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what are these tank fitting?? want to add return line!

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Old 04-19-2013, 10:26 AM
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Default what are these tank fitting?? want to add return line!

Bringing my new to me boat home this weekend (33OL!!)

I have 454 mags mpis and will need to address cool fuel/vapor lock issues and I WILL have... I put the $300 pump on my last 454 mag mpi but don't want to spend that when I can possibly add a return line (per Mr Eddie Young who graciously explained how to add bung with bulkhead plate/fitting or splice into fuel fill)!!

what are these lines..

Assume the 1 pic (2 lines, 1 big 1 small) thought it was pickup and vent, then found pic of another??
pic 2 is 2 small lines and open bung(??) and sending unit

Can i use the open bung for my 2 return lines??

thanks guys! excited.. I leave in just over an hour to drive 1000 miles to VA to get my boat!
Attached Thumbnails what are these tank fitting?? want to add return line!-fittings-2.jpg   what are these tank fitting?? want to add return line!-fittings-1.jpg  
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Old 04-19-2013, 10:47 AM
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I would not dump the fuel back in right by the pick up... Could have a aeration issue
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Old 04-19-2013, 10:52 AM
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Originally Posted by jwp
I would not dump the fuel back in right by the pick up... Could have a aeration issue
the pickups are drawing from the bottom via pickup line and the other bung would be spraying on top?? correct, so should not have issue correct??? The bung should not or could remove any extended pickup??

thanks
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Old 04-19-2013, 10:59 AM
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I have the same set up, first pic is fill & vent, second pic is fuel pickups and one empty bung, you dont have much option if you dont want to weld in another fitting, maybe Eddie could answer your Q

I think you would be fine hooking to the empty fitting

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Old 04-19-2013, 11:09 AM
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Originally Posted by 33outlawsst
I have the same set up, first pic is fill & vent, second pic is fuel pickups and one empty bung, you dont have much option if you dont want to weld in another fitting, maybe Eddie could answer your Q

Thanks.... I just got off the phone with him.. I figured.. crap.. I don't want any issues so I went ahead and called him.

Eddie said to run both returns there and I would be good!!! also mentioned even if it had a long pickup on that bung, it would be fine!!! hated to call him again, but once I found this pic... had to figure it out

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Old 04-19-2013, 11:20 AM
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good luck and congrats on the new 33, I've had mine for 2 years, putting two new 540's in about 3 weeks
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Old 04-19-2013, 11:22 AM
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Originally Posted by 33outlawsst
good luck and congrats on the new 33, I've had mine for 2 years, putting two new 540's in about 3 weeks
Thanks.. I will post pics in "baja" when I have back at house in possesion!!
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Old 04-19-2013, 11:29 AM
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I think the reason for three fittings is that back in the day Baja had a trip engine model and this tank was used for both applications, but dunno for sure
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Old 04-19-2013, 11:30 AM
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Originally Posted by 33outlawsst
I think the reason for three fittings is that back in the day Baja had a trip engine model and this tank was used for both applications, but dunno for sure
yep... I what I was thinking too..
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Old 04-19-2013, 07:47 PM
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That big hose is your fill , and little is vent in the one pic. Other pic is feeds. I have my return in the same spot(near pick up) and its fine.
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