Hi Guest!
Hey - did you know if you click on the title of a thread it will take you to the first unread post since you last visited that thread?
but were afraid to ask: 
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smilie in place of the real @
Pretty Please - add it to our Events forum(s) and add to the calendar! >> 
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OK, here's the dilemma:
According to the shop manuals, the front bearing on the A-series camshaft (but for some reason, not the other two) should be reamed to the precise size. The bugeye manual shows a special reamer which includes pilots to get it lined up perfectly. The later manuals mention reaming the bearing, but say nothing more. The Haynes manual doesn't even mention it.
So, does this bearing in a 1275 need to be reamed? And, why not the inner and rear-end bearings? If so, can it be done with an adjustable reamer or do you need to use something like the pilots to keep it concentric with the other bearings?
It seems unlikely that anyone still has that special reamer. And, since the bearing diameter is an odd size (1.667") I can't imagine anyone makes one that size.
According to the shop manuals, the front bearing on the A-series camshaft (but for some reason, not the other two) should be reamed to the precise size. The bugeye manual shows a special reamer which includes pilots to get it lined up perfectly. The later manuals mention reaming the bearing, but say nothing more. The Haynes manual doesn't even mention it.
So, does this bearing in a 1275 need to be reamed? And, why not the inner and rear-end bearings? If so, can it be done with an adjustable reamer or do you need to use something like the pilots to keep it concentric with the other bearings?
It seems unlikely that anyone still has that special reamer. And, since the bearing diameter is an odd size (1.667") I can't imagine anyone makes one that size.
