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Old 10-24-2001, 02:59 PM
Supreme Dalek
Posts: n/a
Quick Bosh MW fuel pump questions

Here some questions I have regarding the Bosch MW fuel pump used in the 5 cylinder Mercedes turbodiesel:
  • Can I upgrade the plungers from 5.5mm to, say, 7mm without sacrificing idle?
  • Is there a way to adjust the low end in the pump without touching the high end and vice versa? In other words, if I adjust the pump to deliver more fuel at boost, would it be annoyed at idle?
  • I was told the pump is designed to retard fuel delivery when it gets close to its upper limit. Can that be adjusted?
  • Are the fire sequence off the 5 cylinder mercedes turbodiesel and the Audi 5000 turbodiesel the same?

Thanks for any help!
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Old 10-24-2001, 08:28 PM
Registered User
Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
To give the car more fuel under boost, all you need to do is adjust the pluger that is going to the anaroid valve.
Donnie Drummonds
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Old 10-24-2001, 10:19 PM
Supreme Dalek
Posts: n/a
But, that works only up to a certain point; that will not even reach 10% extra fuel delivery. And, what I am talking is something in the order of doubling the fuel delivery.
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