Lewis Maudlin Posted August 29, 2001 Share Posted August 29, 2001 OK, I was out driving today and getting on it a little. My car was cutting out and dying a little. I got back to town and it kept dying. It acted like it was out of gas. I looked in the engine at the clear fuel filters just before my carb and noticed that no fuel was pumping. I waited about 5 minutes and the car started pumping fuel again. I have a Holley Blue pump that is very loud and it was very quiet and barely pumping. When I got it home, it quit pumping again. The trip home was about two blocks. After a while, it started pumping again. I checked to make sure that I had gas and disconnected everything at various locations to make sure I was getting gas. I was getting gas so I started it and it quit pumping gas within a minute. The pump was still whirring only quietly. No fuel was coming through. I noticed quite a bit of rust in the fuel filter so I even blew out the line. What do you think? Is my pump biting the dust? Which pump is quieter? Does anyone have a pump that does not sound like I have a beehive in the hatch? Quote Link to comment Share on other sites More sharing options...
Mike C Posted August 29, 2001 Share Posted August 29, 2001 I don't like the Holley pumps. They are lounder than all get out and seem to fail regularly. Bang on it and see if it starts making noise again I used to keep a mallet in my Camaro for that purpose The Carter pump seems quieter and more reliable. Just base your purchase on how much fuel delivery you need for your motor. I have heard somewhere that the carbed RX7 fuel pump is good for NA mild motor. Quote Link to comment Share on other sites More sharing options...
Kevin Shasteen Posted August 29, 2001 Share Posted August 29, 2001 If rust is in the filter then maybe your fuel tank is rusting & that rust has clogged your fuel pump! Datsun tanks are metal arent they-I cant honestly remember ever tapping on one...or are they plastic? I dont think plastic tanks came on to the scene yet way back in the 70's so they must be metal; your tank is probably rusting. You'll need to buy either a new tank or remove that tank & purchase the appropriate chemicals to burn out the rust & then to reseal the inside of the tank; sometimes this works & sometimes the rust is so bad the tank is not sealable. Kevin, (Yea,Still an Inliner) Quote Link to comment Share on other sites More sharing options...
Lewis Maudlin Posted August 31, 2001 Author Share Posted August 31, 2001 OK, replace "charcoal canister" or "carbon canister" with "vapor tank" in my previous ramblings. Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted August 31, 2001 Share Posted August 31, 2001 Yep, i agree with Kevin... Sounds like a rusty fuel tank. I had to take mine out and have it cleasned because of the same symptoms. Mike Quote Link to comment Share on other sites More sharing options...
Z-Gad Posted August 31, 2001 Share Posted August 31, 2001 OOps, you already got it, I guess I should've read your other post first Quote Link to comment Share on other sites More sharing options...
Lewis Maudlin Posted August 31, 2001 Author Share Posted August 31, 2001 OK, my fuel pump problem was from tank rust, but I already knew that. I had a POR-15 tank liner kit laying around. I have a Carter 5 psi pump on the way. I think that is enough to fuel my 350hp sbc. When I took the tank down to line it, I ran into the carbon canister on the back. I have a 1974-1/2. I don't think I need the carbon canister or any of the lines. Is there any reason that I can't just run a line directly from the tank to pump to engine? Do I need some sort of breather and if so, what do I do? Tomorrow, I am finishing the lining of my tank, installing the new carter pump and maybe throwing all of that carbon or charcoal canister away. Please help! Quote Link to comment Share on other sites More sharing options...
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