Valve on top fmu

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03-26-2005, 07:34 AM

kazenokoe

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Valve on top fmu

I have a procharger fmu that has a valve that is on top where the vac line goes. It screws in and out. Does anyone know what it is for?

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03-26-2005, 07:35 AM

kazenokoe

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Re: Valve on top fmu (kazenokoe)

My best guess it to increase or decrease vac presurre for fuel

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03-26-2005, 08:15 AM

Evanmb44

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it needs to be connected to a vacuum source

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03-26-2005, 08:34 AM

kazenokoe

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Re: (Evanmb44)

it is, but i just wanted to know what the screw behind the vac line on top the fmu was for.

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03-26-2005, 09:27 AM

SOHCmaster

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for adjustment.. kinda like a manual boost controller, but you adjust the vac signal for 10:1-12:1 or whare ever you need to be at for you

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