Re: [MBZ] vacuum pump 300D
#6 is the straightest. it is most subject to the vibration. the others have more bends to absorb the stress. same as putting a coil in the line to/from a compressor. On 11/15/09 2:19 AM, Peter Frederick wrote: Brown line is supply, brown with blue stripe goes to the servo. Yes, there are two lines to the keyswitch. Peter ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- 87 300SDL, 87 300D, 81 240D, 200D ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] vacuum pump 300D
you have the 2 vacuum lines reversed. Michael Esh wrote: Thank you both for the info. I have corrected the problem, it was a leaky connection under the dash. Now I have a new problem. The car will not continue running after I hook up the vacuum line the allows the key to shut off the engine. If I disconnect the line the car will start but not shut off. Any ideas? Mike On Nov 14, 2009, at 12:22 PM, Jim Cathey wrote: My auto shutoff is and not working correctly...about 5 pounds of vacuum when I check it. You might find the vacuum parts of our old 240D's saga interesting: http://userweb.windwireless.net/~jimc/mb240d.html A lot of wasted effort that was, in the end, solved with a drill bit. -- Jim ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- Kaleb C. Striplin/Claremore, OK 95 E300, 92 500SEL, 92 300SD, 92 300E 4Matic, 91 350SDL, 91 300D, 89 560SEL, 87 300SDL x2, 85 380SE 5.0 Euro, 85 190D, 84 190D, 84 300D euro manny, 76 240D, 76 300D, http://www.okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] vacuum pump 300D
Brown line is supply, brown with blue stripe goes to the servo. Unless somebody reversed them at the valve when they had it apart! -- Jim ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] vacuum pump 300D
I think Peter explained it well enough, but if not, I'll give it a shot. When in stop position, the two lines are connected by the keyswitch valve, and it doesn't matter which is which. In the run position, the shutoff valve side is open to atmosphere and the vacuum source side is closed off. This allows air to the shutoff valve so it can deactivate. Like Peter said, the line to the IP should have a vac leak in the running position and the line to the vac source should not. Also, if somebody stuck a one way valve in the shutoff line it would stay shut off. Mitch. ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] vacuum pump 300D
Brown line is supply, brown with blue stripe goes to the servo. Yes, there are two lines to the keyswitch. Peter ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] vacuum pump 300D
Now I have a new problem. The car will not continue running after I hook up the vacuum line the allows the key to shut off the engine. If I disconnect the line the car will start but not shut off. Lines reversed to the vacuum valve on the keyswitch? Due to the venting required while the car is 'on' there would be a vacuum leak to the key if the switch is reversed, so you can test it from the firewall using a MityVac, or maybe just suck on the tube. -- Jim ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] vacuum pump 300D
Can you tell that I am novice ? There are two lines to the ignition? Does anyone have a vacuum diagram for a 1985 300TD Wagon? There is a lot more stuff under the hood on an 85 compared to the 82. Thanks Mike On Nov 14, 2009, at 9:36 PM, Mitch Haley wrote: Lines reversed at the ignition switch? Mitch. Michael Esh wrote: Thank you both for the info. I have corrected the problem, it was a leaky connection under the dash. Now I have a new problem. The car will not continue running after I hook up the vacuum line the allows the key to shut off the engine. If I disconnect the line the car will start but not shut off. Any ideas? ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] vacuum pump 300D
Lines reversed at the ignition switch? Mitch. Michael Esh wrote: Thank you both for the info. I have corrected the problem, it was a leaky connection under the dash. Now I have a new problem. The car will not continue running after I hook up the vacuum line the allows the key to shut off the engine. If I disconnect the line the car will start but not shut off. Any ideas? ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] vacuum pump 300D
Thank you both for the info. I have corrected the problem, it was a leaky connection under the dash. Now I have a new problem. The car will not continue running after I hook up the vacuum line the allows the key to shut off the engine. If I disconnect the line the car will start but not shut off. Any ideas? Mike On Nov 14, 2009, at 12:22 PM, Jim Cathey wrote: My auto shutoff is and not working correctly...about 5 pounds of vacuum when I check it. You might find the vacuum parts of our old 240D's saga interesting: http://userweb.windwireless.net/~jimc/mb240d.html A lot of wasted effort that was, in the end, solved with a drill bit. -- Jim ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] vacuum pump 300D
My auto shutoff is and not working correctly...about 5 pounds of vacuum when I check it. You might find the vacuum parts of our old 240D's saga interesting: http://userweb.windwireless.net/~jimc/mb240d.html A lot of wasted effort that was, in the end, solved with a drill bit. -- Jim ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] vacuum pump 300D
10-12" mercury at idle. Check for a cracked main line where all the secondary lines attach, this is a common failure and results in poor power brake reserve and low vac to everything else. A bad brake booster (split diaphragm) will also result in low vac, although usually with a fairly hard brake pedal too. Check for crud in the secondary line ports, they all have metering orifices in them. If they have collected crud, you will have inadequate vac. And, by this age, suspect ALL the vac lines in the engine compartment. The hard one crack, the rubber bits either turn to goo or petrify, and leak in either case. Last, if you have had a shut-off diaphragm go bad, the oil that creeps up the vac lines will kill the keyswitch valve, causing it to leak and failure to shut off. All the other stuff is cheaper than a vac pump repair, of course! To check the pump itself, I would recommend making an adapter to fit directly to the pump after removing the main line. Peter ___ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
