 Fuel Pump, Supply, Return, Damper |
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| turnaround89 |
 Mar 5 2009, 01:23 PM
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#1
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Senior Member  Group: Members Posts: 671 Joined: 17-May 08 From: Rockford, Illinois Member No.: 9,067 Region Association: Upper MidWest  |
I just put my fuel pump back in and had some questions about the S R and D on it. I understand that the S, is the line from the tank. the R is return from the carbs, and the D is Damper, however, is the D the line that fuel runs through to the carbs? Its the only remaining option i have for lines, just wanted to make sure?
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| SLITS |
Mar 5 2009, 06:13 PM
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#2
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"This Utah shit is HARSH!" Group: Benefactors Posts: 13,602 Joined: 22-February 04 From: SoCal Mountains ... Member No.: 1,696 Region Association: None  |
You could plug off the return line
or You could get a fuel pressure regulator that incorporates a return to the tank. This way you would have fresh cool fuel to feed the carbs. Since you bought the pump ... the #1 option is the best ... plug the return line. |
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| aircraftdesign |
Mar 5 2009, 06:57 PM
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#3
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Newbie Group: Members Posts: 13 Joined: 2-January 09 From: huntington beach, ca Member No.: 9,893 Region Association: None |
QUOTE(SLITS @ Mar 5 2009, 04:13 PM)  You could plug off the return line or You could get a fuel pressure regulator that incorporates a return to the tank. This way you would have fresh cool fuel to feed the carbs. Since you bought the pump ... the #1 option is the best ... plug the return line. If one were to use the existing FI pump and use a bypass regulator to reduce the pressure from the FI range down to the proper carb range you potentially could plumb the return back through the tunnel and into the other nipple at the bottom of the tank. This would not be a practical solution during any condition other than when you have a nearly empty tank as the static pressure of a full tank would work against the return flow. The best solution if you retained the FI pump would require a new return inlet at the top of the tank - probably much easier to get a different electric fuel pump correctly rated for carb pressure and eliminate all the rework and safely operate the vehicle |
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Posts in this topic
turnaround89 Fuel Pump Mar 5 2009, 01:23 PM
type47 Careful. It sounds like you are using a D-jet fuel... Mar 5 2009, 01:29 PM johnnie5 You need a different fuel pump for carbs, look her... Mar 5 2009, 01:35 PM Cap'n Krusty Unless you're speaking of a 70-71 911 T pump, ... Mar 5 2009, 01:46 PM turnaround89 Which one from CB, there is a 3.5 and 5.5lb pump? Mar 5 2009, 02:30 PM
SirAndy
Which one from CB, there is a 3.5 and 5.5lb pump?... Mar 5 2009, 03:26 PM effutuo101 Here is a link for the products I am useing.
Fuel ... Mar 5 2009, 02:46 PM turnaround89 Ordered up the new pump :Qarl: . Now here comes a... Mar 5 2009, 03:38 PM r_towle When I replaced one of these I looked up the specs... Mar 5 2009, 07:50 PM turnaround89 thanks everybody. maybe my car will driving next w... Mar 5 2009, 10:20 PM aircraftdesign
thanks everybody. maybe my car will driving next ... Mar 7 2009, 06:06 PM |
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