Runs rough after changing valve cover gaskets

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Runs rough after changing valve cover gaskets

#11

10-31-2008, 07:25 PM

sbourg

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Join Date: Jul 2001

Location: SoCal

Posts: 1,303

The vent outlet from the pressure regulator - if sealed - will prevent the regulator from working properly. It mechanically compares fuel pressure to air pressure, using the vent hole. The reason for connecting to the breather tube is to prevent fire danger if the diaphragm ruptures. It must see some pressure close to 1 atm or it will not control properly.

Steve

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