Author Topic: injection fuel pump timing  (Read 2469 times)

Madmerc

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injection fuel pump timing
« on: November 08, 2015, 08:39:25 »
hi guys how do I check if the injection fuel pump timing is correct .I am getting fuel to the fuel filter then up to the pump but only a little bit of fuel in the lines , I can hear the fuel pump running all the time is that normal with the ignition on , so its pumping fuel but nothing or very little in the injection lines .any help thanks

ja17

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  • USA, OH, Blacklick
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Re: injection fuel pump timing
« Reply #1 on: November 08, 2015, 15:49:56 »
Only a very small amount of fuel will emerge at the injectors at an idle. Hold the accelerator open all the way to increase the quantity. You should see fuel emerge at each injector while cranking if you loosen the lines.
Joe Alexander
Blacklick, Ohio
1969 Dark Olive 280SL
2002 ML55 AMG (tow vehicle)
2002 SLK32 AMG (350 hp)
1982 300TD Wagon turbo 4spd.
1963 404 Mercedes Unimog (Swedish Army)
1989 flu419 Mercedes Unimog (US Army)
1998 E430
1974 450SLC Rally
1965 220SE Finback

Madmerc

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Re: injection fuel pump timing
« Reply #2 on: November 08, 2015, 23:14:07 »
thanks ja17