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Cylinder head valves

Asked Sep 16, 2010, 10:05 AM — 4 Answers
What white pasty material would be found inside a cylinder head valve.

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smoothy's Avatar
smoothy Posts: 15,494, Reputation: 10703
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#2

Sep 16, 2010, 10:15 AM
Sodium?
oliver321 (Sep 18, 2010 05:17 AM):   Source:
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oliver321 Posts: 2, Reputation: 10
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#3

Sep 18, 2010, 05:17 AM
Comment on smoothy's post
Quote:
Originally Posted by smoothy View Post
Sodium?
i forgot to mention that this white pasty substance explodes when it comes in contact with H20
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bendingleconte Posts: 112, Reputation: 60
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#4

Sep 18, 2010, 07:16 AM
Quote:
Originally Posted by oliver321 View Post
what white pasty material would be found inside a cylinder head valve.
It is most likely just white grease used as a sealant. Double check with your airport mechanic.
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smoothy's Avatar
smoothy Posts: 15,494, Reputation: 10703
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#5

Sep 20, 2010, 05:43 AM
oliver321 : I forgot to mention that this white pasty substance explodes when it comes in contact with H20


Definately Sodium filled valves then. Probibly exhaust valves, right.

Used to promote cooling of the valves in instances where EGT's can get high, I.E. In the automotive world, with high performance or turbocharged engines, In aircraft as a safety measure.
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