There is a funky-looking slot-head grub-screw threaded into the lower timing-chest side of my crank case.
I am curious what the purpose was ? It must have been there for a reasonâ?perhaps relic of an oil way or breather outlet that had a purpose on an earlier model ?
It is illustrated in my 1950 Norton Spare Parts list: see the photos.
The illustration shows the screw should plug the holeâ?but why have the hole there in the first place?
Can anybody enlighten me please ?
Thanks again, Grant MacNeill, Toronto
Attachments IMG_2255.JPG IMG_2263.JPG technical1-As Michael says, almost ce…
As Michael says, almost certainly plugging a drilling. Yours looks as though someone has tried to remove it.....
From its position it is al…
From its position it is almost certainly a cross drilling for the oil return passage from the bottom of the crankcase.
Colin
Thanks for the input. No d…
Thanks for the input. No doubt a relic of the manufacturing process. Another minor Norton mystery.
Lets all forget I even mentioned it eh (grin)
Grant in Toronto.
Hey Grant,
I think it's just a plug for an oil-way drilling. No other way to do it.
Mike