Valve seals?
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Pro
Joined: Apr 2007
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From: Mc Farland Wisconsin
Valve seals?
I ordered some valve seals from RockAuto and when they arrived I noticed they are all brown, whereas ive read that the OE's are brown for exhaust for higher temp resistance im assuming and black for intake. Is it ok that these are all brown? Anybody had problems with a/m valve seals?
Le Mans Master
Joined: May 2007
Posts: 5,393
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From: Belleville Mich.
I ordered some valve seals from RockAuto and when they arrived I noticed they are all brown, whereas ive read that the OE's are brown for exhaust for higher temp resistance im assuming and black for intake. Is it ok that these are all brown? Anybody had problems with a/m valve seals?
GM valve seals have different colors for the intake & exhaust.
Exhaust is brown.
Intake are black & should be slightly more pliable than the brown ones.
I believe Rock Auto gave you all exhaust seals & I wouldn't install them
on the intake side, untill certain.
Good luck.
Safety Car
Joined: Jul 2004
Posts: 3,904
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From: Vancouver Washington
I ordered some valve seals from RockAuto and when they arrived I noticed they are all brown, whereas ive read that the OE's are brown for exhaust for higher temp resistance im assuming and black for intake. Is it ok that these are all brown? Anybody had problems with a/m valve seals?
Advanced
Joined: Nov 2010
Posts: 64
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From: Waipahu Hawaii
If you need seals, let me know, I have both intake and exhaust new in the GM OEM package for sale: Part numbers: 12457652 and 12533586.
$30-shipped, PayPal preferred, USPS to all 50 states (cheaper if in Hawaii - haha).
$30-shipped, PayPal preferred, USPS to all 50 states (cheaper if in Hawaii - haha).
Thread Starter
Pro
Joined: Apr 2007
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From: Mc Farland Wisconsin
Safety Car
Joined: Jul 2004
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From: Vancouver Washington
Thread Starter
Pro
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From: Mc Farland Wisconsin
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Safety Car
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From: Portland OR
I don't know if the AFR heads use the same seal. .5" ID x 8mm?
Anyway, the ones I replaced were all brown and the ones I bought were blue viton.
Good for 10hp I hear! I read that on the internet so it has to be true!
I doubt Viton necessarily needs to be blue. I would think they can dye it any color they want. Just stay away from Teflon.
Ron
Anyway, the ones I replaced were all brown and the ones I bought were blue viton.
Good for 10hp I hear! I read that on the internet so it has to be true!
I doubt Viton necessarily needs to be blue. I would think they can dye it any color they want. Just stay away from Teflon.
Ron
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Pro
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From: Mc Farland Wisconsin
Ok, question for you guys regarding the Viton seals. I changed 4 springs this morning, and I guess I did not notice until the 3rd spring that the valve seals were not tight. What I mean by this is they can be easily pulled back off without any force and I am afraid that with valve operation they will continually slide up the valve stem. I have tried to use a 12 or 13mm socket, i cant remember which, to push the seal on. No matter how hard I push it does not matter. I even tried to tap with a hammer and that did nothing as well.
I am considering putting my OE 140k mile seals back in as I have intentions of swapping on some 243's next winter.
Ideas?
UPDATE: I think something is up with either the Viton seals or my 853 heads. After further looking at the seals and taking another cylinder apart, it is found I have some wrong seals. I only have 8 seals that work, and they replicate the look of the exhaust seal. The other seal that has a full length rubber inside has a much bigger inner diamater of almost .5mm by my micrometer. So basically I only had enough seals that fit nice to do one head.
I am considering putting my OE 140k mile seals back in as I have intentions of swapping on some 243's next winter.
Ideas?
UPDATE: I think something is up with either the Viton seals or my 853 heads. After further looking at the seals and taking another cylinder apart, it is found I have some wrong seals. I only have 8 seals that work, and they replicate the look of the exhaust seal. The other seal that has a full length rubber inside has a much bigger inner diamater of almost .5mm by my micrometer. So basically I only had enough seals that fit nice to do one head.
Last edited by Nver2loud; Mar 18, 2012 at 04:35 PM. Reason: Update
