Datsun Roadster Forum-311s.org

Hi. I just joined the Forum because my son, who I had just drooped off at the Freshman dorm, called up and wanted go buy a 69 2000. It was 2 1/2 hours away from me and had not been started in 7 years. The owner had some health problems and could no longer drive a clutch so it had been setting. My son wanted it and assured me he would come home to work on it. I must admit that I knew that would probably not happen until Christmas but I thought I would give him the benefit of the doubt. After 5 weeks and a "I might be home for Thanksgiving" I finally could not stand it any longer so last week I decided to start the resuscitation process. After Marvels Mystery Oil in the cylinders, hand turning over, oil change, fuel lines blown out, tank drained and points cleaned I decided it was time to put some fuel into the carbs. At this point I must admit that I am a 60's Mustang Man and know nothing about SU carburetors so I got on the internet to find out how to even get gas into the carbs. I managed to spray some in each and it started and ran for about 10 seconds. Yeah!
After several YouTube videos, seeing that there are very few moving parts I got brave enough to start taking the back one apart. I want to leave the carburetor bodies on so as not to have to take the linkages apart. The back one was bone dry with a brown dust caked in the bowl, screen and fuel line to dash pot. I soaked and cleaned everything. The mixture jet for the choke slides up and down freely so I decided not to take it apart.
The front carb had the normal jelly sludge so it was easier to clean but the mixture jet is stuck an will not move up or down. I also have not been able to brake loose the screw that holds the linkage to the mixture jet. I have been spraying penetrating oil on it for 5 days and no movement.

Any one have any thoughts?

Welcome to our world. Now about that stuck screw. A carburetor is not the best place to be applying heat to, but if you can isolate from any fuel source or residual fuel, than a small propane torch might get the job done. Sometimes a longer larger screwdriver gives you a better angle and more torque. If it's a Phillips head screw and you are worried that you'll round out the X then you can turn it into a slot head. I've had good luck using a dremmel tool with a 1" cut off disc making the slot. Good luck

Impact screwdriver?
High wattage soldering iron held against the screw head for a while.
Maybe dry ice on the screw.
Don't strip the screws, they are n odd thread.
Dan

That is great news! If the engine starts and runs (and you get the carbs sorted out) then the next step is the brakes. Fortunately you can get a lot of the brake parts still at a reasonable price so as long as you can get the lines blown out / cleaned out you should be able to get them working. And you'll get to learn about how Datsun put the bleeder nipples at low points in the hydraulic system - dummies!

Good luck and have fun.

James

Congrats on getting it going!