mickeykreg
Need a Spot
Reged: 11/30/07
Posts: 24
Loc: ogden, utah
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Re: floatbowl bleeds off overnight; mystery remains
03/16/08 12:11 PM
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Though i'd post an update.
I got a new carb from Carb Exchange and it bleeds off too. I sent it back and Paul set it up on his test engine with no bleed off. He was nice enough to give me my money back. Paul seemed to think its a bad diaphram in the mech. fuel pump which causes enough vaccum to pull the fuel out the return line.
I've run the engine long enough to not let it get warmed up then shut it off and pulled off all the vaccum lines, PCV line, and fuel line from the fuel pump, with the same results. Next I removed the carb from the manifold after shutting off the engine, being careful not to actuate the throttle linkage, or tip it over, and set it on a bench. Still drained off but I couldn't see where it drained nor could i see any residue on the bench of where it'd drained and evaporated.
Oil doesn't smell of fuel, and there isn't a puddle of fuel in the manifold, under the carb, after it drains off. It takes about 8 hours to drain off.
This is too weird, any ideas would be welcome.
I'd be interested in hearing from Stock87 to see what ever became of your similiar problem.
--------------------
Mick
84 Xtra-cab -sold
85 4Runner
http://www.flickr.com/photos/mickeykreg/
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