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1973 Mercedes Benz 450sl high idle at cold start

Tiny
450SLBLUES
  • MEMBER
  • 1973 MERCEDES BENZ 450SL
  • V8
  • 2WD
  • AUTOMATIC
  • 93,000 MILES
When the car is cold, it first takes about 10 seconds to start and then idles at 1500 to 1800 until the engine reaches about 175 degrees. Where do I start to resolve this problem.I already set the points and timing to spec. Thanks
Thursday, July 16th, 2009 AT 11:07 PM

1 Reply

Tiny
BUDDYCRAIGG
  • MECHANIC
  • 2,262 POSTS
Does the car have a carburetor on it?
If it does, it sounds like the choke AND the fast idle cam is not set (or moving) correctly.

With only 93, xxx miles on a car that old, I wouldn't be a bit surprised if the carb was gummed up.
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Friday, July 17th, 2009 AT 12:04 AM

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