Subaru Scott Posted June 17, 2018 Share Posted June 17, 2018 Well man, it's pretty hard to get an idea from your descriptions, but I think first you need to check if you have power at the fuel pump. You will have to do this with a test light or voltmeter across the two fuel pump wires where they connect to the pump. You will have to crank the engine over while looking at the light or meter for voltage. If you DO have power, then something is wrong with your pump, or the lines/tank is clogged. If you don't have power, then you need to look to the voltage regulator and alternator. If either of them are not functioning properly, you will not get power to the pump. You can also provide temporary jumper wires to the pump to see if it will run. You should be able to hear it clicking, and it will pump gas into your bucket if the fuel lines and tank are clear. Link to comment Share on other sites More sharing options...
jonpaul03 Posted June 17, 2018 Author Share Posted June 17, 2018 Pump works fine when directly connected to the battery. I have continuity b/w the pump and the VR. The alternator tested good at Autozone. I havent been able to check the power going to the pump with cranking the engine. I have bypassed the tank with fuel cans.......and still same result. The pump isnt pumping. Is there a fusable link or something I should check? From what I have read the pump gets its power from the VR....and the VR gets its power directly from the Alternator. Not sure what the issue is. Link to comment Share on other sites More sharing options...
jonpaul03 Posted August 26, 2018 Author Share Posted August 26, 2018 So..... I have continuity between all associated components and I still do not get power to my fuel pump. I have replaced the Voltage Regulator and pump itself. The generator tested good and I replaced the points/condenser. Battery is good and all fuses replaced as well. I currently have 2 pumps hooked up to test different grounds and still nothing. I bypassed the fuel tank and ran the fuel line to a gas can....still nothing. Any ideas?????? Has anyone ever seen a resistor block go bad? It is the only thing within the circuit I havent tested or replaced. Link to comment Share on other sites More sharing options...
jonpaul03 Posted January 21, 2019 Author Share Posted January 21, 2019 Has anyone eliminated the Vapor Separators on each side of the fuel tank or bypassed them at all? not sure, but could be the reason for my NOT starting/running issue I currently have. I am running out of options. Any help is greatly appreciated!! Link to comment Share on other sites More sharing options...
jonpaul03 Posted January 24, 2019 Author Share Posted January 24, 2019 Got her running....anyone with a Weber 32/36....what did your mixture and throttle adjustments end up at? Link to comment Share on other sites More sharing options...
subarujim01 Posted January 28, 2019 Share Posted January 28, 2019 I also have a 1978 gen 1 brat owned since it was new in 1978 and have enjoyed it thru the years, it's bullet proof. the issue you are having with the starting seems the be part and parcel of the weber carb design I started having the problem when I replaced the original Hitachi carb (tended to develop vacuum leaks. Replaced it with the same carb you have i still have the elect chock on it though. Had to finally get it adjusted but a mech who has the old emissions testing (tail pipe)equip. Runs great since then, except when I let it sit too long and it's cold. Then I have to use either and spray the carb to get it to start. As long as I do not let it set for more than 2-3 weeks it starts right up in the morning. I also have recently added an AC system (needed here in Tucson) I have had wiring issues since installing it but getting it worked out. Had you made sure that you do not have some of the original brat wiring connectors hooked up (do not need or want) the wire for the anti dieseling switch tied to anything And hopefully you have the vacuum line fittings that are not needed with the Weber carb sealed off. Link to comment Share on other sites More sharing options...
subarujim01 Posted January 28, 2019 Share Posted January 28, 2019 Did you get the fuel issues worked out? I added a second fuel pump and the vapor system from my 1982 donor brat. It included the vapor separators to get the weber carb to play with the rest of the system. The only issue I have now is sometimes it runs rich so have added a switch to shut off the forward engine compartment fuel pump. Link to comment Share on other sites More sharing options...
jonpaul03 Posted February 10, 2019 Author Share Posted February 10, 2019 My float valve was stuck and timing is off. I can get it to run with throttle applied, but it still wont idle. Link to comment Share on other sites More sharing options...
jonpaul03 Posted March 2, 2019 Author Share Posted March 2, 2019 I am looking for a good way to hook up the vacuum lines in my BRAT after the Weber conversion. Link to comment Share on other sites More sharing options...
jonpaul03 Posted March 8, 2019 Author Share Posted March 8, 2019 Links or pictures of your Weber conversions are greatly appreciated too! Link to comment Share on other sites More sharing options...
jonpaul03 Posted August 22, 2023 Author Share Posted August 22, 2023 I am about to have major surgery on my spine and was tossing around the idea of selling my BRAT that I have been piddlin around with all these years. It has been garage kept for its life with me and I want to find a good home for it. Link to comment Share on other sites More sharing options...
BratRod Posted August 23, 2023 Share Posted August 23, 2023 5 hours ago, jonpaul03 said: I am about to have major surgery on my spine and was tossing around the idea of selling my BRAT that I have been piddlin around with all these years. It has been garage kept for its life with me and I want to find a good home for it. I hope the surgery goes well. Did you get to enjoy your Brat at all? Take care. Link to comment Share on other sites More sharing options...
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