- Sun Mar 08, 2020 10:09 pm
#88265
For those who picked up my earlier posts it was the magneto that was gone. It has now been repaired and refurbished and needs refitting.The bike is 1957 Redditch. I understand that the process from compiling various internet sources is as follows.
Set engine to TDC - 1/2 to 7/16 inches pre TDC on compression stroke (350 cc engine)
Refit magneto with relevant 3 screws through timing cover and gasket. Set points gap at .015 though have been told this was done by the service centre when magneto repaired but will be checked.
Set auto advance mechanism to maximum advance by rotation of 2 halves against springs and hold in position with appropriate wire tie
Insert thin paper (e.g.Rizla) between points and turn the magneto until paper can just be pulled out. My magneto is anticlockwise so is the done on timing cover side and move magneto shaft anticlockwise as I presume this will open points? I understand on no account must cam be disturbed from its position as magneto efficiency will be affected. I don;t want to do anything which will create this problem.
Put auto advance on magneto shaft and tighten auto advance nut clockwise pulling it onto magneto shaft (I only have a bolt (no screw which may be on later models) through auto advance as per 1957 parts book). How do I stop magneto turning as I tighten since am presuming this would undo my points setting earlier or will auto advance unit teeth being engaged in idle pinions etc and maybe bike in gear prevent this?
Once all tight recheck points gap.
If all OK above re-attach timing cover and proceed to restart bike and drive away (here being very optimistic that have done things right) .
Any comments appreciated as normal as first time done job so learning from very limited basic skills. Many thanks as normal Hugh
.
Set engine to TDC - 1/2 to 7/16 inches pre TDC on compression stroke (350 cc engine)
Refit magneto with relevant 3 screws through timing cover and gasket. Set points gap at .015 though have been told this was done by the service centre when magneto repaired but will be checked.
Set auto advance mechanism to maximum advance by rotation of 2 halves against springs and hold in position with appropriate wire tie
Insert thin paper (e.g.Rizla) between points and turn the magneto until paper can just be pulled out. My magneto is anticlockwise so is the done on timing cover side and move magneto shaft anticlockwise as I presume this will open points? I understand on no account must cam be disturbed from its position as magneto efficiency will be affected. I don;t want to do anything which will create this problem.
Put auto advance on magneto shaft and tighten auto advance nut clockwise pulling it onto magneto shaft (I only have a bolt (no screw which may be on later models) through auto advance as per 1957 parts book). How do I stop magneto turning as I tighten since am presuming this would undo my points setting earlier or will auto advance unit teeth being engaged in idle pinions etc and maybe bike in gear prevent this?
Once all tight recheck points gap.
If all OK above re-attach timing cover and proceed to restart bike and drive away (here being very optimistic that have done things right) .
Any comments appreciated as normal as first time done job so learning from very limited basic skills. Many thanks as normal Hugh
.