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Guest Message by DevFuse

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ea81 brat fuel tank question

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2 replies to this topic

#1 86subaru


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Posted 10 March 2009 - 06:52 PM

afriend of mine with a 84 brat a/t ,ea81 motor , carb, he bought a different gas tank [ used], but good shape, his problem is it is vapor locking ,,new fuel filters, different canister , ,he can only drive it with the gas cap real loose, , if the cap is tight the truck will hardly start, he switched the lines still the same thing, any help ??

#2 naru


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Posted 10 March 2009 - 07:26 PM

Vent line from tank to cannister must be plugged or 2 way valve is stuck.

Should be able to blow easily thru the line from the cannister to the tank w/fuel cap loose.

Proper cap should have a vacuum relief valve to prevent this.

#3 86subaru


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Posted 10 March 2009 - 09:26 PM

also new fuel cap, ok, thanks

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