What do I switch to?
Thread Starter
Racer
Joined: Feb 2001
Posts: 377
Likes: 0
What do I switch to?
Hi All,
I want to switch the fuel line from the pump to the carb. On my '69 I have the one that goes from the carb, jumps over the A.I.R. pump, down to a gf432 inline filter, then down to the pump. A return line also comes off the filter. I removed the smog pump for now, and the fuel filter is stuck out in the middle of nowhere. Is there a year that is different and would bolt right in? I need to change the pump anyway and I thought it would be a good time to do the line as well. I thought '70 and up had the return line fitting at the pump.
Anybody know what I'm talking about and can advise? Here's a pic.
Thanks
Jon
I want to switch the fuel line from the pump to the carb. On my '69 I have the one that goes from the carb, jumps over the A.I.R. pump, down to a gf432 inline filter, then down to the pump. A return line also comes off the filter. I removed the smog pump for now, and the fuel filter is stuck out in the middle of nowhere. Is there a year that is different and would bolt right in? I need to change the pump anyway and I thought it would be a good time to do the line as well. I thought '70 and up had the return line fitting at the pump.
Anybody know what I'm talking about and can advise? Here's a pic.
Thanks
Jon
Drifting
Joined: Nov 2000
Posts: 1,261
Likes: 0
From: Oak Harbor, Wa
Re: What do I switch to? (Jon69L46)
Not trying to be a wise guy, but I don't see the problem. I always run rubber fuel lines, so I don't know why it is hard to replace. Know that did not help, but just looking for clarification.
[Modified by vethead, 3:09 PM 9/16/2002]
[Modified by vethead, 3:09 PM 9/16/2002]
Thread Starter
Racer
Joined: Feb 2001
Posts: 377
Likes: 0
Re: What do I switch to? (vethead)
Not trying to be a wise guy, but I don't see the problem. I always run rubber fuel lines, so I don't know why it is hard to replace. Know that did not help, but just looking for clarification.
[Modified by vethead, 3:09 PM 9/16/2002]
[Modified by vethead, 3:09 PM 9/16/2002]
Thanks
Jon
Le Mans Master
Joined: Sep 2000
Posts: 5,635
Likes: 4
From: Orlando Floriduh
Re: What do I switch to? (Jon69L46)
The set up you have was only used for a few early years and only on Q-jet engines. The return line is on later model pumps so you can use a pump that has a return line and replace the filter with your choice of filters from stock with no return line to custom in-line type. I certainly would not use rubber hoses. That is asking for trouble. They not only can burst or leak but they tend to swell under pressure and can cause vapor locks. A pin hole in a rubber line will spray your engine compartment with fuel and WILL ruin your day if it catches fire. Pieces of rubber can come off inside and get into the carb. Those things will cause you untold hours of trouble shooting grief. If you must go with rubber make sure it is high quality FUEL line (preferably S/S braided covered)and not just rubber hose for Vacuum. Sorry for the rant but rubber hoses are one of my pet peeves
Thread Starter
Racer
Joined: Feb 2001
Posts: 377
Likes: 0
Re: What do I switch to? (silvervetteman)
The set up you have was only used for a few early years and only on Q-jet engines. The return line is on later model pumps so you can use a pump that has a return line and replace the filter with your choice of filters from stock with no return line to custom in-line type. and not just rubber hose for Vacuum. Sorry for the rant but rubber hoses are one of my pet peeves
And as there is a difference between vacuum and fuel line, some do prefer the ease of a rubber line. I don't.
So what year can I swap it to?
Jon
Drifting
Joined: Oct 2001
Posts: 1,699
Likes: 1
From: Westampton NJ
Re: What do I switch to? (Jon69L46)
Buy a fuel pump from '73 and later and it has the return on the pump...As far as fuel lines go...
Email Lars (do a search of his forum name) and ask him for his fuel line "paper." It will list the parts and technique for custom bending your own fuel line that allows the use of a $4 filter instead of the uber-expensive GF-432. I recommend his solution!
:cheers:
Email Lars (do a search of his forum name) and ask him for his fuel line "paper." It will list the parts and technique for custom bending your own fuel line that allows the use of a $4 filter instead of the uber-expensive GF-432. I recommend his solution!
:cheers:
Senior Member since 1492
Joined: Aug 2000
Posts: 87,922
Likes: 156
From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Re: What do I switch to? (silvervetteman)
I switched to SS braided & AN fittings. Got the fuel pump to Holley carb kit from Summit. The fuel filter is inside the crhome log under the air filter---right after the pressure gauge. Also put on a Holley fuel pump at the same time.
Len
Len
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