The pressure regulator is also the relief. In order for the pump to have a relief it would need another hose for the relieved fuel to go back to the tank. Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Sam Payne Sent: Friday, July 20, 2007 4:17 PM To: vanagon@GERRY.VANAGON.COM Subject: fuel pump relief valve? Does anyone out there know if an '86 vanagon fuel pump has a built-in pressure relief valve? If it does, what should maximum pressure be before the valve opens? I found no mention of this in Bentley. I pinched shut my fuel return line expecting to see pressure relieved at about 80 lbs. but it climbed to 100 before I released the hose, worried about popping a line off or damaging the system. Seems to me there must be a relief valve since it's common in other FI systems. Thanks for your help, Sam |
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