1962 220SE 111014 possible fuel delivery issue - Mercedes-Benz Forum

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post #1 of 3 (permalink) Old 09-03-2010, 01:34 PM Thread Starter
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1962 220SE 111014 possible fuel delivery issue

I just drove from Kansas City to my home in Denver and the Benz ran great except it would only run well on a full tank! I'd fill the tank and be good for 80, 90, 100 miles and it would start to hesitate as if it wasn't getting enough fuel. Then I would top off the tank and it would, once again, run great.
Any ideas where I should start to look for a cause?
Weak pump? Not enough pressure?

Thanks guys, I'm glad to find this forum!
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post #2 of 3 (permalink) Old 09-04-2010, 07:01 AM
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Vehicle: 1965 220S, 1999 Volvo V70 (wagon), 2006 Ford Crown Vic Police Interceptor, 72 350SL 4 Speed
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From the description, the tank has rust and bits are clogging the fuel pump inlet screen, by the rear axle. There are home kits available, such as Eastwoods, or have it done professionally. The injection pump also has an inlet screen as does the cold start valve.

A clean fuel system is vital for the injection system due to the tight tolerances.

Please update your profile. A pic or two would help as well.

Near Manassas Va. '65 220S, 2006 Ford Crown Victoria Police Interceptor, '99 Volvo V70, '72 350SL 4 speed

Not part of the in-crowd since 1952. It's BRAKES not breaks. You break a bone, use brakes to stop your car. /rant

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post #3 of 3 (permalink) Old 09-04-2010, 09:52 AM
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Vehicle: 64' 220SEc, 72' 300SEL 6.3, lots of parts
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Good advice WaltB, and
Todddennison, pull the plug in the bottom of the fuel tank. to check the screen.
The plug will be tight, needs big leverage.
I made a hex wrench tool from a 22mm or .875 (7/8) bolt head with two nuts jammed on.

The tank will drop out very easily. three fasteners maybe one on the side if it is the big tank

Brian O
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