1981 300SD turbo - PeachParts Mercedes-Benz Forum

inventor · #1 06-15-2007, 08:23 PM

Hi, I like to know, this is really strange never heard of before, the engine keeps on running after turning the key off.... thanks

Brian Carlton · #2 06-15-2007, 09:34 PM

Welcome to the forum.

We've heard it........about 1000X.

Any chance you own a Mityvac? You either have a vacuum leak and one of the hoses is not connected.........or the shutoff diaphragm.........or the ignition switch.........has failed.

85chedeng300D · #3 06-16-2007, 12:17 AM

Did you have an oil change? Did you change the filter? You probably, accidentally pilled some vacuum connection in that area. Take a good look and reconnect if 1 or so vacuum hose was disconnected.

inventor · #4 06-16-2007, 12:28 AM

Quote:

Originally Posted by Brian Carlton

Welcome to the forum.

We've heard it........about 1000X.

Any chance you own a Mityvac? You either have a vacuum leak and one of the hoses is not connected.........or the shutoff diaphragm.........or the ignition switch.........has failed.

No no Mityvac? what is that? I own 1981 300SD turbo, I will look for the diaphram.....thanks

inventor · #5 06-16-2007, 12:32 AM

Quote:

Originally Posted by 85chedeng300D

Did you have an oil change? Did you change the filter? You probably, accidentally pilled some vacuum connection in that area. Take a good look and reconnect if 1 or so vacuum hose was disconnected.

Nothing I did, it just one day when I was dressed up for a wedding it decided to keep on running.

P.E.Haiges · #6 06-16-2007, 01:22 AM

inventor,

A Mityvac is a tool that applies a vacuum via a hand pump and has a gage to read the vacuum. Very handy tool. Can also be used to bleed brakes.

Its available at Harbor Freight and other places.

P E H

vstech · #7 06-16-2007, 09:00 AM

inventor, if you look at the engine, the IP is the big metal part with all the metal lines going up to the motor. on the very back of it, there should be a brown plastic line going into it. pull the plastic line out and see if there is oil in it. if so, your diaphram has failed and it is pulling motor oil into the vacuum system. if it is dry, follow the line up to the firewall, through that it goes under your dash to the ignition switch. out of the switch another line goes back to the large vacuum system of the pump. connected to that line are tees with other lines going to transmission, egr system, and brakes etc... look for any deteriorated tees, disconnected lines etc. fix whatever you find bad. if nothing is broken or disconnected, you may have a bad vacuum pump itself. you will need a vacuum gauge, or mityvac to trace the problem.

P.E.Haiges · #8 06-16-2007, 09:59 AM

vstech,

The lines going out of the IP do NOT goto the motor, they goto the injectors that are located in the head. Wires and cables goto the motor (starter).

PS: Have U discovered capital letters yet? They are usually used at the beginning of a sentence or paragraph.

P E H

Brian Carlton · #9 06-16-2007, 10:14 AM

Quote:

Originally Posted by P.E.Haiges

vstech,

The lines going out of the IP do NOT goto the motor, they goto the injectors that are located in the head. Wires and cables goto the motor (starter).

PS: Have U discovered capital letters yet? They are usually used at the beginning of a sentence or paragraph.

P E H

Now, Paul, you very well know that the thing in the middle of the bay beneath the hood is an engine. It does have a starter motor attached to it.

The U is especially attractive.........typically utilized by persons of the age of 18 years who have not mastered the art of writing.........

85chedeng300D · #10 06-16-2007, 11:27 AM

Quote:

Originally Posted by Brian Carlton

Now, Paul, you very well know that the thing in the middle of the bay beneath the hood is an engine. It does have a starter motor attached to it.

The U is especially attractive.........typically utilized by persons of the age of 18 years who have not mastered the art of writing.........

....can capitalize....but can't spell.....?

dunl · #11 06-16-2007, 12:38 PM

Looking at it from a Language Arts persepctive, I'm guessing English is not inventor's first language.

inventor · #12 06-16-2007, 12:48 PM

Now now lets not get in to speling and gramer contest.......Information is what we are after so be nice to eatch other.LOL LOL

CAN YOU READ THIS ?

i cdnuolt blveiee taht I cluod aulaclty uesdnatnrd waht I was rdanieg. The phaonmneal pweor of the hmuan mnid, aoccdrnig to a rscheearcher at Cmabrigde Uinervtisy, it dseno't mtaetr in waht oerdr the ltteres in a wrod are, the olny iproamtnt tihng is taht the frsit and lsat ltteer be in the rghit pclae. The rset can be a taotl mses and you can sitll raed it whotuit a pboerlm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe. Azanmig huh?

Yaeh and I awlyas tghuhot slpeling was ipmorantt !

inventor · #13 06-16-2007, 12:55 PM

Quote:

Originally Posted by dunl

Looking at it from a Language Arts persepctive, I'm guessing English is not inventor's first language.

Greek
English
Spanish
pig Latin
European sine language..

Lets have fun..

TheDon · #14 06-16-2007, 01:09 PM

I've never mastered pig latin...

Brian Carlton · #15 06-16-2007, 01:09 PM

Quote:

Originally Posted by inventor

Now now lets not get in to speling and gramer contest.......Information is what we are after so be nice to eatch other.LOL LOL

CAN YOU READ THIS ?

i cdnuolt blveiee taht I cluod aulaclty uesdnatnrd waht I was rdanieg. The phaonmneal pweor of the hmuan mnid, aoccdrnig to a rscheearcher at Cmabrigde Uinervtisy, it dseno't mtaetr in waht oerdr the ltteres in a wrod are, the olny iproamtnt tihng is taht the frsit and lsat ltteer be in the rghit pclae. The rset can be a taotl mses and you can sitll raed it whotuit a pboerlm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe. Azanmig huh?

Yaeh and I awlyas tghuhot slpeling was ipmorantt !

That's fantastic. Hattie has a chance in life..........