Vacuum pump failure caused by weak seal on fuel injectors?

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Vacuum pump failure caused by weak seal on fuel injectors?

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Vacuum pump failure caused by weak seal on fuel injectors? - 8/12/2007 8:45:58 AM

diesel77

Posts: 1
Joined: 8/12/2007
Status: offline

I have a 1995 300E Diesel. A year ago I had the fuel system upgraded for the new diesel fuels. This summer my vacuum pump broke and the ball bearings shot out of the case and went into the various places in the car - did not damage the engine. However, simultaneously I have been told that the injectors are leaking fuel on the exterior and the seating for the injectors needs to be rebored and fitted with new seals. Could the vacuum pump have broke from being over worked from the compression problem of the injectors? I had a new vacuum pump put on and suposedly they found all the loose bearings, but now the car is making grinding noises when it accelerates and the smell of diesel fuel is very strong. Help!

Post #: 1

RE: Vacuum pump failure caused by weak seal on fuel inj... - 8/12/2007 2:37:55 PM

ForcedInduction

Posts: 893
Joined: 5/20/2006
From: Federal Heights, Colorado
Status: offline

The vacuum pump has nothing to do with the fuel.

_____________________________

1980 240D 3.0VNT 222K Miles. OM617.95, GT2256V VNT turbo, 4-speed manual, 3.46 diff, 15mm rear swaybar, ALDA removed, no EGR and Amsoil by-pass oil filter. Currently 107HP and 195lb/ft of torque at the wheels.

www.youtube.com/Turbo617

(in reply to diesel77)

Post #: 2

RE: Vacuum pump failure caused by weak seal on fuel inj... - 8/17/2007 8:12:10 PM

patc

Posts: 3
Joined: 8/17/2007
Status: offline

vac pump failure was a common fault
bosh injectors very robust and rarely leak through body probably leak off pipes leaking
leak off pipes are small flexi hose comming from fuel filter to 1st injector then linking to each injector inturn very common for fuel to seep
through giving heavy smell very inexspensive to replace

(in reply to ForcedInduction)

Post #: 3

RE: Vacuum pump failure caused by weak seal on fuel inj... - 8/17/2007 10:01:57 PM

widmer

Posts: 31
Joined: 4/17/2006
Status: offline

Not sure if this helps much but-

There's a leak in my vacuum system somewhere that causes my automatic locks to not work (1975 300D, automatic locks powered by vacuum pump). The vacuum pump failed like 2 weeks after I bought this car a year and a half ago. It actually basically broke completely in half, believe it or not. I had it replaced, and though I never fixed the leak, it hasn't failed at all since. Not sure if this loosely applies to your situation, being that my pump basically is always being asked to replenish pressure every waking moment of the car. But I know the durability of these cars has changed substantially in the past 20 years.

(in reply to patc)

Post #: 4