07-12-2009, 02:36 PM
Without EFI you shouldn't have a return line to the tank. It should be a draw only system. There were vent lines running to the charcoal canister behind the passenger front wheel. A round can about 8" tall and another behind the driver's seat in the side of the truck just behind the striker post. Those should vent any pressure that would build up in the tank. Are your vent lines crushed or capped off for some reason? PO? Filler should have 2 small lines coming out of it, on the tank itself. One to the carb and one to vent. I dumped fuel because of the bad cap seal but hopefully no more. New caps like yourself.
Tim
Tim
74 Bronco Ranger halfcab w/toys: lockers f&r, wristed arm, C4, D20, hyd assist steering, 37"MTRs, warm 302. Capability, that's what I'm talkin' bout.