Date registered: Nov 2006
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
can't get my pagoda to run
Hi all. I have a 71 280SL which I was driving home almost 2yrs ago when it just stalled out in front of my apartment complex. I pushed it into the garage and I have been unable to get it to run since then and now I'm at witts end. I have been back and forth on the pagoda forum which has been extremely helpful and through their expertise I have ruled out a lot of things. However, the problem persists and we have not been able to come up with a diagnosis. I'm hoping that someone here might have some insight.
Initially, I noticed that the fuel pump wasn't running, so I checked the fuse. It was burned out. I replaced it and the pump started working. I then checked the current draw at the fuel pump fuse terminals. It was drawing 3.2 amps which is within normal range. The car still would not start. I then checked the fuel pressure and volume. The pressure was 16 psi (normal) and the volume was 600-700cc/15 sec which is under the 1000cc required output. This should nevertheless be enough to get the car to idle and probably run just fine.
I then tackled the ignition system. I replaced points, condenser, cap, rotor, plugs, wires, coil, ballast resistors, set the dwell to 38 and the car started. It however would not run. The engine would run roughly for a few minutes, put out gray/white smoke (not vapor), backfire occasionally, and eventually stall once too much or too little throttle was given. The car has remained in ths condition ever since.
I then checked compression and all six cylinders were around 200 psi. 197-201.
I turned my attention back to the fuel system. I check the main fuel filter in the engine which was clean. I replaced it anyway. I checked the small filter screen in the electric fuel pump where the intake line from the tank hooks up. It was clean. I then peered into the tank from the top through the sender hole. The tank was clean with bright shiny metal surface on the inside. I also blew out the fuel return line where it originates from the injection pump. The line was clear. At this point I ruled out a fuel tank, fuel pump, fuel line issue. I checked the rack in the injection pump which moved freely and I checked the cold start valve which doesn't leak and sprays a nice mist when cranking the engine cold.
I messed around with the timing, turning the distributor from right to left but still no change.
I'm getting frustrated here. Everything checks out but the car still won't run properly. Any suggestions appreciated.