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[Jack Wheeler]
David, I checked my copy of the drawing over the weekend. You are right,
the dimensions don't add up. If I add the external dimensions (at the top
of the drawing) I get an overall length of 3.9375". If I add the internal
dimensions (bottom of drawing) I get 3.8875", or a difference of .05" .
Does this agree with what you came up with?
I suggest you use the internal dimensions as shown on the drawing, and
adjust the external dimensions to agree. Also, there is one modification
we had to do to the hubs that is not shown on the drawing. As I recall,
the stock Corvair hub has a dust shield which presses on to the unner end
of the hub, and covers the grease seal. In order to accommodate this dust
shield, we had to cut another O/D on the inner end of the hub that comes
back about 1/4" from the end of the hub. The drawing shows this as a
tapered surface, but the first 1/4" needs to be a straight cut(parallel
with the O/D surface of the hub).
I don't recall what this O/D needs to be, but you might try to find a '65 -
'68 Corvair outer rear hub dust shield and determine the appropriate
diameter. Or you might ask Don Marshall (on the FOT list) to measure this
diameter on one of the spare hubs he has, so you can include it on the
drawing. Let me know how you make out.
Jack:
I just finished putting the drawing you sent me onto auto cad. I
found a problem with the dimensioning for the inside. The first dimension
on the left at the bottom is called out as being .375". But if you add up
the dimensions from right to left it will comes out to .425". Now as the
dimensions are what is called stacked ( one upon another and not from a
common point and working out) it's very hard to tell exactly were the error
is.
If you add stuff from left to right the other end comes out wrong.
If you add from the ends to the center the middle comes out wrong... you
get
the Idea. Well, any guidance you might shed on this would be appreciated.
Thank You
David W
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