glacier985

So the car is running thanks to this right here, when pulling the choke lever they were not moving the needles much at all similar to your issue. After some moving by hand I was able to loosen them up enough to get the car started. Now its onto to fix whatever issue I have with cylinder 6 so I can get my z back on the road.

First things first my 72 240z will not start and stay running at all. Since I purchased it almost three years ago it has slowly got harder and harder to start. I'm totally new to carburetors and need some help. I'm checked a few things and got an idea that the carbs are the problem. Engine (from the documentation I have) L28 with what I believe is the original L24 head Some type of Camshaft Upgrade Header Port/Polish SU Round top Carbs Pertronix Ignition/Coil To start this winter I replaced the points and coil with the Pertronix parts. My idea was to do this and tune the car up in the spring well come spring and it won't start. I went through the list of things I would do on a fuel-injected car. First I drained and replaced with fresh gas. Next I checked that there was spark, there was a nice blue spark. Then I checked that the carbs were getting fuel, fuel was getting to the bowl and then out the bottom line to the jet (I think that is what its called). Sure enough everything was good so I charged the battery and tried again, no go. Next I sprayed some starting fluid into the carbs and it fired up and ran for maybe 3 secs. Now that is where I'm at and not sure where to go from here. A few things to note, cylinder number 6 has an issue compression was 50 psi while all other cylinders with 165 - 170 psi. After some tests I believe it is either valve related or head gasket related. I know this needs fixed, but I would like to at least get the car idled on five cylinders before I tear into it. Unless I should do otherwise.