1971datsun521 Posted February 17, 2020 Report Share Posted February 17, 2020 Gonna install A 32/36 Weber carburetor In place of the original Hitachi on my 1969 Datsun 510 what do I do with the Vacuum line from the distributor and the return fuel line on the original carburetor I've looked online everywhere and I can't find a Video or diagram On how to do this Quote Link to comment
datzenmike Posted February 17, 2020 Report Share Posted February 17, 2020 There should be a vacuum advance port on the 32/36..... unless this is some old POS. Hopefully you are buying a new one from Pierce or Weber with everything needed (gaskets, adapter plate, air filter etc.) and not a Chinese knock off. Just run the fuel line to the weber and leave the return line capped. Quote Link to comment
Eomund Posted February 17, 2020 Report Share Posted February 17, 2020 I have one on my 521. Would it be helpful if I posted pics for you? Quote Link to comment
banzai510(hainz) Posted February 17, 2020 Report Share Posted February 17, 2020 just hook up the vaccum adv to the carb. some L16 distributors had a threaded metal line. most are just the slip on yoke type. Quote Link to comment
1971datsun521 Posted February 17, 2020 Author Report Share Posted February 17, 2020 OK thanks I'll do that and if anyone can send me some pictures of one that's already been done just to give me a better idea thank you Quote Link to comment
difrangia Posted February 17, 2020 Report Share Posted February 17, 2020 If you haven't bought the carby yet, do like Mike suggested, make sure it's European. Made in Spain should be cast into the main body. Quote Link to comment
1971datsun521 Posted February 17, 2020 Author Report Share Posted February 17, 2020 Yes I did the research Already I think redline is what I'm looking at Yeah and I think it has to say Spain on the carburetor itself Quote Link to comment
1971datsun521 Posted February 17, 2020 Author Report Share Posted February 17, 2020 Yeah a couple of years ago I decided to pick up datsuns that weren't running or just laying around n work on them here's the first 2 I picked up bout a 1 1/2 ago Here is what I'm working on right now Quote Link to comment
Bleach Posted February 17, 2020 Report Share Posted February 17, 2020 You can also add a second fuel connection on to the carb and run the fuel in a loop. The factory return line should have a reducer to help keep some back-pressure in the fuel line. If you run it in a loop, then at idle and partial throttle, your fuel filter will be cleaning out more of the particles from the tank. I did that on an L18 years back because it was obvious there was rust in the tank. I changed out that fuel filter at every oil change. Quote Link to comment
datzenmike Posted February 17, 2020 Report Share Posted February 17, 2020 The 510 had a restriction on the carb inlet and not in the line to the tank. Very different from the L20B setup. Quote Link to comment
edekalil Posted March 9, 2020 Report Share Posted March 9, 2020 Here's mine it had a connection on the side facing the head. 1 Quote Link to comment
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