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-   -   piston difference 2.0E and 2.0S (http://forums.pelicanparts.com/porsche-911-technical-forum/167922-piston-difference-2-0e-2-0s.html)

thor 06-16-2004 04:52 AM

piston difference 2.0E and 2.0S
 
hello ,

do you have photos or sketches concerning 2.0E and 2.0S pistons ? I know the difference in the lower part (more longer ) but the 2.0E is it domed or not ? *
thanks

jluetjen 06-16-2004 07:38 AM

This is per the factory shop manuals. Note that the E and L pistons are similar - the change in CR was 0.1.

http://forums.pelicanparts.com/uploa...1087400224.jpg

It's interesting that the L pistons have the oil rings at the bottom of the piston.:confused:

thor 06-16-2004 11:23 PM

thanks
yes it 's strange for the L piston !!!!
do you think the last sketch ( for a T piston ) is similar for a E piston ? it seems that mine are theses ones (domed with cut out for valves but not S one)
I want to be sure that my engine has not S piston . I have all the bill since 1969 but you know ..sometimes there is some surprise !!! :)

jluetjen 06-17-2004 03:09 AM

Do you have your pistons out of the case or not? On the 2.0, all of the pistons appear to have valve reliefs. But I doubt that the E pistons would look like the T's since they would not have the E's CR nor the space around the valves to work with the E cams.

thor 06-17-2004 03:19 AM

yes , I will try to put this weekend a photo online.
There is cut out for valves and they are domed . :)


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