PineClone Posted March 25, 2013 Author Report Share Posted March 25, 2013 A CLUE??? I contacted the previous owner to get some info about the weber he installed. He said he bought the carb brand new. I asked him a few follow-up questions and he said that he "tuned the carb to get it running well"...and that he "ordered jets but returned them because it was running so well". So that makes me think the issue might be the jetting. Thoughts on this??...and if so, what is the process for re-jetting it? And once again, THANKS!! Quote Link to comment
Slinky Dogg Posted March 27, 2013 Report Share Posted March 27, 2013 Ok so apparently my timing was way off and I was at idle at like 2700 rpms nows it's at good timing, and carb is tuned! Better gass and also found out my egr was not connected.... Whoops.... I'll post pics soon, Quote Link to comment
Slinky Dogg Posted March 27, 2013 Report Share Posted March 27, 2013 Still learning but the b210 gets chicks! Quote Link to comment
PineClone Posted May 28, 2013 Author Report Share Posted May 28, 2013 Just wanted to close the loop (at least partially) on my gas mileage issue. I replaced the vacuum advance and that made a noticeable difference in performance and mpg. Basically doubled the gas mileage up to 22 mpg. So there is still work to do...Next step is to check the jetting on the weber. One thing i'm struggling with is the idle adjustment. When i go through the steps for tuning the carb, i start by backing off the idle adjustment so that it is not touching. Then go through the process of adjusting the idle mixture screw. When i turn it in, the car begins running rough (as it should). Then I back it off slightly until it runs smooth. However, at this point the idle remains quite high. So there is no need to adjust the fast idle screw at all because that will only make the RPMs higher. Anyway, this will all need to wait...as i currently have the B210 up on blocks to swap in a 5 speed. Thanks to all for the help. Quote Link to comment
Toyanvil Posted May 30, 2013 Report Share Posted May 30, 2013 Your Weber is a good carb and just needs setting up. Your Primary idle jet should be a .55 as a starting point, you can check it in 2 mins. Here is a link for tuning it. http://www.redlineweber.com/html/Tech/carburetor_set_up_and_lean_best_.htm your fuel pressure should not be over 2.5 to 3 psi. I would start by pulling the spark plugs and looking at the color, should be light brown. white is lean, black is rich. Also check your timing with the vacuum advance hooked up, at high RPMs some Weber 32/36 vacuum port will hold vacuum all the way to top end without backing off.(meaning mechanical and vacuum are both advanced at the same time at top end) If this is happening your total end timing will be way to high (should not be over 34) you can burn a piston. I have been run a Weber on my A14 for 30 years and it has been great. Here is a list if the jets in my A14 (should be a good starting place) Primary main jet 140 Secondary main jet 135 Primary air corrector jet 165 Secondary air corrector jet 160 Primary idle jet .55 Secondary idle jet 50 Primary emulsion tube F50 Secondary emulsion tube F6 2 Quote Link to comment
PineClone Posted May 30, 2013 Author Report Share Posted May 30, 2013 Good stuff. Thanks! Will probably need to take it to the shop for timing check. There are no marks on the crank that we could find. Quote Link to comment
Toyanvil Posted May 31, 2013 Report Share Posted May 31, 2013 The marks are on the timing cover and there is a groove on the pulley. Quote Link to comment
B210GX Posted May 31, 2013 Report Share Posted May 31, 2013 Anyway, this will all need to wait...as i currently have the B210 up on blocks to swap in a 5 speed. Does this mean you are not going to be ready for Canby? If we were not so busy at work I'd come help ya this weekend. Quote Link to comment
PineClone Posted May 31, 2013 Author Report Share Posted May 31, 2013 Canby? I'm making good progress when i can actually find time to work on it. Should have it out this weekend and start the install. Quote Link to comment
PineClone Posted May 31, 2013 Author Report Share Posted May 31, 2013 The marks are on the timing cover and there is a groove on the pulley. Should have been more clear. The marks are obvious. There is not a groove on the pulley that we can find. But it must be there....will look harder. Quote Link to comment
B210GX Posted June 1, 2013 Report Share Posted June 1, 2013 Canby? WTF? :) Only ...from what I hear ... biggest Datsun car show in the country.. I'm sure someone will correct me if I am wrong.... http://community.ratsun.net/topic/44198-canby-2013-where-wet-dreams-come-from/ Where have you been hiding? JK Quote Link to comment
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