Guest fellfrosch Posted October 3, 2004 Share Posted October 3, 2004 just wondering if any one has any advice, car was running okayish, then i changed the points and did the timing now the car will not run without the choke on and wants to die when you put your foot down just thought i should add its a 1976 2+2 with twin su carbs Quote Link to comment Share on other sites More sharing options...
datsunlover Posted October 3, 2004 Share Posted October 3, 2004 Hmm.. well as for the car dying without the choke on, I'd say the carbs just have to be adjusted a little richer. Sounds like they are too lean, and with the choke on, it gets just enough fuel to run, but it starves it when you turn off the choke.. And you say you did the points and timing.. what's the timing set at? You might not be advanced enough, or the vac advance may be shot/not working (check the vacum line for cracks). Sounds like the same prob I had when I put my SU's on. Just a thought, (this helped me simlify things a bit) you could replace your dizzy with a newer electronic 280zx unit with the black box on it. Very simple to wire up, and it gets rid of that awful 'dual pickup/transistor ignition/relay/mess of wires' system the 280s came with. Good luck man. Quote Link to comment Share on other sites More sharing options...
briann510 Posted October 4, 2004 Share Posted October 4, 2004 does the engine run ok once it warms up? Quote Link to comment Share on other sites More sharing options...
Guest fellfrosch Posted October 4, 2004 Share Posted October 4, 2004 no engine "runs" like this all the time, will try the electronic dizzy, and i think ill get the su's rebuilt doe anyone know somewhere in brisbane, AUSTRALIA i can get this done at a reasonable price[/img] Quote Link to comment Share on other sites More sharing options...
datsunlover Posted October 4, 2004 Share Posted October 4, 2004 Doood.. just pull the carbs and clean them up yourself! Trust me, they are EASY to figure out. Just do one at a time. It took me and a friend about 2.5 hours to tear down, clean with varsol, and re-assemble both carbs. Made my own gaskets (sheet of gasket paper is cheep) and took my time. Seriously, these are probly the sipmlest carbs ever built.. and I threw them on my car and had it running in 20 mins. A week of tuning and fidling (don't have a unisyn.. did it 'by ear') and they work awesome.. come to think of it, I havn't touched them in 3 months, and the car still runs great! Quote Link to comment Share on other sites More sharing options...
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