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Old 03-27-2003, 01:29 PM   #1
bpmcgee
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Diagram needed!

Hi,

I just bought a really cool poly tank for my 71 blazer from GMCPauls.

When I opened the box, I was amazed to see 4 pipes from it. I figured 3 -- engine feed, fuel fill, and fill vent. Does anyone have a diagram that they could post showing how this should all be layed out?

Let's just say the existing setup is ... well, jury-rigged is the most polite way of putting it.

Thanks for your help,

Brian
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Old 03-27-2003, 02:01 PM   #2
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If you got it from GMC Pauls, contact him.

He is very helpful, surprised there was nothing in the box.............
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Old 03-27-2003, 02:13 PM   #3
cdowns
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I think the 4th one is for that cannister thing
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Old 03-29-2003, 02:57 AM   #4
LudwigTheMad
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Depending on tank/fuel pump.....

Fill
Fill Vent
Fuel pump Feed
Fuel pump return (if your fuel pump uses one)

#4 can be used as a second vent.....

My old one had 6.....it was a 50 gal. tank

Fill
2 fill vents (due to size)
no feed, as mine was built into sending unit
Retun
and a go between cell one and cell two (it was u shapped to go around a frame rail......yes it was all one big tank, but you couldn't fill the top 1/4 of the tank without the gobetween...expessially if you were on a slight incline....
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Old 03-29-2003, 06:26 AM   #5
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Thumbs up

4th is for the carbon cannister vent line used on EEC (Evaporative Emmisions Control )equipped trucks. For faster fill ups and proper venting use them all, if you do not have any EEC components use all as vents even if you tie all into the same place for venting.
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