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Secondary Bypass Valve Has Oil In It

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Old 12-31-2022, 03:11 PM
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Yogibara
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Default Secondary Bypass Valve Has Oil In It

Hey guys, as most of you all know I'm rebuilding my engine (which is complete, btw) and am now bolting on all the sensors and vacuum system. In cleaning this part a large amount of oil came out of it. I'm thinking this was caused by somewhere else, like the AOS. Basic blow test passes. These things aren't cheap so looking for feedback before I replace it. Obviously the AOS system is being replaced, as are most of the hoses.
Old 12-31-2022, 06:08 PM
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dporto
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Going with the UAOS? Probably a wise move…
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Old 01-01-2023, 12:16 PM
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TexSquirrel
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UAOS should prevent this since oil would end up in the accumulator and you'd receive a visual warning.
I would add the UAOS to your build if it were me.

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Old 01-03-2023, 12:52 PM
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Yogibara
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Nah, I can't spend that on the UAOS. I'm pretty good at dropping these engines now so it won't bother me too much if I have to get at it for some reason. All new o-rings, and parts should help with that. Thanks guys!

Old 01-03-2023, 01:01 PM
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zbomb
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Maybe by the time you’re ready to address the AOS the FSI version will have hit the market.

Originally Posted by BRS-LN
Couple that with several special tools and a very outside the box AOS system enhancement and 2023 will be very exciting. I have to say that the Raby approach to the AOS system is just as simple as his IMS Solution
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Old 01-03-2023, 01:04 PM
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