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Walbro fuel pumps hold pressure/check valve?

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Old 02-23-03, 08:06 PM
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Walbro fuel pumps hold pressure/check valve?

anyone know if the Walbro fuel pumps hold pressure after being primed?
do the Walbro pumps have a internal check valve?

Steve
Old 02-23-03, 10:55 PM
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Yes they have a check valve, mine does bleed off after awhile But I am not sure if its the check valve leaking back or the malpassi regulator that has a bleed in it..
Old 02-25-03, 01:58 AM
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My cosmo fuel pump doesnt hold pressure, is this normal? Should I run a check valve to keep the lines primed?
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