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08-11-2020, 05:54 PM | #23 |
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Valve cover gaskets are not the same thing as valve stem seals. Valve stem seals are ring-like gaskets that go on each valve to keep oil in the valvetrain area from getting into the combustion chamber through the gap between the valve stem and the hole for the valve stem in the head. Just want to make sure I've made the distinction clear so you don't get the wrong info and try to chase this thing down with parts. I wouldn't touch anything until the inspection. In order to visually inspect the valve stem seals the tech must remove the valve covers anyways so it won't be a loss as the valve cover gaskets should be replaced at that time.
https://www.turnermotorsport.com/BMW...mw-valve-seals |
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08-11-2020, 06:12 PM | #24 | |
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Quote:
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08-11-2020, 10:59 PM | #25 |
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If you’re replacing the valve stem seals, might as well replace the valve springs with updated ones since they gotta come out.
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08-12-2020, 10:19 AM | #26 |
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Exactly, if this does turn out to be the problem then Ill end up refreshing it all up anyway while Im down there. I plan on maybe 2-3 track days this year so proper maintenance is required. I plan on owning the car for years. And those pesky valve springs scare me.. buddy broke his and $8k later it was fixed.
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08-14-2020, 10:19 AM | #28 |
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Diagnosis came back and it looks to be my PCV valves on bank #1 and #2 are pulling in more oil on deceleration only when the car is warmed up as well. We got it hooked up to a special meter and found they're randomly spiking pulling more oil in. Replacing both bank 1 2 and this should be the fix, got lucky easy job.
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