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Forum namePerformance/Engine
Topic subjectDo I really need to change valve seal ?
Topic URLhttps://forums.2gnt.com/dcboard.php?az=show_topic&forum=i5&topic_id=104489
104489, Do I really need to change valve seal ?
Posted by ChloRure, May-30-07 07:18 PM
Ive just complete the rebuilt of my block and now Im in the head... the reason for the rebuilt its just to take 10psi-15psi of boost someday. Now im at 8psi. Motor was fine before its just to be safe. The problem is that im low on money now and I have the top end gasket that come with new valve seal... head has 90 000miles. I was wondering if I really need to change the seals ? cause if I need ill buy some crane valve spring at the same time but its another 100$

Or if I really dont need better spring for 15psi of boost I can use stroker ?
104490, RE: Do I really need to change valve seal ?
Posted by Slimyjr., May-30-07 09:50 PM
I would just to be safe. Not sure if you def. have to though. i think i read somewhere that you have to get a new one if you rebuild for it to seal right but don't qoute me on that.
104491, RE: Do I really need to change valve seal ?
Posted by bullettdsm, May-31-07 12:35 AM
Yes
104492, RE: Do I really need to change valve seal ?
Posted by DR1665, May-31-07 03:05 AM
Unless you think it's cool to belch smoke after two minutes idling in the drive thru some day...
104494, RE: Do I really need to change valve seal ?
Posted by eclipsekaiser, May-31-07 05:29 AM
Mine pops and snorts like a group 5 car, not to mention the trace smell of oil after a high rev. This is on a 170K Neon.
104501, RE: Do I really need to change valve seal ?
Posted by DR1665, May-31-07 02:05 PM
Originally posted by eclipsekaiser
Mine pops and snorts like a group 5 car, not to mention the trace smell of oil after a high rev.


AWESOME.
104496, RE: Do I really need to change valve seal ?
Posted by cc8balla, May-31-07 05:41 AM
Originally posted by DR1665
Unless you think it's cool to belch smoke after two minutes idling in the drive thru some day...


Haha exactly.

Change them.
104500, RE: Do I really need to change valve seal ?
Posted by ChloRure, May-31-07 01:40 PM
Right, and for the springs ? I read that stock one push around 40lbs to close the valve so with 15lbs boost ... 25lbs left to close them . Im auto so rev limit is around 6500rpm.