[s-cars] X-plugs, O-rings, and Pentosin... all over the place!

[Dave Forgie]

Varon:  There are two ways that the Pentosin leaks around the X-plug:

1.  Bad O-rings:  Like when you cheap out and go with any old
FLAPS/HomeDepot O-ring that just happens to be the correct size.  As
they say, size doesn't count (for everything). Its whether or not the
O-ring rubber material is compatible with Pentosin (and this doesn't
necessarily mean air conditioning fluid/gas).  Find the correct O-ring.
The dealer has them. Porsche dealers have them.  They aren't that
expensive.  Certainly not as expensive as losing a liter (or more) all
over your engine bay.

2.  Corrosion.  The Pentosin "eats" the plug and probably the plug
seating surface of the pump, creating a pathway for the fluid to squeak
by.  Sometimes, a quick fix is just tightening the X-plug (squishing the
O-ring into the corroded area).(BTDT)  The better fix is a new plug and
O-ring (about $10 at the dealer).

HTH

Dave (with a spare X-plug and O-ring in the trunk) F.