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- DIY Turbo Discussion (https://www.miataturbo.net/diy-turbo-discussion-14/)

- - BOV leaking (https://www.miataturbo.net/diy-turbo-discussion-14/bov-leaking-93555/)

Boostedyada

06-10-2017 09:19 PM

BOV leaking

So my BOV for my turbo has been leaking.... for quite a while. At first, I thought it was the O ring (which actually the O ring was messed up so my initial hypothesis was correct). I replaced the O ring, but the BOV still leaks mainly at idle and deceleration. Any ideas what it might be? My BOV is a Tial Q, and I'm thinking it might be the spring but I'm not for sure. Any ideas of what it might be?(hoses and everything else is good too).

ramensoop

06-10-2017 10:30 PM

They have different springs for different idle vacuum ranges. Maybe yours is too soft?

http://www.tialsport.com/documents/w3_tial_qqr_sp.pdf

Boostedyada

06-10-2017 10:33 PM

That's what I was thinking but this BOV has been on for a while can vacuum idle in/hg change over time or does the amount usually stay the same?

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