<VV> Cam shaft bearing wear in the block
BBRT
chsadek at adelphia.net
Mon Feb 6 11:19:37 EST 2006
We probably have to figure a way to fix it without the oversize (o.d.) cam
bearing surfaces unless there is room on the bearing surfaces of the
existing cam cores. There aren't any more other than a few cam core stashes
that anyone knows about. A core needs to be made of the nodular iron? so
lifters wear properly. (Roller cams don't have the issue-before you ask...).
One can't just CNC a steel crank for a regular lifter engine unless you use
special lifters. We need solutions that allow us to fix the problem; the
block cam bore wear.
Chuck S
BBRT
----- Original Message -----
From: "by way of Harry Jensen <hljensen at comcast.net>" <Silveyyevlis at aol.com>
To: "Virtual Vairs" <virtualvairs at corvair.org>
sounded as if some one was in there pounding with a hammer.
>
> An engine teardown revealed that the rear cam gearing bore in the block
> was 0.010 inch diameter over size.
.
.
.
.. For all of the bearings have the Corvair parts suppliers have cams
> made with a high oversize bearing OD's and then have them ground to fit
> the block.
>
> There is room for many ideas and we need to pursue the answer to this
> problem now not later. Smitty said it right!
>
> Tom Silvey
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