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Valve seals or turbo seals? White smoke & oil burn smell

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Old May 22, 2017, 05:04 PM
  #46  
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The ONLY thing that makes stem seals go bad is severe overheating.
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Old May 22, 2017, 06:09 PM
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Originally Posted by RightSaid fred
The ONLY thing that makes stem seals go bad is severe overheating.
Lmao, you're such a hack
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Old May 22, 2017, 07:45 PM
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Originally Posted by kaj
Unless damaged, ours last foreeeeever. Bronze, not so much.
Cool, I appreciate the info.
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Old Jun 2, 2017, 11:50 AM
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Update





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Old Jun 2, 2017, 11:58 AM
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Must've been floating valves with the 272's and stock springs. Lucky you didn't have a more major issue.
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Old Jun 2, 2017, 12:27 PM
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Eek. Pretty much what I figured. Always awesome to find the problem and greet it fixed.
SCORE!
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Old Jun 2, 2017, 06:34 PM
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Yes I'm happy & lucky it didn't cause anything worse!
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Old Jun 2, 2017, 06:46 PM
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Equally as important: do you know what caused it so it doesn't happen again?
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Old Jun 2, 2017, 07:14 PM
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Originally Posted by kaj
Equally as important: do you know what caused it so it doesn't happen again?
I'm thinking the fact I was revving to 8k with aftermarket cams and stock springs/retainers maybe wasn't the smartest.
Last edited by Bmurray; Jun 3, 2017 at 04:11 PM.
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Old Jun 3, 2017, 01:01 PM
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Originally Posted by Bmurray
I'm thinking the fact I wasn't revving to 8k with aftermarket cams and stock springs/retainers maybe wasn't the smartest.
That could be bad with a big enough cam.

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Old Jun 3, 2017, 02:00 PM
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Originally Posted by Bmurray
I'm thinking the fact I wasn't revving to 8k with aftermarket cams and stock springs/retainers maybe wasn't the smartest.
Did you mean WAS revving?
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Old Jun 3, 2017, 04:11 PM
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Originally Posted by 4G63_EVO
Did you mean WAS revving?
Yes... typo
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Old Jun 3, 2017, 08:01 PM
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Used stock valvesprings will start to float on even mild HKS 272's if you push the rev limiter to 8k, and the springs have higher miles on them (like 70-80k).

Best to do upgraded valvesprings with any camshaft install.
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Old Jun 3, 2017, 08:37 PM
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Originally Posted by letsgetthisdone
Used stock valvesprings will start to float on even mild HKS 272's if you push the rev limiter to 8k, and the springs have higher miles on them (like 70-80k).

Best to do upgraded valvesprings with any camshaft install.
The previous owner (original owner) did the 272s. For whatever reason, didn't do springs / retainers while head was off.. oh well.

Nonetheless, lesson learned. And I'm glad it's getting fixed. I'll post a vid of the car for you guys on Wednesday. He's gonna retune the car for me.
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Old Jun 3, 2017, 08:57 PM
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Most people used to skip the springs for HKS 272s. But, that was back when these cars had less mileage. Nowadays, I think it's a good idea. Even on a low-mileage car, I would.
That's probably why they didn't do it, though.
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