Hello! Log in or Register   |  Help  |  Donate  |  Buy Shirts See all banner ads | Advertise on TheSamba.com  
TheSamba.com
 
Dual Weber woes
Forum Index -> Ghia Share: Facebook Twitter
Reply to topic
Print View
Quick sort: Show newest posts on top | Show oldest posts on top View previous topic :: View next topic  
Author Message
vw_bud
Samba Member


Joined: March 23, 2008
Posts: 265
Location: Bradford, PA
vw_bud is offline 

PostPosted: Wed Oct 20, 2021 5:25 pm    Post subject: Dual Weber woes Reply with quote

Ok so I have a 72 this with an electronic fuel pump and for some reason the fuel pumps back out of the carbs after it sits the only way to start the car is with ether, and with the key on pump running there is no fuel going into the float bowls and the carbs are newer I dont think the needle valves are sticking
Back to top
View user's profile Send private message Gallery Classifieds Feedback
overboost
Samba Member


Joined: June 11, 2021
Posts: 178
Location: Huntersville, NC
overboost is offline 

PostPosted: Wed Oct 20, 2021 5:33 pm    Post subject: Re: Dual Weber woes Reply with quote

If your electric fuel pump is working correctly, it should fill the float bowls. The only thing stopping it is the float needle and seats.

It sounds like you need to check fuel pressure and take the tops off the Webers and have a look.
_________________
The older I get... The faster I was...
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
rbsurfguy
Samba Member


Joined: August 10, 2008
Posts: 1757
Location: Fairfax, Northern Virginia Formerly Huntington Beach, SoCal
rbsurfguy is offline 

PostPosted: Wed Oct 20, 2021 6:17 pm    Post subject: Re: Dual Weber woes Reply with quote

Correct me if I'm wrong, but shouldn't the fuel pressure be set between 3 & 4 psi, ideally 3.5 with dual Webers using an electric fuel pump?
Jeff
_________________
1971 Ghia convertible (Body off rebuild)
2019 VW Atlas 4Motion
2012 Passat-Sold


See my build on The Samba at:
Jeff's 71 Vert Restoration/Reassembly http://www.thesamba.com/vw/forum/viewtopic.php?t=6...highlight=


Last edited by rbsurfguy on Wed Oct 20, 2021 7:06 pm; edited 1 time in total
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
overboost
Samba Member


Joined: June 11, 2021
Posts: 178
Location: Huntersville, NC
overboost is offline 

PostPosted: Wed Oct 20, 2021 7:02 pm    Post subject: Re: Dual Weber woes Reply with quote

OP didn't specify the pump but assuming it is a Facet pump it will be perfect. He might have a feed issue to the pump or the pump has failed.
_________________
The older I get... The faster I was...
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
vw_bud
Samba Member


Joined: March 23, 2008
Posts: 265
Location: Bradford, PA
vw_bud is offline 

PostPosted: Wed Oct 20, 2021 7:28 pm    Post subject: Re: Dual Weber woes Reply with quote

Sorry to be vague on the pump I'm not sure what it is but the owner is having issues with starting it, he has to use ether everytime the car sat for 24 hrs
Back to top
View user's profile Send private message Gallery Classifieds Feedback
overboost
Samba Member


Joined: June 11, 2021
Posts: 178
Location: Huntersville, NC
overboost is offline 

PostPosted: Wed Oct 20, 2021 7:35 pm    Post subject: Re: Dual Weber woes Reply with quote

It must be leaking into the manifolds or on the ground. There is no way it can make it back into the tank, the float bowl inlets are above the fuel in the carbs.

I would suggest he lets it sit 24 hours and then pull the tops off the carbs and see if they are empty. Slim chance both carbs are leaking.
_________________
The older I get... The faster I was...
Back to top
View user's profile Send private message Send e-mail Gallery Classifieds Feedback
vw_bud
Samba Member


Joined: March 23, 2008
Posts: 265
Location: Bradford, PA
vw_bud is offline 

PostPosted: Wed Oct 20, 2021 7:47 pm    Post subject: Re: Dual Weber woes Reply with quote

That's the thing there isnt a leak and oil level is perfect and clean
Back to top
View user's profile Send private message Gallery Classifieds Feedback
Display posts from previous:   
Reply to topic    Forum Index -> Ghia All times are Mountain Standard Time/Pacific Daylight Savings Time
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

About | Help! | Advertise | Donate | Premium Membership | Privacy/Terms of Use | Contact Us | Site Map
Copyright © 1996-2023, Everett Barnes. All Rights Reserved.
Not affiliated with or sponsored by Volkswagen of America | Forum powered by phpBB
Links to eBay or other vendor sites may be affiliate links where the site receives compensation.