|
Registered
Join Date: Nov 2001
Location: Weatherford Tx. USA
Posts: 98
|
Sodium
On the sodium issue. I believe TRW made both sodium and non-sodium filled valves. And they are an OEM supplier of (some) valves. What I saw in some advertising was a play on words. They are an OEM supplier but maybe not for your particular application.
TRW had some problem valves where the surface finish on the stems was too rough and the valve guides wore out prematurely.
Supposedly TRW is packing it up due to the EPA and smelting issues???
I've found sodium filled valves in two 2.7 engines. I haven't checked any 3.0 or 3.2 valves yet.
Scott
__________________
75 911S Coupe 3.4 Twin Plug - ITB - MegaSquirt
84 Carrera Coupe M491
|