1980-1986 Datsun 720 forums. All 720-specific topics and discussion can be found here.

Need carb advice

Need carb advice

Postby scottscheffer » Tue Jul 24, 2012 11:23 am


Hello,
I recently bought a 1980 720. Needs a lot of work. The guy that sold it to me told me the Hitachi carb had been rebuilt. It looked pretty clean, but it still ran terrible and I suspected the carb anyway through the process of elimination. I also don't think its the exact original carb because there's an unconnected wire (the choke works fine though,) and a vacuum line with that's capped off. I ended up paying a mechanic to rebuild it again (he said it needed it.), but I still can't get it through Cali's strict SMOG test. The tester blamed a number of issues, but mainly the carb. I told him it was rebuilt twice and he said "well, it needs to be rebuilt again."
If I were to go the Weber Progressive route, would I be able to get it through SMOG? Would I be able to connect all the vacuum lines? Anybody have any first hand experience with this? Or are there any other suggestions? I've got about 25 days left to figure this out.
thanks a lot,
Scott
scottscheffer
 
Posts: 2
Joined: Thu Jun 28, 2012 1:45 pm
Car: 1980 Datusn 720 2WD

Re: Need carb advice

Postby 86 720 » Tue Jul 24, 2012 5:34 pm

Those Hitachi carbs are crap!

You're gonna either have to rebuild it or buy a new weber carb. I would recommend a new weber carb.

However if your mechanic rebuilt it, was there any guarantee with it? Sounds like the carb wasn't completely fixed, as a correctly rebuilt carb would pass emissions, especially a stock one.
86 720 PU
New cooling system, front bearings
New alternator, starter, 2 ga. battery cables,
White face Guages
6K HID headlight wiring upgrade

My build page http://forums.nicoclub.com/post5592666.html#p5592666
86 720
 
Posts: 199
Joined: Tue Sep 29, 2009 11:55 am
Car: 1986 720 4cyl Standard Cab


Return to Datsun 720