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Old 08-05-2015, 12:20 PM
Frank Reiner Frank Reiner is offline
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Join Date: Feb 2011
Location: Modesto CA
Posts: 4,360
Quote:
Originally Posted by JimRockford View Post
I have a '76 450SL that has fuel starvation at WOT, coughs and the tach goes nuts.

On the high way to pass a truck, my SL will top out at 80 MPH and then has the same issues. Fuel starvation.

Other then that, the car drives just fine. No vac leaks (smoke tested it). Starts and drives off without an issue.

Any ideas what I should start looking at?
Inasmuch as the tachometer is electrically powered and derives its signal from the ignition amplifier (switchgear in MB-speak), look to the condition of all of the components of the ignition system before suspecting the fuel system.
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