Re: [T3] delayed maintenance

[Russ wolfe <russella@prairieinet.net>]

On Sun, 2002-09-08 at 20:44, Jim Adney wrote:
> On 7 Sep 2002, at 22:40, Keith Park wrote:
> 

> 
> BTW, I just mailed John an article from NASA Tech Briefs about 
> carbon/carbon composite pistons and cylinders. They are experimenting with 
> these because they can be made with very tight clearances because they 
> expand and contract the same. The clearances are so tight that it appears 
> that rings are not necessary, and emissions are reduced because the dead 
> space outside the piston and above the rings is eliminated, because of the 
> tight clearances again.
> 
> The article caught my attention because the engine construction was the 
> same as ours: the cylinders are just clamped between the head and the 
> case by long studs.
> 
Mahle is making some pistons with carbon fiber imbeded in the skirts for
a wear surface. We have some samples at work.

Jim, can you forward that article to me too.


-- 
Russ Wolfe
'66 FB MT (It drove)
'71 FB AT 
'65 Bug (not running)
russw@classicvw.org
http://www.classicvw.org



------------------------------------------------
To unsubscribe, E-mail to: <type3-off@vwtype3.org>
For more help, see http://vwtype3.org/list/