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BOV maintenance

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Old Jan 26, 2021 | 07:22 PM
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Default BOV maintenance

Had my 97 A&A corvette dynoed after 7 years. Was down about 100hp, found out my bov was stuck open just enough to make it sound like everything was OK. I guess I will be doing some regular maintance on the bov from now on
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Old Jan 27, 2021 | 01:31 PM
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Good reminder! It’s a set n forget it piece, but does require occasional maintenance - especially if running with no filter setup.
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Old Jan 27, 2021 | 03:53 PM
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Good catch! Luckily it's super easy to work on, just make sure you don't use anything heavier than WD40.
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Old Jan 27, 2021 | 07:39 PM
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I used 3 in 1 oil.
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Old Jan 27, 2021 | 09:01 PM
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This is why I recommend a pressure test as part of routine maintenance for forced induction vehicles.

I apply 25psi of pressure to the inlet of my turbocharger and fill all the plumbing and intake manifold to find every leak.

If you've never done this, you are going to find many leaks. Then after that, a few months later, you'll fine a split hose, a leaking pcv valve, a torn coupler, all kinds of stuff can happen over time.
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Old Jan 28, 2021 | 11:56 PM
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Are you taking apart the bov? Any instructions on how to do the maintenance? Did you see boost loss in your gauge?
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Old Jan 29, 2021 | 07:53 AM
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Originally Posted by slow_vettec6
Are you taking apart the bov? Any instructions on how to do the maintenance? Did you see boost loss in your gauge?
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Old Jan 29, 2021 | 12:20 PM
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Default BOV Maintenance

Originally Posted by slow_vettec6
Are you taking apart the bov? Any instructions on how to do the maintenance? Did you see boost loss in your gauge?
Removed BOV, unscrew plastic cap, clean bore and piston and coat with light oil,or WD40. I don't have a boost gage, just seemed that I had lost hp, and dyno confirmed it. In my case the piston was stuck with about a 1/16 gap which was allowing some boost to escape, when I would let off it sounded like it was releasing boost like everything was working
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