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Difficult to Start, Rough Idle, Dies w/o Throttle 1800 1971

This a 1971 1800E D-jet setup installed in a 1967 122S. The system ran very well when it was still in the 1800E, but it giving me some grief after the transplant.

I've been able to start and run the car several times, however it take a while to get it going and requires a lot of throttle footwork to get it run up to a nice smooth "idle." It shakes like heck getting there. When I let off the throttle the engine dies quickly.

I've checked the MAP sensor of vacuum hose for leaks and it and the hose hole a good vacuum.

I'm only just getting into the D-Jet diagnosis procedure.

I have a slight suspicion that the #2 and #3 injectors may be the/part of the problem. When test running the car, I found the #2 and #3 plugs dry when the #1 and #4 plugs were wet with gas. However, when cranking with the sparks out, I appeared to get a good jet of atomized fuel from each cylinder (so much so I started a fire last time).

The valve lash has not been checked since the car was last drive. They might be out of adjustment and are probably worth a re-check for the shaking alone.

Static timing was set using the Kwas method, but w/o an idle, I can't check with the timing light.

Do any of these symptoms sound familiar?



Background
The engine features a new K&N air filter, new injectors seals, new intake and exhaust gaskets, an IPD valve cover, buna-nitril valve cover gasket, and a new Bosch Coil. There's a new dizzy cap and points, and the plug wires are new as of last year and saw little use until now. The system also has new FI-rated 5/6" fuel line to and from the fuel rail. The only wrinkle is that the Fuel rail and FPR are from a 73ES.

The engine was taken from a 1800E in early 2006 and the ports were plugged and the engine ran with SU carbs for approximately a year. Recently, I pulled the softplugs, installed the D-jet and converted the amazon to "run" with fuel injection.








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New Difficult to Start, Rough Idle, Dies w/o Throttle [1800][1971]
posted by  RepairmanJackal subscriber  on Sat Sep 27 10:46 CST 2008 >


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