Progess so far on cam chain tensioner repair. I was able to get the cam chain tensioner out and remove the old spring today.
I measured the spring constant (force and deflectoin) for the old and new springs. The old spring was had a srping constant of 1/10th the new spring. So at the same displacement the new spring will provide 10X the force (that's huge). SO - this is good news as it is looking like the spring is the cause of the chain noise - time will tell. The cylinder head cover slipper didn't have any marks on it at all and the front slipper has very negligle wear on it (you have to look close to even see - just a short mark about 0.005" deep). The cam sprocket is interesting - the timing marks are not perpendicular to the axis that goes through the bolt holes - see attached. http://groups.google.com/group/nighthawk_lovers/web/NH%20650%20CAM%20SPROCKET_TIMING%20Marks.jpg Well - next step is to bleed the tappets and I will be doing that tommorrow - thanks to the tip from Dennis H. (don't need to wait for the tappet bleeding tool). With any luck i can get it finished tomorrow. Paul --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en -~----------~----~----~----~------~----~------~--~---
