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-   -   All 6 cylinder base gaskets leak (http://forums.pelicanparts.com/911-engine-rebuilding-forum/178823-all-6-cylinder-base-gaskets-leak.html)

Wayne 962 08-25-2004 08:57 PM
Quote:
Originally posted by DonE
I ordered 98mm 3.2L cylinders from EBS as part of a 3.4L turbo upgrade. The cylinders will fit into the stock case. Do I need o-rings since the cylinders are considered fully finned? Right now, I am just planning on the copper gaskets.
I don't think that the cylinders you're referring to are indeed the fully finned ones that are from the 90+ motors...

-Wayne

Porschephd 08-27-2004 06:09 AM
No Don your cylinders are not the Oring type. Yours are flat surfaced and are like the original. The C2T cylinder is all that Mahle offers now for the 3.3. The old style (who would want anyway) is no longer available. If you machined the cylinder flat you would have to use one hell of a base gasket. Just use the base gaskets and Orings and the system will not leak.

DonE 08-27-2004 06:31 AM
Use the o-rings even though there is no groove to accept the o-ring? These are 3.2L cylinders, bored to 98mm and re-nikasil'd with no o-ring grooves.

Porschephd 08-27-2004 06:36 AM
No sir, your setup does not use Orings, use the copper base gaskets in the upper end kit.

Brian's setup does use o-rings.


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