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RexMax
Samba Member
Joined: July 21, 2022
Posts: 99
Location: S.F Bay area
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 Posted: Tue Sep 27, 2022 1:42 pm Post subject: fuel pump lines on 74 SB |
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| Why is this so hard to find? Which port is the suction from the tank? The one on the bottom, or the one one the top? Yes I know I should have taken a picture, but I didn't. The expensive manual only shows pump lines on cars with generators (old style). Looked on the tube and all I can find are how to replace the pump, but leave out how to put the lines on. Anybody here got a picture? Thanks. |
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busdaddy
Samba Member
Joined: February 12, 2004
Posts: 51128
Location: Surrey B.C. Canada, but thinking of Ukraine
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| Posted: Tue Sep 27, 2022 4:11 pm Post subject: Re: fuel pump lines on 74 SB |
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Top is usually the inlet, but there's so many aftermarket pumps with their own oddball styles it's hard to say without a pic.
You have a 50/50 chance, if it's not making fuel connected one way try the other.
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kreemoweet
Samba Member
Joined: March 13, 2008
Posts: 3898
Location: Seattle, WA
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| Posted: Tue Sep 27, 2022 5:40 pm Post subject: Re: fuel pump lines on 74 SB |
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Unless your aftermarket pump has a fuel cutoff valve in it like the original VW pumps did (and I don't know of any that do), you should be able to blow into the inlet and have it exit the other tube, but not the other way around.
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Xevin 
Samba Member
Joined: January 08, 2014
Posts: 7624
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| Posted: Tue Sep 27, 2022 5:47 pm Post subject: Re: fuel pump lines on 74 SB |
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| Bambergvr6 wrote: |
Installed into my 74 Standard, with original 034 distributor (restored by Bill Fowler)
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GFY's Xevin and VW_Jimbo!  |
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| Damn that Xevin... |
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My God! Xevin and I 100% agree  |
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RexMax
Samba Member
Joined: July 21, 2022
Posts: 99
Location: S.F Bay area
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| Posted: Tue Sep 27, 2022 7:10 pm Post subject: Re: fuel pump lines on 74 SB |
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| busdaddy wrote: |
Top is usually the inlet, but there's so many aftermarket pumps with their own oddball styles it's hard to say without a pic.
You have a 50/50 chance, if it's not making fuel connected one way try the other. |
Well I used the the top port as the inlet. We shall see. I went by the length of the old hoses. I'm use to most fuel pumps using the bottom port as the inlet, or suction. The other way goes against all laws of man and nature. I'll go with it and see what happens. Thanks. |
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