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Need Help with TDC and Cam Timing for 77 Sportster
Engine Mechanical TopicsDiscussion for motor builds, cams, head work, stripped bolts and other engine related issues. The good and the bad. If it goes round and around or up and down, post it here.
Need Help with TDC and Cam Timing for 77 Sportster
1977 Ironhead Sportster 1000
Ok the issue im having is I have my front cylinder on TDC confirmed that im spark plug hole and 3rd pic a dot in the timing hole. Now in the 2rd pic theres a little indention in the pinion shaft some say that needs to be at the 11o clock then install the gear with the line at the 11o clock also but if I put that indention at 11o clock then the rear cylinder will be at TDC and in the hole will be a line and not a dot, then put in all cam gears in and make sure all lines on cam gears are lined up correctly which is simple to do.
What im wondering is should I even worry about that grove in the pinion shaft and is there a purpose for it, like what I did above?
Which mark in the hole should I use?
DOT or LINE to use?
Front TDC or Rear TDC to time?
Need Help with TDC and Cam Timing for 77 Sportster
