<VV> White pushrod tubes

[Dave Morris]

I'll just pose these simple questions:

1. What material are the heads and case made of?
2. What material are the pushrod tubes made of?
3. What effect does heat have on the expansion/contraction of dissimilar 
metals?
4. What effect does a white coating have on the absorption of heat on a 
metal next to a heat source?
5. Are the pushrod tubes normally a major source of oil leaks in a Corvair?
6. Would it be smart to find out what others have done to reduce oil leaks?

Dave Morris


At 02:37 PM 2/4/2005 -0500, you wrote:

>Sure. green works too. Probably this discovery was made just after replacing
>the O rings and painting the tubes white, and it was the white paint that
>made the difference.
>
>Harry Yarnell
>perryman garage and orphanage
>perryman, MD
>hyarnell1@earthlink.net
>
>----- Original Message -----
>From: "N. Joseph Potts" <pottsf@msn.com>
>To: "Dave Morris" <BigD@davemorris.com>; <virtualVairs@corvair.org>
>Sent: Friday, February 04, 2005 2:23 PM
>Subject: RE: <VV> An interesting thing.....
>
>
> > How does painting pushrod tubes white prevent leaks? Might green work the
> > same way?
> >
> > Joe Potts
> > Miami, Florida USA
> > 1966 Corsa coupe 140hp 4-speed with A/C
> >
> > -----Original Message-----
> > From: virtualvairs-admin@corvair.org
> > [mailto:virtualvairs-admin@corvair.org]On Behalf Of Dave Morris
> > Sent: Friday, February 04, 2005 12:47 PM
> > To: virtualVairs@corvair.org
> > Subject: Re: <VV> An interesting thing.....
> >
> > snip
> > We paint the pushrod tubes white because Richard Finch in his book "How to
> > keep your Corvair alive" suggests that as a way to prevent leaks around
>the
> > o-rings.  Almost ALL of us are painting them white.
> >
> > snip
> >
> > Dave Morris
> >  _______________________________________________
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