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Exhaust Valve question.

Old Sep 27, 2008 | 02:57 PM
  #11  
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smart choice. Have you checked all the intakes for damage?
 
Old Sep 27, 2008 | 03:03 PM
  #12  
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Cincy, kinda off topic but not really...you know my setup, 50trim AEB w/m APR big port yada yada yada. Anyway, I wasn't planning on doing anything to the AEB head I bought at this point, think thats safe?

Edit: will be between 25-28 psi
 
Old Sep 27, 2008 | 03:20 PM
  #13  
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The only thing you may want to do is swap out to those supertech or fierra exhaust valves so you dont give the stock exhaust valves the chance to give out and destroy the head. This seems to happen over time with cars around the 400whp mark.
 
Old Sep 27, 2008 | 03:31 PM
  #14  
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Cool thanks
 
Old Sep 27, 2008 | 04:05 PM
  #15  
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Yah I sent the head in to have it checked. And I was told that all the Exhaust valves are damaged along with 2 intake valves. Right now I am just waiting for them to tell me the cost of parts. I think the place that worked on the head may decide and tell me to replace them with sodium filled. They are telling me on Monday they will contact distributor and give me a better price than what ECS and Inter (a local company that sells parts for euro cars).

Even though it is not a stock valve I am replacing it with. But when I hear sodium I think stock. Don't want to put something in there that will easily break like the OEM ones did.

I am guessing that the total cost to replace the valves + labor will be around $500. Just depends on the valves. Either way the car won't be up n running til Tuesday at the earliest (assuming I go with QED's parts).

Off topic: Can I remove the front head light housing using a heat gun? Or should I bake them like everyone else?
 
Old Sep 27, 2008 | 04:08 PM
  #16  
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Don't want to put something in there that will easily break like the OEM ones did.
Better get some pistonproof valves huh? :P

Off topic: Can I remove the front head light housing using a heat gun? Or should I bake them like everyone else?
Both work fine.
 
Old Sep 27, 2008 | 08:45 PM
  #17  
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no kidding. You cant stop a long thin valve from not bending when a piston is slamming into it. Something has got to give and a new set of pistons are $500+
 
Old Sep 27, 2008 | 09:01 PM
  #18  
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when doing valves is it best to do both the intake and the exhaust valves or is one more prone to failure vs. the other?
 
Old Sep 27, 2008 | 09:43 PM
  #19  
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Well exhaust valves are exposed to more heat hence why they're sodium filled (to dissipate heat up into the head away from the valves).
 
Old Sep 27, 2008 | 09:52 PM
  #20  
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all you need is a new set of iconel exhaust valves.
 

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