Pagoda SL Group
W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: gcw206 on June 28, 2015, 16:03:06
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Hello,
I have a 1969 280SL, and it wants to stall after starting. After I turn the key, it will "catch", rev to 1000+/-, and then want to stall. She will usually keep running, and if I manage the throttle carefully I can work through this "flat spot". After the initial start up, she runs and drives just fine. This problem was first noticed after I replaced the starter with the new "High Torque" Model. However, the issue got worse after I did the following:
1. I installed a new Pertronix Ignition System, along with their Flamethrower Coil;
2. I installed new Bosch Injectors, fuel filter, and new NGK spark plugs;
3. I rebuilt and adjusted the Throttle Linkage (it was very worn);
Other than this starting issue, the car has never idled/ran this good!
I suspect the Cold Start Valve is faulty, or maybe my Throttle Adjustment could be off a bit?
Anybody have any ideas?
Thank you,
Galen
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Sounds to me like your throttle needs adjustment. Have a read in the Technical Manual under Linkage Tour.
I had similar issues two years ago and The Benz Dr. Made a linkage adjustment and ever since then no more issues.
Good Luck!
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Sounds to me like your Won't Run Device aka Warm Running Device (WRD) isn't working right, probably a bad thermostat and/or stuck air slide. You get a quick shot from the cold start valve but then you don't have enough enrichment for a smooth warm up. Lots of posts on how to test the thermostat and free up the air slide.
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I would agree here. ( OMG, I actually did that!!? ) :)
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Sounds to me like your Won't Run Device.....
Chuck,
That's hilarious! I love it.
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Update:
I replaced the WRD air filter, and started the car. Then I removed the new air filter, and checked for suction. It was pretty good, and when I covered the mounting port, the car would almost stop running. I drove the car until it reached operating temperature, and then checked the mounting hole. There was no suction at all; I would assume that indicate the WRD is operating properly?
What is left? Throttle linkage? Cold Start Valve?
Anybody have any ideas?
Galen
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I would agree here. ( OMG, I actually did that!!? ) :)
Yes you did Dan and a fine job you did do ... The nice thing about it was you charged me $0.00 for that service :) it was our first meeting then I did pay for dinner that evening ;D