).