HOME FORUM RULES CONTACT
     
   
   

Go Back   CLASS RACER FORUM > Class Racer Forums > Stock and Super Stock Tech


Reply
 
Thread Tools Display Modes
Old 02-21-2019, 05:21 PM   #1
Mike Meier
Member
 
Join Date: Dec 2001
Location: Webster, TX
Posts: 317
Likes: 103
Liked 40 Times in 8 Posts
Default Fuel sample valve - need help

Running into a big hold up on the smallest of things. The fuel sample valve.

I purchased the Jegs fuel sample valve with the 1/8th NPT thread and can't figure out a safe way to have it installed. The shop doing the work on all the other stuff didn't want to do that aspect due to fuel injection being higher pressure.

This is for my DF/S 2007 Chevy Cobalt with the 2.2 liter Ecotec for any readers who didn't know that from the Classracer Builds section. It is a rubber fuel line from the firewall to the fuel rail and at the fuel rail end it is permanently attached (meaning I can't just unscrew it).

How do we go about getting this done? Is there anyone in the Houston area that can assist?
__________________
Mike Meier
"World's most expensive DF/S" 2007 Chevy Cobalt....because suffering through owning an AMC Stocker wasn't enough
Mike Meier is offline   Reply With Quote
Old 02-21-2019, 05:45 PM   #2
ss3011
Senior Member
 
ss3011's Avatar
 
Join Date: Feb 2002
Location: Southeast Michigan
Posts: 885
Likes: 62
Liked 221 Times in 102 Posts
Default Re: Fuel sample valve - need help

Is this the type of fuel system that doesn't have a fuel return up in the engine compartment ? I think the factory had the return and possibly the regulator back by the fuel tank . You may want to re-engineer that so it is similar to the old LT1 , which regulated fuel pressure on the return side of the fuel rail . Once you do that , the fuel sample valve will be easy to plumb in . That will then be similar to how I plumbed up my Oldsmobile Quad 4 .
ss3011 is offline   Reply With Quote
Old 02-21-2019, 08:18 PM   #3
Ed Wright
Veteran Member
 
Ed Wright's Avatar
 
Join Date: Mar 2005
Location: Sand Springs, OK
Posts: 8,132
Likes: 896
Liked 389 Times in 168 Posts
Default Re: Fuel sample valve - need help

I have my fuel sample valve tapped into the fuel return line on my LT1. I also have a button near it, to push to run the pump for filling the fuel sample cup. Just a universal starter button. Both under the hood. Quick, simple fuel sample.
__________________
Ed Wright 4156 SS/JA
Ed Wright is offline   Reply With Quote
Old 02-21-2019, 11:29 PM   #4
Mark Yacavone
Veteran Member
 
Mark Yacavone's Avatar
 
Join Date: Mar 2002
Location: Miles From Nowhere
Posts: 7,392
Likes: 2,563
Liked 4,416 Times in 1,683 Posts
Default Re: Fuel sample valve - need help

Mike, You should have a pressure test port there somewhere.
This is how I did it on the Monte. I removed the Schrader valve and adapted an AN type fitting that changed everything over to 1/8th pipe. Then the sample valve on a tee and then onto a braided hose to the cowl mounted pressure guage, which you're going to need anyway. Yes, also an under the hood mounted fuel pressure relay feed switch.

picture share

__________________
We are lucky we don't get as much Government as we pay for..... Will Rogers

Last edited by Mark Yacavone; 02-21-2019 at 11:35 PM.
Mark Yacavone is offline   Reply With Quote
Old 02-22-2019, 03:58 PM   #5
Mike Meier
Member
 
Join Date: Dec 2001
Location: Webster, TX
Posts: 317
Likes: 103
Liked 40 Times in 8 Posts
Default Re: Fuel sample valve - need help

Thanks all for the replies.

We wound up doing what Mark suggested.

And now I know for the next one. LOL
__________________
Mike Meier
"World's most expensive DF/S" 2007 Chevy Cobalt....because suffering through owning an AMC Stocker wasn't enough
Mike Meier is offline   Reply With Quote
Old 02-24-2019, 09:47 AM   #6
Larry Hill
Live Reporter
 
Join Date: Oct 2004
Location: Hickory, Ky
Posts: 10,262
Likes: 1,620
Liked 9,397 Times in 1,944 Posts
Default Re: Fuel sample valve - need help

I use a stainless ball valve off of the regulator. I have used same ball valve since the 1990's
__________________
IHM Used Parts
https://ihmusedparts.com
888-821-1817
Larry Hill is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 03:38 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright © Class Racer.com. All Rights Reserved. Designated trademarks and brands are the property of their respective owners.