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> OE Exhaust Valves, Sodium
914werke
post Apr 1 2006, 10:04 PM
Post #61


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I know Jake suggests tossing these, but unfortunantly Im rebuilding a set of heads. Id like to keep them stock, but Im more concerned about longevity.
Is there anything that can be done to improve thier function?

Cryo? (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif)
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r_towle
post Apr 2 2006, 12:20 PM
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QUOTE (rdauenhauer @ Apr 1 2006, 11:04 PM)
I know Jake suggests tossing these, but unfortunantly Im rebuilding a set of heads. Id like to keep them stock, but Im more concerned about longevity.
Is there anything that can be done to improve thier function?

Cryo? (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif)

I believe STOCK is the operative word here.

Again,,,designed to provide longevity..not turn at 8500 rpms...

As far as owned goes...well whatever...I personally like the free flow of information that people have on these types of forums...I think everyone here has lost some balls...no one speaks up anymore for fear of getting bullied...

I dont like bullies,

Rich
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rdauenhauer   OE Exhaust Valves   Apr 1 2006, 10:04 PM
r_towle   Im gonna ask a rhetorical question... Did the ori...   Apr 1 2006, 10:10 PM
rdauenhauer   Actually yes! and that IS the hope. <...   Apr 1 2006, 11:56 PM
Brando   <...   Apr 2 2006, 12:16 AM
messix   the valve stems are filled with sodium to isolate ...   Apr 2 2006, 12:20 AM
DNHunt     Apr 2 2006, 06:49 AM
davep   <...   Apr 2 2006, 06:59 AM
Bleyseng   I don't use 30yr old valves in my cars....if y...   Apr 2 2006, 08:29 AM
J P Stein     Apr 2 2006, 08:48 AM
r_towle   Here is my logic. The car/engine was designed for...   Apr 2 2006, 09:10 AM
Rotten Robby   ...and for a fun experiment you can do at home...   Apr 2 2006, 10:54 AM
r_towle   what happens when you pour it down the sink?? smok...   Apr 2 2006, 10:57 AM
bd1308     Apr 2 2006, 11:10 AM
J P Stein     Apr 2 2006, 11:10 AM
Rotten Robby     Apr 2 2006, 11:13 AM
Jake Raby   I can't stand not posting on this topic. If ...   Apr 2 2006, 11:59 AM
Aaron Cox   http://www.914world.com/bbs2/h...   Apr 2 2006, 12:05 PM
  Apr 3 2006, 09:11 AM
Bleyseng   My rebuilt rebuilt motor with the new cam is runni...   Apr 3 2006, 10:19 AM
Demick   Just a few observations: 1. I have noticed that J...   Apr 3 2006, 10:30 AM
DNHunt   I agree that the longer duration probably acounts ...   Apr 3 2006, 10:52 AM
Demick   Dave Very generally, steel has 2-3 times the ther...   Apr 3 2006, 11:07 AM
Bleyseng     Apr 3 2006, 11:10 AM
J P Stein   The sodium transfers heat from the head to the ste...   Apr 3 2006, 12:43 PM
Bleyseng   and if the valve guide is worn the valve does not ...   Apr 3 2006, 12:57 PM
alpha434   <...   Apr 3 2006, 01:39 PM
SLITS   <...   Apr 3 2006, 02:01 PM
davep   <...   Apr 3 2006, 02:06 PM
Matt Meyer  
  Apr 3 2006, 02:22 PM
Bleyseng   Good food for thought on how fixing one problem le...   Apr 3 2006, 02:46 PM
Twystd1   Somebody explain to me how an Airplane piston engi...   Apr 3 2006, 02:58 PM
arc914  
  Apr 3 2006, 04:06 PM
Bleyseng   I am not sure that type 4 engines need a spray bar...   Apr 3 2006, 05:29 PM
Twystd1   Many spec racing (NASCAR and others) V8 engines us...   Apr 3 2006, 06:03 PM
J P Stein   Golly.........what Porsche engine has had 2 cam to...   Apr 3 2006, 07:33 PM
Bleyseng   Aren't 911 engines dry sumped? <...   Apr 3 2006, 08:07 PM
TimT  
  Apr 3 2006, 08:22 PM
DNHunt   Damn that was good http://w...   Apr 3 2006, 08:34 PM
J P Stein   30's technology? I'm 40's technology.....   Apr 3 2006, 09:38 PM
sixnotfour   935 oil cooled/lubed guide exhaust,oil cooled/lube...   Apr 3 2006, 11:03 PM
sixnotfour   sideshot   Apr 3 2006, 11:07 PM
Mueller  

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