dblott
01-09-2010, 09:43 AM
Charlie,
I’ve got a ’78 Datsun 620 Kingcab which is an extra vehicle. I’ve been driving a company pickup since ’88 so the Datsun has never been driven enough to keep the clutch disks from sticking to the flywheel, a problem it had when I got it from my grandpa’s estate for $1 back in ’92. My personal rig is a 99Yukon (fully loaded with 6” lift, Hypertech III programmer, K&N filter and 35s. My wife drives “my” 2009 G8GT. Just kidding, it’s hers, but I think I have her talked into an exhaust mod for this summer. My daily driver is a 2008 F350 4x4 (company supplied).
The original problem with the Datsun:
The main reason at the time for not driving it was it wouldn’t idle well without blipping the throttle to keep it going. I took it to a shop for a tuneup (probably in’96). He said he couldn’t get it without rebuilding the carb or a new one. Didn’t have money at the time for working on an extra car so I let it slide.
Summer 2009:
I reconditioned the disks, cleaned up the pressure plate, bought a new throwout bearing and pilot bearing and got it runnable this summer. I bought new plugs, fuel filter and pcv. I know the gas could be suspect as it had just a little above empty from pre E10 days with stabile, and added ¼ tank of new and a carb cleaner additive when I started working on it). I tweaked the carb adjustments where it would idle roughly when warm. I pulled the fuel line from the pump and it seems to pump plenty of fuel.
When I first start it, it will run for about a minute then it dies. I can’t save it with the throttle. It will not start again until I add about 2 fingers of gas to the carb. Then it will start and run good enough to move it around the driveway and will idle (roughly) on its own when warmed up. I would like to rebuild the carb, but the rebuild kit looks to be hard to find. (haven’t tried Nissan yet). I would consider new carb and realize this will probably be what it takes, but would like to try rebuild first. I think I can duplicate any gasket thicknesses I may need to make.
My questions:
From the symptoms I described, do you think there maybe something else going on also? Such as the electric choke or some other item? If the rebuild kit can’t be found, and I need a new carb, are there any aftermarket ones that will work on this pickup? I seem to remember that some aftermarket carbs don’t do well in imports.
I’m seriously thinking about thinning the herd(cars not kids), and letting kid #3 trade it in towards her own car.
Thanks for any ideas,
Dale
I’ve got a ’78 Datsun 620 Kingcab which is an extra vehicle. I’ve been driving a company pickup since ’88 so the Datsun has never been driven enough to keep the clutch disks from sticking to the flywheel, a problem it had when I got it from my grandpa’s estate for $1 back in ’92. My personal rig is a 99Yukon (fully loaded with 6” lift, Hypertech III programmer, K&N filter and 35s. My wife drives “my” 2009 G8GT. Just kidding, it’s hers, but I think I have her talked into an exhaust mod for this summer. My daily driver is a 2008 F350 4x4 (company supplied).
The original problem with the Datsun:
The main reason at the time for not driving it was it wouldn’t idle well without blipping the throttle to keep it going. I took it to a shop for a tuneup (probably in’96). He said he couldn’t get it without rebuilding the carb or a new one. Didn’t have money at the time for working on an extra car so I let it slide.
Summer 2009:
I reconditioned the disks, cleaned up the pressure plate, bought a new throwout bearing and pilot bearing and got it runnable this summer. I bought new plugs, fuel filter and pcv. I know the gas could be suspect as it had just a little above empty from pre E10 days with stabile, and added ¼ tank of new and a carb cleaner additive when I started working on it). I tweaked the carb adjustments where it would idle roughly when warm. I pulled the fuel line from the pump and it seems to pump plenty of fuel.
When I first start it, it will run for about a minute then it dies. I can’t save it with the throttle. It will not start again until I add about 2 fingers of gas to the carb. Then it will start and run good enough to move it around the driveway and will idle (roughly) on its own when warmed up. I would like to rebuild the carb, but the rebuild kit looks to be hard to find. (haven’t tried Nissan yet). I would consider new carb and realize this will probably be what it takes, but would like to try rebuild first. I think I can duplicate any gasket thicknesses I may need to make.
My questions:
From the symptoms I described, do you think there maybe something else going on also? Such as the electric choke or some other item? If the rebuild kit can’t be found, and I need a new carb, are there any aftermarket ones that will work on this pickup? I seem to remember that some aftermarket carbs don’t do well in imports.
I’m seriously thinking about thinning the herd(cars not kids), and letting kid #3 trade it in towards her own car.
Thanks for any ideas,
Dale