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01-23-2017, 02:01 PM
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#1 |
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Registered User
Join Date: Jan 2013
Location: Oak Harbor, WA
Posts: 63
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Gas Tank Venting
I am running a 87 K5 Blazer tank with an EP385 in take fuel pump. EGR is deleted. So should the vent line for the tank be open or closed? I would think that if it were closed the tank would end up working harder and harder as the vacuum forms in the tank, leading to the truck running like crap and eventual pump death... What is the right way to do this?
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"Live, Love, Build cool s***" Jesse Chapman, 2013  My Truck.. http://67-72chevytrucks.com/vboard/s...d.php?t=567219 |
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01-23-2017, 03:06 PM
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#2 |
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Post Whore
  
Join Date: May 2015
Location: Alabama
Posts: 14,671
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Re: Gas Tank Venting
Vent the tank..no reason not to
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01-24-2017, 09:46 PM
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#3 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: Gas Tank Venting
Either vent the tank, or run a fully vented cap. Some of the vented caps aren't rollover safe, if it matters to ya.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING  |
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01-27-2017, 02:26 PM
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#4 |
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Registered User
Join Date: Jan 2013
Location: Oak Harbor, WA
Posts: 63
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Re: Gas Tank Venting
Thanks guys. I plan to use a vented cap as soon as I have it fully mounted. I appreciate the response to what is probably a dumb question.
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"Live, Love, Build cool s***" Jesse Chapman, 2013 My Truck.. http://67-72chevytrucks.com/vboard/s...d.php?t=567219 |
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01-28-2017, 06:00 PM
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#5 |
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Registered User
Join Date: Nov 2000
Location: Huntsville Ontario Canada
Posts: 4,051
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Re: Gas Tank Venting
I would reccomemd using the factory charcoal canister as the vent.
My 68 suburban has a vented cap and the Gasoline odour is very strong near the gas when driving stop and.go in town
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1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD |
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01-28-2017, 07:33 PM
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#6 |
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meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: Gas Tank Venting
LMAO such a Canadian, actually considering the people around ya lol.
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'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING |
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