<VV> Pushrod tube bores

[Rick Norris]

And another thing,
The edges of those holes the push rod tubes go through are very sharp. 
During engine builds I relieve those edges. I'm also extra careful when 
inserting the tubes so as not to nick an O ring.
Always put some oil or light grease on them too.
I use a deep socket that will just fit in the end to tap them in place.

Rick Norris
#36 Sunoco Corvair
www.corvairalley.com
>I have engineering drawings of heads and blocks and there is no taper to 
>the
> O-ring bores.  There is a big chamfer to help get the O-ring compressed 
> but
> once the tube is in place it is in a straight bore and floats back and 
> forth
> between the block shoulder and the steel pushrod guide.  Maybe Ray has the
> wrong O-rings that aren't being squeezed enough.  I second the suggestion 
> to
> use a socket to seat the tubes in place before the plates are installed.
> Tubes go short end to the block, plates go "U" out and make sure the
> pushrods have the side oil hole out to lube the rocker balls.
> Clark Hartzel
>
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