Rich B1
Veteran Member
- Joined
- Jan 28, 2017
- Messages
- 1,122
- Location
- Stone Creek, OH
- Tractor
- NH TC21D, 3 Craftsman GT’s…..old but tough, AGT Industrial QH 12
Good morning! 41 now, supposed to get to 54 today. Supposed to stay decent overnight then go down tomorrow.
A strip of rolling paper is still the accepted tool for setting timing on a Lucas magneto with a face cam. Lucas magnetos on motorcycles are odd beasts. The points are attached to the armature and rotate with the armature. When setting the timing, the rolling paper should just become free when the points are being lifted by the pushrod from the face cam. Crude, but it works.
But never got that far yesterday. Still sorting out the magneto mounting. There is some wear in the mounting pad and have been shimming the magneto to get the drive gear backlash right. The magneto also wants to twist in the mounting slots when the mounting strap is tightened. So started making a wedge to put between the cylinder base and magneto base to keep things aligned. Plus the seal is a touch small for the bore in the engine cases. So will need to address that issue. It is always something when playing with a 70 year old motorcycle
Not sure about today…l will take it as it happens
Everyone stay safe out there!
A strip of rolling paper is still the accepted tool for setting timing on a Lucas magneto with a face cam. Lucas magnetos on motorcycles are odd beasts. The points are attached to the armature and rotate with the armature. When setting the timing, the rolling paper should just become free when the points are being lifted by the pushrod from the face cam. Crude, but it works.
But never got that far yesterday. Still sorting out the magneto mounting. There is some wear in the mounting pad and have been shimming the magneto to get the drive gear backlash right. The magneto also wants to twist in the mounting slots when the mounting strap is tightened. So started making a wedge to put between the cylinder base and magneto base to keep things aligned. Plus the seal is a touch small for the bore in the engine cases. So will need to address that issue. It is always something when playing with a 70 year old motorcycle
Not sure about today…l will take it as it happens
Everyone stay safe out there!